WorldWideScience

Sample records for broadcasting

  1. Broadcasting

    OpenAIRE

    Productivity Commission

    2002-01-01

    In 1999, the Commonwealth Government referred the Broadcasting Services Act and related legislation to the Productivity Commission for inquiry and report within twelve months. The inquiry stems from the Government’s commitment under the Competition Principles Agreement to review legislation for its anticompetitive effects and covers the Broadcasting Services Act 1992 (including the 1998 digital conversion amendments), Broadcasting Services (Transitional Provisions and Consequential Amendments...

  2. Digital broadcasting

    International Nuclear Information System (INIS)

    This book contains twelve chapters, which deals with digitization of broadcast signal such as digital open, digitization of video signal and sound signal digitization of broadcasting equipment like DTPP and digital VTR, digitization of equipment to transmit such as digital STL, digital FPU and digital SNG, digitization of transmit about digital TV transmit and radio transmit, digital broadcasting system on necessity and advantage, digital broadcasting system abroad and Korea, digital broadcasting of outline, advantage of digital TV, ripple effect of digital broadcasting and consideration of digital broadcasting, ground wave digital broadcasting of DVB-T in Europe DTV in U.S.A and ISDB-T in Japan, HDTV broadcasting, satellite broadcasting, digital TV broadcasting in Korea, digital radio broadcasting and new broadcasting service.

  3. Broadcast Services; Evolution of Broadcasting.

    Science.gov (United States)

    Federal Communications Commission, Washington, DC.

    The structure, history, technology and especially regulation of broadcasting in general are summarized in this Federal Communication Commission (FCC) information bulletin. Further specifics of history, technology, structure and regulation are presented for AM radio, FM radio, television, educational broadcasting, and broadcast relay by satellite.…

  4. Broadcasting house

    DEFF Research Database (Denmark)

    Sattrup, Peter Andreas

    2008-01-01

    Regarding the transformation of the Danish Broadcasting Hq. (1934-1945) in Frederiksberg by Vilhelm Lauritzen into the Royal Danish Academy of Music. Analysis, principles, flexibility and change.......Regarding the transformation of the Danish Broadcasting Hq. (1934-1945) in Frederiksberg by Vilhelm Lauritzen into the Royal Danish Academy of Music. Analysis, principles, flexibility and change....

  5. Next generation mobile broadcasting

    CERN Document Server

    Gómez-Barquero, David

    2013-01-01

    Next Generation Mobile Broadcasting provides an overview of the past, present, and future of mobile multimedia broadcasting. The first part of the book-Mobile Broadcasting Worldwide-summarizes next-generation mobile broadcasting technologies currently available. This part covers the evolutions of the Japanese mobile broadcasting standard ISDB-T One-Seg, ISDB-Tmm and ISDB-TSB; the evolution of the South Korean T-DMB mobile broadcasting technology AT-DMB; the American mobile broadcasting standard ATSC-M/H; the Chinese broadcasting technologies DTMB and CMMB; second-generation digital terrestrial

  6. Quantum broadcast communication

    Institute of Scientific and Technical Information of China (English)

    Wang Jian; Zhang Quan; Tang Chao-Jing

    2007-01-01

    Broadcast encryption allows the sender to securely distribute his/her secret to a dynamically changing group of users over a broadcast channel. In this paper, we just take account of a simple broadcast communication task in quantum scenario, in which the central party broadcasts his secret to multi-receiver via quantum channel. We present three quantum broadcast communication schemes. The first scheme utilizes entanglement swapping and GreenbergerHorne-Zeilinger state to fulfil a task that the central party broadcasts the secret to a group of receivers who share a group key with him. In the second scheme, based on dense coding, the central party broadcasts the secret to multi-receiver,each of which shares an authentication key with him. The third scheme is a quantum broadcast communication scheme with quantum encryption, in which the central party can broadcast the secret to any subset of the legal receivers.

  7. Public Service Broadcasting.

    OpenAIRE

    Armstrong, Mark

    2005-01-01

    This essay discusses the merits of public intervention in the provision of television broadcasting services. I argue that intervention was justified in the past, when there were just a few channels and when advertising was the sole source of commercial funds. However, the advent of subscription television overcomes many of the market failures which once existed. Moreover, asymmetric treatment of broadcasters acts to distort the incentives of commercial broadcasters. Finally, viewers have an i...

  8. Quantum Shared Broadcasting

    OpenAIRE

    Giovannetti, V.; Holevo, A. S.

    2007-01-01

    A generalization of quantum broadcasting protocol is presented. Here the goal is to copy an unknown input state into two subsystems which partially overlap. We show that the possibility of implementing these protocols strongly depends upon the overlap among the subsystems. Conditions for approximated shared broadcasting are analyzed.

  9. Television Broadcasting and Ethics.

    Science.gov (United States)

    Harriott, J. F. X., Ed.

    1984-01-01

    Topics in this special journal issue are research suggesting television encourages higher behavior standards among children; processes British broadcasters use to decide what to show or not to show on television; the role of broadcasting in nonformal adult education; the influence of international television; and neglected issues regarding…

  10. Implications of Internet on Broadcasting

    DEFF Research Database (Denmark)

    Henten, Anders; Tadayoni, Reza

    One of the main challenges within broadcasting research in the recent years has been to understand the evolution from traditional broadcasting to digital broadcasting. The aim of this paper is to step further and give an analysis of Internet’s influence on traditional broadcasting services...

  11. Television Broadcast Stations

    Data.gov (United States)

    Federal Communications Commission — The FCC TV Query should be used to generate lists and/or retrieve information about television broadcast stations. It provides an official listing of all TV Channels.

  12. Television Broadcasting for Schools

    Science.gov (United States)

    Hall, Geoffrey

    1973-01-01

    An outline of the BBC's provision of television for British schools describing the constitution and function of the School Broadcasting Council and the role of the BBC School Television Department. (Author)

  13. Broadcasters Hit Home Straight

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    China’s broadcasters enter the final phase of preparations fbr next year’s Olympic Games The most critical information we are keen on delivering is that every- thing is going well,said Sun Weijia, Director of the Media Operations Department of the Beijing Organizing Committee for the Games of of the XXIX Olympiad(BOCOG)on the eve of the 2007 World Broadcasters Conference.

  14. Data broadcasting: merging digital broadcasting with the Internet

    DEFF Research Database (Denmark)

    Schoenau-Fog, Henrik

    2001-01-01

    problems resulting from dense traffic on the Internet * Considers the technical implications of data broadcasting over different network infrastructures * Examines the process of developing and launching multimedia channels in a data broadcasting environment. Essential, up to date coverage for executives...

  15. Broadcasting of inseparability

    International Nuclear Information System (INIS)

    Suppose we are given an entangled pair and asked how well we can produce two entangled pairs starting from a given entangled pair using only local operations. To respond to this question, we study broadcasting of entanglement using a state-dependent quantum cloning machine as a local copier. We show that the length of the interval for probability-amplitude-squared α2 for broadcasting of entanglement using a state-dependent cloner can be made larger than the length of the interval for probability-amplitude-squared for broadcasting entanglement using a state-independent cloner. Further we show that there exists a local state-dependent cloner which gives better quality copy (in terms of average fidelity) of an entangled pair than the local universal cloner

  16. Probabilistic broadcasting of mixed states

    International Nuclear Information System (INIS)

    It is well known that the non-broadcasting theorem proved by Barnum et al is a fundamental principle of quantum communication. As we are aware, optimal broadcasting (OB) is the only method to broadcast noncommuting mixed states approximately. In this paper, motivated by the probabilistic cloning of quantum states proposed by Duan and Guo, we propose a new way for broadcasting noncommuting mixed states-probabilistic broadcasting (PB), and we present a sufficient condition for PB of mixed states. To a certain extent, we generalize the probabilistic cloning theorem from pure states to mixed states, and in particular, we generalize the non-broadcasting theorem, since the case that commuting mixed states can be exactly broadcast can be thought of as a special instance of PB where the success ratio is 1. Moreover, we discuss probabilistic local broadcasting (PLB) of separable bipartite states

  17. The quandry of benchmarking broadcasts

    International Nuclear Information System (INIS)

    A message passing library's implementation of broadcast communication can significantly affect the performance of applications built with that library. In order to choose between similar implementations or to evaluate available libraries, accurate measurements of broadcast performance are required. As we demonstrate, existing methods for measuring broadcast performance are either inaccurate or inadequate. Fortunately, we have designed an accurate method for measuring broadcast performance. Measuring broadcast performance is not simple. Simply sending one broadcast after another allows them to proceed through the network concurrently, thus resulting in accurate per broadcast timings. Existing methods either fail to eliminate this pipelining effect or eliminate it by introducing overheads that are as difficult to measure as the performance of the broadcast itself. Our method introduces a measurable overhead to eliminate the pipelining effect

  18. Virtue Broadcasting - directorate change

    CERN Multimedia

    2003-01-01

    The Board of Virtue Broadcasting Plc ("Virtue") have announced the appointment of Mr. Klaus Ackerstaff as the CEO of the main Board. He began his professional career at CERN, where he was responsible for the IT infrastructure of the OPAL (particle physics) project (1/2 page).

  19. Quantum broadcast channels

    CERN Document Server

    Yard, J; Devetak, I; Yard, Jon; Hayden, Patrick; Devetak, Igor

    2006-01-01

    We analyze quantum broadcast channels, which are quantum channels with a single sender and many receivers. Focusing on channels with two receivers for simplicity, we generalize a number of results from the network Shannon theory literature which give the rates at which two senders can receive a common message, while a personalized one is sent to one of them. Our first collection of results applies to channels with a classical input and quantum outputs. The second class of theorems we prove concern sending a common classical message over a quantum broadcast channel, while sending quantum information to one of the receivers. The third group of results we obtain concern communication over an isometry, giving the rates at quantum information can be sent to one receiver, while common quantum information is sent to both, in the sense that tripartite GHZ entanglement is established. For each scenario, we provide an additivity proof for an appropriate class of channels, yielding single-letter characterizations of the...

  20. Satellite broadcasting in Europe

    Science.gov (United States)

    Bartholome, P.

    1984-05-01

    Three main communications services are recognized by the International Telecommunications Union: the Fixed Service, the Mobile Service and the Broadcasting Service. In Europe, EUTELSAT has just begun to exploit the first ECS satellite. The ESA-launched satellite was originally designed to provide an international public telecommunication service, however, the satellite will be used now almost exclusively for TV program distribution, while a second ECS satellite will be used for telephony. Despite plans for the launch of a third, countries in Europe are looking to other organizations such as INTELSAT for greater satellite capacity. Other organizations include Unisat, DFS/Copernicus, GDL, and Videosat. Both satellite and cable networks will increase the program-viewing audience, thus encouraging plans for a pan-European television service intended for an international audience. Although the combination of cable networks and distribution satellites looks promising, high-power broadcasting satellites will play an important role because of flexibility and additional program distribution.

  1. From Broadcast to Podcast

    DEFF Research Database (Denmark)

    Fibiger, Bo

    2007-01-01

    This paper will present the development from broadcasted educational television up to the actual use of streaming video and mobile units in eLearning. The paper will discuss the following topics: what can we learn from history? – and what are the new challenges and possibilities in mobile...... technologies? What we can learn from history is that new technologies provide new didactic possibilities. On the other hand, most of the uses are based on remediation of former formats. Despite the possibilities for interaction and integration, most video in the screen are formatted as traditional broadcasted...... television. Today the new video technologies can be labelled the three P’s: production, portability, and panorama/3D. The challenge is how to develop new formats and new didactics for the integration of the new technology in learning environments....

  2. Broadcast sound technology

    CERN Document Server

    Talbot-Smith, Michael

    1990-01-01

    Broadcast Sound Technology provides an explanation of the underlying principles of modern audio technology. Organized into 21 chapters, the book first describes the basic sound; behavior of sound waves; aspects of hearing, harming, and charming the ear; room acoustics; reverberation; microphones; phantom power; loudspeakers; basic stereo; and monitoring of audio signal. Subsequent chapters explore the processing of audio signal, sockets, sound desks, and digital audio. Analogue and digital tape recording and reproduction, as well as noise reduction, are also explained.

  3. Financing Public Service Broadcasting

    DEFF Research Database (Denmark)

    Berg, Christian Edelvold; Lund, Anker Brink

    2012-01-01

    Recently several European countries have abolished the traditional public service licence fee system, replacing it with direct public funding. But except for Iceland, the Nordic countries have not followed suit. The article discusses this development within a comparative framework of Public Service...... Broadcasting (PSB) financing regimes in Europe, concluding that Denmark, Finland, Iceland, Norway, and Sweden may still be considered conventional, licence fee PSB countries, but with some interesting differences in relation to competitive and market oriented alternatives of resource provision...

  4. Quantum broadcast communication with authentication

    International Nuclear Information System (INIS)

    Two simple quantum broadcast communication schemes are proposed. A central party can broadcast his secret message to all the legitimate receivers simultaneously. Compared with the three schemes proposed recently (Wang et al. 2007 Chin. Phys. 16 1868), the proposed schemes have the advantages of consuming fewer quantum and classical resources, lessening the difficulty and intensity of necessary operations, and having higher efficiency. (general)

  5. VETERAN BROADCASTER LEADS OLYMPIC CHARGE

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    With its leadership team and technological know-how, the Beijing Olympic Broadcasting Co. Ltd. endeavors to bring the Olympics live to people around the globe The first thing that Ma Guoli, Chief Operating Officer of the Beijing Olympic Broadcasting Co.

  6. Broadcast-Based Spatial Queries

    Institute of Scientific and Technical Information of China (English)

    Kwang-Jin Park; Moon-Bae Song; Chong-Sun Hwang

    2005-01-01

    Indexing techniques have been developed for wireless data broadcast environments, in order to conserve the scarce power resources of the mobile clients. However, the use of interleaved index segments in a broadcast cycle increases the average access latency for the clients. In this paper, the broadcast-based spatial query processing methods (BBS)are presented for the location-based services. In the BBS, broadcasted data objects are sorted sequentially based on their locations, and the server broadcasts the location dependent data along with an index segment. Then, a sequential prefetching and caching scheme is designed to reduce the query response time. The performance of this scheme is investigated in relation to various environmental variables, such as the distributions of the data objects, the average speed of the clients and the size of the service area.

  7. Commercial satellite broadcasting for Europe

    Science.gov (United States)

    Forrest, J. R.

    1988-12-01

    A review is presented of the current television broadcasting situation in European countries, which involves a varied mix of terrestrial VHF or UHF systems and cable networks. A small market has emerged in Europe for receivers using the low-power telecommunications satellite transmission between the program providers and cable network companies. This is expected to change with the launch of medium-power pan-European telecommunication satellites (e.g. ASTRA, EUTELSAT II), which are now directly addressing the market of home reception. DBS (direct broadcast satellite) in the UK, using the D-MAC transmission standard, will offer three additional television channels, data broadcasting services, and a planned evolution to compatible forms of wide-screen, high-definition television. Comments are given on receiver and conditional access system standardization. Some views are expressed on satellite broadcasting as part of an overall broadcasting framework for the future.

  8. A Resource Curriculum in Broadcast Media. Bulletin No. 8025.

    Science.gov (United States)

    Herian, Roger; Moen, Mary

    A resource for teachers who design instructional programs in broadcast media, this curriculum guide consists of eight units which deal with the nature of broadcast media, broadcast programming and public interest, broadcast advertising, broadcast regulation, societal effects of broadcasting, broadcasting and future technology, radio broadcasting,…

  9. Optimal broadcasting of mixed states

    International Nuclear Information System (INIS)

    The N to M (M≥N) universal quantum broadcasting of mixed states ρxN is proposed for a qubit system. The broadcasting of mixed states is universal and optimal in the sense that the shrinking factor is independent of the input state and achieves the upper bound. The quantum broadcasting of mixed qubits is a generalization of the universal quantum cloning machine for identical pure input states. A pure state decomposition of the identical mixed qubits ρxN is obtained

  10. Broadcast Services. Information Bulletin No. 3.

    Science.gov (United States)

    Federal Communications Commission, Washington, DC.

    Radio and television broadcasting is authorized and regulated by the Federal Communications Commission (FCC). Following a brief description of the development of broadcasting, broadcast regulations, and the Commission, this report examines various aspects of the subject pertaining to the fairness doctrine, political broadcasting, advertising, sale…

  11. Unified broadcast in sensor networks

    DEFF Research Database (Denmark)

    Hansen, Morten Tranberg; Jurdak, Raja; Kusy, Branislav

    2011-01-01

    Complex sensor network applications include multiple services such as collection, dissemination, time synchronization, and failure detection protocols. Many of these protocols require local state maintenance through periodic broadcasts which leads to high control overhead. Recent attempts...

  12. Irish language and public broadcasting

    OpenAIRE

    GAYNOR, Brian

    2008-01-01

    This paper examines the history of Irish language broadcasting since the foundation of the Irish state in 1922. It outlines how the role of Irish in the broadcast media has always been determined by the wider social and political landscape, and the changing conceptions of what constitutes Irish national identity. The initial aim of complete language revitalization gradually gave way to a policy of marginalization. It was only relatively recently that Irish has been officially recognized as a ...

  13. SCRUTINY OF BROADCASTING PROTOCOLS IN VANET

    OpenAIRE

    Rohini Nere; Uma Nagaraj

    2015-01-01

    Definitive broadcasting in vehicular ad hoc networks is the key to success for various services and applications on an intelligent transportation system. Many trusted broadcasting protocols have been proposed but none of them has been evaluated in realistic scenario. In this paper, we discuss these reliable broadcasting protocols on VANET. Basic mechanism in broadcasting, and also we are providing collective research of Broadcasting protocols in vanet in that some real time protoc...

  14. Broadcast Encryption for Differently Privileged

    Science.gov (United States)

    Jin, Hongxia; Lotspiech, Jeffery

    Broadcast encryption is a primary technology that has been used for content protection. It enables a broadcaster to distribute content to a set of users so that only a privileged subset of users can access the content and another subset of revoked users cannot access the content. The main enabling block in a broadcast encryption scheme is the session key block, which each authorized user processes differently, but each gets the same valid session key. Currently all existing broadcast encryption schemes have assumed that the content and authorized users are equally privileged. There are emerging scenarios that demand protection for content with different privileges and for users with different privileges. In this paper we shall present a new broadcast encryption scheme that continues to employ single session key blocks but provides different privileged protections for different content and users. In particular we will expand the elegant subset-cover-based broadcast encryption scheme. We shall introduce a new concept called “security class” into the session key blocks. We use keys derived from a chain of one-way functions. Our approach is simple, efficient and secure.

  15. Acoustics of a broadcast center

    Science.gov (United States)

    Beristain, Sergio

    2003-04-01

    A broadcast system in Mexico City had to change facilities in order to concentrate in a single site all related broadcast stations and production studios in order to facilitate its normal operation. This led to a design which included the acoustic noise isolation and the interior acoustics of every studio and control room, together with the audio interconection, the electricity layout, the air conditioning system, the office building, etc. This paper presents the acoustics profile of the center, including final results of the construction as they were measured on completion of the installation. The complex has seven AM and FM broadcast stations, plus seven production studios for news, commercials and radio-novels plus an audio master control room, and everything was completed within four months.

  16. Cover Time and Broadcast Time

    OpenAIRE

    Elsässer, Robert; Sauerwald, Thomas

    2009-01-01

    We introduce a new technique for bounding the cover time of random walks by relating it to the runtime of randomized broadcast. In particular, we strongly confirm for dense graphs the intuition of Chandra et al.~\\cite{CRRST97} that ``the cover time of the graph is an appropriate metric for the performance of certain kinds of randomized broadcast algorithms''. In more detail, our results are as follows: \\begin{itemize} \\item For any graph $G=(V,E)$ of size $n$ and minimum degree $\\delta$, we h...

  17. Broadcast and Aggregation in BBC

    DEFF Research Database (Denmark)

    Hüttel, Hans; Kiilerich Pratas, Nuno

    2015-01-01

    In this paper we introduce a process calculus BBC that has both forms of communication. For both many-to-one and one-to-many communication, it is often a natural assumption that communication is bounded; this reflects two distinct aspects of the limitations of a medium. In the case of broadcast......, the bound limits the number of possible recipients of a message. In the case of collection, the bound limits the number of messages that can be received. For this reason, BBC uses a notion of bounded broadcast and collection. Moreover, the syntax of the calculus introduces an explicit notion of...

  18. Digital Audio Application to Short Wave Broadcasting

    Science.gov (United States)

    Chen, Edward Y.

    1997-01-01

    Digital audio is becoming prevalent not only in consumer electornics, but also in different broadcasting media. Terrestrial analog audio broadcasting in the AM and FM bands will be eventually be replaced by digital systems.

  19. History of Satellite TV Broadcasting and Satellite Broadcasting Market in Turkey

    OpenAIRE

    Mihalis KUYUCU

    2015-01-01

    The present study analyses the satellite broadcasting that is the first important development that emerged as a result of digitalization in communication technologies and its reflections in Turkey. As the first milestone in the globalization of television broadcasting, satellite broadcasting provided substantial contribution towards the development of the media. Satellite bro adcasting both increased the broadcasting qualit...

  20. Construction on the Broadcasting of Cultural Value

    Institute of Scientific and Technical Information of China (English)

    Ai Xu

    2011-01-01

    Broadcast host responsible transmission of information, expression of emotion and preserving culture. Construction of broadcasting cultural value will raise the cultural character of the electronic medium itself, provide spiritual power of the people's needs, enhancing the cultural influence of broadcasting on audiences.

  1. A generalized no-broadcasting theorem

    OpenAIRE

    Barnum, H.; Barrett, J; Leifer, M.; Wilce, A.

    2007-01-01

    We prove a generalized version of the no-broadcasting theorem, applicable to essentially \\emph{any} nonclassical finite-dimensional probabilistic model satisfying a no-signaling criterion, including ones with ``super-quantum'' correlations. A strengthened version of the quantum no-broadcasting theorem follows, and its proof is significantly simpler than existing proofs of the no-broadcasting theorem.

  2. 47 CFR 73.128 - AM stereophonic broadcasting.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false AM stereophonic broadcasting. 73.128 Section 73.128 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.128 AM stereophonic broadcasting. (a) An Am broadcast...

  3. Broadcast and Aggregation in BBC

    DEFF Research Database (Denmark)

    Hüttel, Hans; Kiilerich Pratas, Nuno

    2015-01-01

    In this paper we introduce a process calculus BBC that has both forms of communication. For both many-to-one and one-to-many communication, it is often a natural assumption that communication is bounded; this reflects two distinct aspects of the limitations of a medium. In the case of broadcast, ...

  4. Digital audio and video broadcasting by satellite

    Science.gov (United States)

    Yoshino, Takehiko

    In parallel with the progress of the practical use of satellite broadcasting and Hi-Vision or high-definition television technologies, research activities are also in progress to replace the conventional analog broadcasting services with a digital version. What we call 'digitalization' is not a mere technical matter but an important subject which will help promote multichannel or multimedia applications and, accordingly, can change the old concept of mass media, such as television or radio. NHK Science and Technical Research Laboratories has promoted studies of digital bandwidth compression, transmission, and application techniques. The following topics are covered: the trend of digital broadcasting; features of Integrated Services Digital Broadcasting (ISDB); compression encoding and transmission; transmission bit rate in 12 GHz band; number of digital TV transmission channels; multichannel pulse code modulation (PCM) audio broadcasting system via communication satellite; digital Hi-Vision broadcasting; and development of digital audio broadcasting (DAB) for mobile reception in Japan.

  5. Broadcast scheduling for mobile advertising

    OpenAIRE

    De Reyck, B; Degraeve, Z.

    2003-01-01

    We describe a broadcast scheduling system developed for a precision marketing firm specialized in location-sensitive permission-based mobile advertising using SMS (Short Message Service) text messaging. Text messages containing advertisements were sent to registered customers when they were shopping in one of two shopping centers in the vicinity of London. The ads typically contained a limited-time promotional offer. The company's problem was deciding which ads to send out to which customers ...

  6. Political Economics of Broadcast Media

    OpenAIRE

    Alejandro Castañeda; Cesar Martinelli

    2015-01-01

    We offer a tractable model of broadcast media as a three-sided platform, serving entertainment and news to viewers, commercial opportunities to advertisers, and electoral influence to politicians. We characterize the profit maximization decision of a media firm, and study the effect on social welfare of changes in the value of electoral influence, via induced changes in commercial advertising, the entertainment value of media, and political distortions.

  7. Y-Hamiltonian Layers Broadcast Algorithm

    OpenAIRE

    Amnah El-Obaid; Nagham_Al-Madi

    2016-01-01

    Anew approach to broadcast in wormhole routed three-dimensional networks is proposed. One of the most important process in communication and parallel computer is broadcast approach.. The approach of this case of Broadcasting is to send the message from one source to all destinations in the network which corresponds to one-to-all communication. Wormhole routing is a fundamental routing mechanism in modern parallel computers which is characterized with low communication latency. We ...

  8. A father protocol for quantum broadcast channels

    CERN Document Server

    Dupuis, F; Dupuis, Fr\\'ed\\'eric; Hayden, Patrick

    2006-01-01

    We present a new protocol for quantum broadcast channels based on the fully quantum Slepian-Wolf protocol. The protocol yields an achievable rate region for entanglement-assisted transmission of quantum information through a quantum broadcast channel that can be considered the quantum analogue of Marton's region for classical broadcast channels. The protocol can be adapted to yield achievable rate regions for unassisted quantum communication and for entanglement-assisted classical communication. Regularized versions of all three rate regions are provably optimal.

  9. A father protocol for quantum broadcast channels

    OpenAIRE

    Dupuis, Frédéric; Hayden, Patrick; Li, Ke

    2006-01-01

    A new protocol for quantum broadcast channels based on the fully quantum Slepian-Wolf protocol is presented. The protocol yields an achievable rate region for entanglement-assisted transmission of quantum information through a quantum broadcast channel that can be considered the quantum analogue of Marton's region for classical broadcast channels. The protocol can be adapted to yield achievable rate regions for unassisted quantum communication and for entanglement-assisted classical communica...

  10. 37 CFR 381.2 - Definition of public broadcasting entity.

    Science.gov (United States)

    2010-07-01

    ... broadcasting entity. 381.2 Section 381.2 Patents, Trademarks, and Copyrights COPYRIGHT ROYALTY BOARD, LIBRARY... WITH NONCOMMERCIAL EDUCATIONAL BROADCASTING § 381.2 Definition of public broadcasting entity. As used in this part, the term public broadcasting entity means a noncommercial educational broadcast...

  11. 47 CFR 73.297 - FM stereophonic sound broadcasting.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false FM stereophonic sound broadcasting. 73.297... RADIO BROADCAST SERVICES FM Broadcast Stations § 73.297 FM stereophonic sound broadcasting. (a) An FM... broadcasting, equipment performance measurements must be made to ensure that the transmitted signal...

  12. 47 CFR 73.403 - Digital audio broadcasting service requirements.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Digital audio broadcasting service requirements. 73.403 Section 73.403 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES Digital Audio Broadcasting § 73.403 Digital audio broadcasting...

  13. 47 CFR 73.1250 - Broadcasting emergency information.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Broadcasting emergency information. 73.1250... RADIO BROADCAST SERVICES Rules Applicable to All Broadcast Stations § 73.1250 Broadcasting emergency information. (a) Emergency situations in which the broadcasting of information is considered as furthering...

  14. MPEG-21 in broadcasting: the novel digital broadcast item model

    Science.gov (United States)

    Lugmayr, Artur R.; Touimi, Abdellatif B.; Kaneko, Itaru; Kim, Jong-Nam; Alberti, Claudio; Yona, Sadigurschi; Kim, Jaejoon; Andrade, Maria Teresa; Kalli, Seppo

    2004-05-01

    The MPEG experts are currently developing the MPEG-21 set of standards and this includes a framework and specifications for digital rights management (DRM), delivery of quality of services (QoS) over heterogeneous networks and terminals, packaging of multimedia content and other things essential for the infrastructural aspects of multimedia content distribution. Considerable research effort is being applied to these new developments and the capabilities of MPEG-21 technologies to address specific application areas are being investigated. One such application area is broadcasting, in particular the development of digital TV and its services. In more practical terms, digital TV addresses networking, events, channels, services, programs, signaling, encoding, bandwidth, conditional access, subscription, advertisements and interactivity. MPEG-21 provides an excellent framework of standards to be applied in digital TV applications. Within the scope of this research work we describe a new model based on MPEG-21 and its relevance to digital TV: the digital broadcast item model (DBIM). The goal of the DBIM is to elaborate the potential of MPEG-21 for digital TV applications. Within this paper we focus on a general description of the DBIM, quality of service (QoS) management and metadata filtering, digital rights management and also present use-cases and scenarios where the DBIM"s role is explored in detail.

  15. Watershed Education for Broadcast Meteorologists

    Science.gov (United States)

    Lamos, J. P.; Sliter, D.; Espinoza, S.; Spangler, T. C.

    2006-12-01

    The National Environmental Education and Training Organization (NEETF) published a report in 2005 that summarized the findings of ten years of NEETF and Roper Research. The report stated, "Our years of data from Roper surveys show a persistent pattern of environmental ignorance even among the most educated and influential members of society." Market research has also shown that 80% of television viewers list the weather as the primary reason for watching the local news. Broadcast meteorologists, with a broader understanding of environmental and related sciences have an opportunity to use their weathercasts to inform the public about the environment and the factors that influence environmental health. As "station scientists," broadcast meteorologists can use the weather, and people's connection to it, to broaden their understanding of the environment they live in. Weather and watershed conditions associated with flooding and drought have major human and environmental impacts. Increasing the awareness of the general public about basic aspects of the hydrologic landscape can be an important part of mitigating the adverse effects of too much or too little precipitation, and of protecting the environment as well. The concept of a watershed as a person's natural neighborhood is a very important one for understanding hydrologic and environmental issues. Everyone lives in a watershed, and the health of a watershed is the result of the interplay between weather and human activity. This paper describes an online course to give broadcast meteorologists a basic understanding of watersheds and how watersheds are impacted by weather. It discusses how to convey watershed science to a media- savvy audience as well as how to model the communication of watershed and hydrologic concepts to the public. The course uses a narrative, story-like style to present its content. It is organized into six short units of instruction, each approximately 20 minutes in duration. Each unit is

  16. Lossless Compression of Broadcast Video

    DEFF Research Database (Denmark)

    Martins, Bo; Eriksen, N.; Faber, E.;

    1998-01-01

    We investigate several techniques for lossless and near-lossless compression of broadcast video.The emphasis is placed on the emerging international standard for compression of continous-tone still images, JPEG-LS, due to its excellent compression performance and moderatecomplexity. Except for one...... artificial sequence containing uncompressible data all the 4:2:2, 8-bit test video material easily compresses losslessly to a rate below 125 Mbit/s. At this rate, video plus overhead can be contained in a single telecom 4th order PDH channel or a single STM-1 channel. Difficult 4:2:2, 10-bit test material...

  17. 78 FR 42700 - Radio Broadcasting Services; Matagorda, Texas

    Science.gov (United States)

    2013-07-17

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Matagorda, Texas AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: The Audio Division, at the request of Tejas Broadcasting Ltd., LLP... broadcasting. Federal Communications Commission. Nazifa Sawez, Assistant Chief, Audio Division, Media...

  18. 76 FR 76337 - Television Broadcasting Services; Lincoln, NE

    Science.gov (United States)

    2011-12-07

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Lincoln, NE AGENCY: Federal Communications... 73 Television, Television broadcasting. Federal Communications Commission Barbara A. Kreisman, Chief... Lincoln Broadcasting, LLC (``LBL''), the licensee of KFXL-TV, channel 51, Lincoln, Nebraska,...

  19. Live broadcast from the Globe

    CERN Multimedia

    La tête au carréTuesday, 17 June 2008 between 2.00 and 3.00 p.m.“La tête au carré”, a France Inter radio programme devoted to science, will set up its sound booth at CERN for a special broadcast on the LHC.The journalist Mathieu Vidard will interview the following guests: - Pierre Van Hove, an experimental physicist working on CMS. He is a CNRS research scientist from the Institut Hubert Curien in Strasbourg, France.- Abdelhak Djouadi is a theoretical physicist. He is a research director at the CNRS’s Laboratoire de physique théorique at Orsay, France and holder of the CNRS silver medal.- Magali Gruwe, one of the engineers in charge of LHC operations at CERN.» To take part in this live broadcast, which is open to the public, come to the Globe at 1:30 p.m. The number of places is limited.» No specialist knowledge required.» See the programme's homepage

  20. Broadcasting Development and Research in Kenya.

    Science.gov (United States)

    Coldevin, G. O.

    1980-01-01

    Describes the development and use of educational broadcasting, notably radio, in Kenya since its independence. Published and unpublished reports, a 1978 survey, numerous interviews with educational radio and television officials, mass media seminars, and field visits to schools and broadcast facilities are used to analyze the major projects. (CHC)

  1. TV News Analysis Project Motivates Broadcast Class.

    Science.gov (United States)

    Smith, James R.

    1980-01-01

    Describes the use of content analysis by a journalism class in studying television news. Indicates that the method is flexible, generates familiarity with quantitative approaches to the analysis of broadcast journalism, can result in increased awareness of the complexity of the broadcast news medium, and increases student motivation. (TJ)

  2. Personal Broadcasting: Applications in Higher Education

    Science.gov (United States)

    Wolf, Patricia D.

    2007-01-01

    Personal Broadcasting, which includes podcasting, vodcasting, phonecasting, Webcasting, blogging, and wikis, is one of the emerging technologies that will have a significant effect on education within the next five years. This article describes the techniques used in personal broadcasting, describes how they are being used in higher education,…

  3. High-Performance Broadcasting Algorithms on Cluster

    Institute of Scientific and Technical Information of China (English)

    舒继武; 魏英霞; 王鼎兴

    2004-01-01

    In many clusters connected by high-speed communication networks, the exact structure of the underlying communication network and the latency difference between different sending and receiving pairs may be ignored when they broadcast, such as in the approach adopted by the broadcasting method in MPICH,a widely used MPI implementation. However, the underlying network cluster topologies are becoming more and more complicated and the performance of traditional broadcasting algorithms, such as MPICH's MPI_Bcast, is far from good. This paper analyzed the impact of communication latencies and the underlying topologies on the performance of broadcasting algorithms for multilevel clusters. A multilevel model was developed for broadcasting in clusters with complicated topologies, which divides the cluster topology into many levels based on the underlying topology. The multilevel model was used to develop a new broadcast algorithm,MLM broadcast-2 (MLMB-2), that adapts to a wide range of clusters. Comparison of the performance of the counterpart MPI operation MPI_Bcast and MLMB-2 shows that MLMB-2 outperforms MPl_Bcast by decreasing the broadcast running time by 60%-90%.

  4. Beyond the Anchor: Students and Broadcasting Opportunities.

    Science.gov (United States)

    Marks, Rick

    1999-01-01

    Describes how the author taught a class (called "Editing for Broadcasting") for 19 neophyte newspeople through total immersion: students learned how to run a newsroom while operating one. Notes that students learned the principles and fundamentals of broadcast journalism, including news judgment, writing, editing, reporting, and producing, and…

  5. Independence between Korean Government and Broadcasting Industry

    Directory of Open Access Journals (Sweden)

    Yi-Chih Huang

    2015-01-01

    Full Text Available The recent success of Hallyu (Korean Wave first driven by the spread of TV dramas received academic attention for its effective national policies. However, little is known about how national policy is implemented and local industry capacity is maintained even after market opening. Therefore, the aim of this paper attempts to explore how and why state governs broadcasting industry effectively. Historical institutionalism has been used to explain the way that Korean governments had taken to collaborate with the broadcasting industry. The relation between governments and broadcasting industry, the changes of broadcasting policies and authorities responsible for regulating TV industry are involved. Results of this study showed that strong state intervention in Korea did lead to oligopoly, and the governments dominated the industry by designing the market structure. To conclude, this study may be of importance in explaining the governed independence between Korean governments and broadcasting industry, as well as how it contributed to the stable productivity and export competitiveness.

  6. Broadcasting of quantum correlations: Possibilities and impossibilities

    Science.gov (United States)

    Chatterjee, Sourav; Sazim, Sk; Chakrabarty, Indranil

    2016-04-01

    In this work, we extensively study the problem of broadcasting of quantum correlations (QCs). This includes broadcasting of quantum entanglement as well as correlations that go beyond the notion of entanglement (QCsbE). It is quite well known from the "no-broadcasting theorem" that perfect broadcasting of QCs is not possible. However, it does not rule out the possibility of partial broadcasting of QCs where we can get lesser correlated states from a given correlated state. In order to have a holistic view of broadcasting, we investigate this problem by starting with a most general representation of two qubit mixed states in terms of the Bloch vectors. As a cloning transformation we have used universal symmetric optimal Buzek-Hillery (BH) cloner both locally and nonlocally. Unlike entanglement, we find that it is impossible to broadcast QCsbE optimally. Lastly, we generalize these results for any symmetric or asymmetric cloning machines as well. This result brings out a fundamental difference between the correlations defined from the perspective of entanglement and the correlations measure which claims to go beyond entanglement.

  7. 47 CFR 73.597 - FM stereophonic sound broadcasting.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false FM stereophonic sound broadcasting. 73.597 Section 73.597 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES... broadcasting. A noncommercial educational FM broadcast station may, without specific authority from the...

  8. 37 CFR 253.2 - Definition of public broadcasting entity.

    Science.gov (United States)

    2010-07-01

    ... broadcasting entity. 253.2 Section 253.2 Patents, Trademarks, and Copyrights COPYRIGHT OFFICE, LIBRARY OF... CONNECTION WITH NONCOMMERCIAL EDUCATIONAL BROADCASTING § 253.2 Definition of public broadcasting entity. As used in this part, the term public broadcasting entity means a noncommercial educational...

  9. 75 FR 9859 - Television Broadcasting Services; Beaumont, TX

    Science.gov (United States)

    2010-03-04

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Beaumont, TX AGENCY: Federal Communications... 1.420. List of Subjects in 47 CFR Part 73 Television, Television broadcasting. For the reasons... Freedom Broadcasting of Texas (``Freedom Broadcasting''), the licensee of KFDM(TV), channel 21,...

  10. Mass storage system by using broadcast technology

    International Nuclear Information System (INIS)

    There are many similarities between data recording systems for high energy physics and broadcast systems; the data flow is almost one-way, requires real-time recording; requires large-scale automated libraries for 24-hours operation, etc. In addition to these functional similarities, the required data-transfer and data-recording speeds are also close to those for near future experiments. For these reasons, we have collaborated with SONY Broadcast Company to study the usability of broadcast devices for our data storage system. Our new data storage system consists of high-speed data recorders and tape-robots which are originally based on the digital video-tape recorder and the tape-robot for broadcast systems. We are also studying the possibility to use these technologies for the online data-recording system for B-physics experiment at KEK. (author)

  11. Concert Programming: Tips from the Broadcasting Industry.

    Science.gov (United States)

    Kinney, Guy

    1978-01-01

    The author explains how music broadcasters codify musical selections by mood, tempo, and instrumentation, then arrange a sequence designed to maintain audience interest with a variety of listening experiences. Similar techniques are suggested for planning school concerts. (SJL)

  12. 8 CFR 204.13 - How can the International Broadcasting Bureau of the United States Broadcasting Board of...

    Science.gov (United States)

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false How can the International Broadcasting Bureau of the United States Broadcasting Board of Governors petition for a fourth preference special... Broadcasting Bureau of the United States Broadcasting Board of Governors petition for a fourth...

  13. Optimal Broadcasting of Mixed Equatorial Qubits

    International Nuclear Information System (INIS)

    We derive an optimal 2 → M phase-covariant quantum broadcasting of mixed equatorial qubits. This quantum broadcasting is optimal in the sense that the shrinking factor between the input and the output single qubit achieves the upper bound. The result shows that we can copy two identical mixed equatorial qubits with the same quality as those of two identical pure equatorial states. (general)

  14. Structure of quantum and broadcasting nonlocal correlations

    Science.gov (United States)

    Saha, Debashis; Pawłowski, Marcin

    2015-12-01

    The multipartite setting offers much more complexity of nonlocality than the bipartite one. We analyze the structure of tripartite nonlocal correlations by proposing inequalities satisfied by each of type bilocal, broadcasting, and quantum but violated by the other two. One of the inequalities satisfied by broadcasting correlations is generalized for multipartite systems. The study of its quantum mechanical violation reveals that Greenberger-Horne-Zeilinger-like states exhibit new, powerful correlations.

  15. Spectrum Management and Broadcasting: Current Issues

    OpenAIRE

    Cave, Martin

    2006-01-01

    Broadcasting policy has traditionally been supported by a 'command-and-control' system of assigning frequencies for terrestrial transmission, but this link is being eroded by the emergence of other technologies – cable, satellite, IPTV, mobile broadcasting - and by the emergence of multi-channel television, which is facilitated by digital terrestrial television. The switch off of analogue terrestrial transmission is being achieved through significant government intervention, but with diverse ...

  16. Optimal Broadcasting of Mixed Equatorial Qubits

    Institute of Scientific and Technical Information of China (English)

    YU Zong-Wen

    2009-01-01

    We derive an optimal 2→M phase-covariant quantum broadcasting of mixed equatorial qubits.This quantum broadcasting is optimal in the sense that the shrinking factor between the input and the output single qubit achieves the upper bound.The result shows that we can copy two identical mixed equatorial qubits with the same quality as those of two identical pure equatorial states.

  17. Distributed Algorithms in Multihop Broadcast Networks

    OpenAIRE

    Cidon, Israel; Mokryn, Osnat (Ossi)

    1999-01-01

    Broadcast networks are often used in modern communication systems. A common broadcast network is a single hop shared media system, where a transmitted message is heard by all neighbors, such as some LAN networks. In this work we consider a more complex environment, in which a transmitted message is heard only by a group of neighbors, such as Ad-Hoc networks, satellite and radio networks, as well as wireless multistation backbone system for mobile communication. It is important to design effic...

  18. On the Fundamental Limits of Broadcasting in Wireless Mobile Networks

    OpenAIRE

    Resta, Giovanni; Santi, Paolo

    2010-01-01

    In this talk, we investigate the fundamental properties of broadcasting in mobile wireless networks. In particular, we characterize broadcast capacity and latency of a mobile network, subject to the condition that the stationary node spatial distribution generated by the mobility model is uniform. We first study the intrinsic properties of broadcasting, and present a broadcasting scheme, called RippleCast, that simultaneously achieves asymptotically optimal broadcast capacity and latency, sub...

  19. Y-Hamiltonian Layers Broadcast Algorithm

    Directory of Open Access Journals (Sweden)

    Amnah El-Obaid

    2016-06-01

    Full Text Available Anew approach to broadcast in wormhole routed three-dimensional networks is proposed. One of the most important process in communication and parallel computer is broadcast approach.. The approach of this case of Broadcasting is to send the message from one source to all destinations in the network which corresponds to one-to-all communication. Wormhole routing is a fundamental routing mechanism in modern parallel computers which is characterized with low communication latency. We show how to apply this approach to 3-D meshes. Wormhole routing is divided the packets into set of FLITS (flow control digits. The first Flit of the packet (Header Flit is containing the destination address and all subsets flits will follow the routing way of the header Flit. In this paper, we consider an efficient algorithm for broadcasting on an all-port wormhole-routed 3D mesh with arbitrary size. We introduce an efficient algorithm, Y-Hamiltonian Layers Broadcast(Y-HLB. In this paper the behaviors of this algorithm were compared to the previous results, our paradigm reduces broadcast latency and is simpler. In this paper our simulation results show the average of our proposed algorithm over the other algorithms that presented

  20. Satellite voice broadcast system study, volume 2

    Science.gov (United States)

    Horstein, M.

    1985-01-01

    This study investigates the feasibility of providing Voice of America (VOA) broadcasts by satellite relay, rather than via terrestrial relay stations. Satellite voice broadcast systems are described for three different frequency bands: HF (26 MHz), VHF (68 MHz), and L-band (1.5 GHz). The geographical areas of interest at HF and L-band include all major land masses worldwide with the exception of the U.S., Canada, and Australia. Geostationary satellite configurations are considered for both frequency bands. In addition, a system of subsynchronous, circular satellites with an orbit period of 8 hours is developed for the HF band. VHF broadcasts, which are confined to the Soviet Union, are provied by a system of Molniya satellites. Satellites intended for HF or VHF broadcastinbg are extremely large and heavy. Satellite designs presented here are limited in size and weight to the capability of the STS/Centaur launch vehicle combination. Even so, at HF it would take 47 geostationary satellites or 20 satellites in 8-hour orbits to fully satisfy the voice-channel requirements of the broadcast schedule provided by VOA. On the other hand, three Molniya satellites suffice for the geographically restricted schedule at VHF. At L-band, only four geostationary satellites are needed to meet the requirements of the complete broadcast schedule. Moreover, these satellites are comparable in size and weight to current satellites designed for direct broadcast of video program material.

  1. Optically broadcasting wind direction indicator

    Science.gov (United States)

    Zysko, Jan A. (Inventor)

    1994-01-01

    An optically broadcasting wind direction indicator generates flashes of light which are separated by a time interval that is directly proportional to the angle of the wind direction relative to a fixed direction, such as north. An angle/voltage transducer generates a voltage that is proportional to the wind direction relative to the fixed direction, and this voltage is employed by timing circuitry or a microprocessor that generates pulses for actuating a light source trigger circuit first at the start of the time interval, and then at the end of the time interval. To aid an observer in distinguishing between the beginning and end of the interval, two stop flashes can be provided in quick succession. The time scale is preferably chosen so that each second of the time interval corresponds to 30 deg of direction relative to north. In this manner, an observer can easily correlate the measured time interval to the wind direction by visualizing the numbers on a conventional clock face, each of which correspond to one second of time and 30 deg of angle.

  2. Broadcast design in cognitive radio ad hoc networks

    CERN Document Server

    Song, Yi

    2014-01-01

    This SpringerBrief investigates the special challenges of broadcast design in cognitive radio (CR) ad hoc networks. It introduces two broadcast protocols in CR ad hoc networks: a quality-of-service based broadcast protocol under blind information and a fully-distributed broadcast protocol with collision avoidance. A novel unified analytical model is also presented to analyze the performance of the broadcast protocols. This is the first book dedicated to the unique broadcast design challenges in CR ad hoc networks. The authors also discuss the recent research on the performance analysis of broa

  3. Multiple Antenna Secure Broadcast over Wireless Networks

    CERN Document Server

    Liu, Ruoheng

    2007-01-01

    In wireless data networks, communication is particularly susceptible to eavesdropping due to its broadcast nature. Security and privacy systems have become critical for wireless providers and enterprise networks. This paper considers the problem of secret communication over the Gaussian broadcast channel, where a multi-antenna transmitter sends independent confidential messages to two users with perfect secrecy. That is, each user would like to obtain its own message reliably and confidentially. First, a computable Sato-type outer bound on the secrecy capacity region is provided for a multi-antenna broadcast channel with confidential messages. Next, a dirty-paper secure coding scheme and its simplified version are described. For each case, the corresponding achievable rate region is derived under the perfect secrecy requirement. Finally, two numerical examples demonstrate that the Sato-type outer bound is consistent with the boundary of the simplified dirty-paper coding secrecy rate region.

  4. Broadcasting a message in a parallel computer

    Science.gov (United States)

    Berg, Jeremy E.; Faraj, Ahmad A.

    2011-08-02

    Methods, systems, and products are disclosed for broadcasting a message in a parallel computer. The parallel computer includes a plurality of compute nodes connected together using a data communications network. The data communications network optimized for point to point data communications and is characterized by at least two dimensions. The compute nodes are organized into at least one operational group of compute nodes for collective parallel operations of the parallel computer. One compute node of the operational group assigned to be a logical root. Broadcasting a message in a parallel computer includes: establishing a Hamiltonian path along all of the compute nodes in at least one plane of the data communications network and in the operational group; and broadcasting, by the logical root to the remaining compute nodes, the logical root's message along the established Hamiltonian path.

  5. Dynamic Index Coding for Wireless Broadcast Networks

    CERN Document Server

    Neely, Michael J; Zhang, Zhen

    2011-01-01

    We consider a wireless broadcast station that transmits packets to multiple users. The packet requests for each user may overlap, and some users may already have certain packets. This presents a problem of broadcasting in the presence of side information, and is a generalization of the well known (and unsolved) index coding problem of information theory. Rather than achieving the full capacity region, we develop a code-constrained capacity region, which restricts attention to a pre-specified set of coding actions. We develop a dynamic max-weight algorithm that allows for random packet arrivals and supports any traffic inside the code-constrained capacity region. Further, we provide a simple set of codes based on cycles in the underlying demand graph. We show these codes are optimal for a class of broadcast relay problems.

  6. A DRM based on renewable broadcast encryption

    Science.gov (United States)

    Ramkumar, Mahalingam; Memon, Nasir

    2005-07-01

    We propose an architecture for digital rights management based on a renewable, random key pre-distribution (KPD) scheme, HARPS (hashed random preloaded subsets). The proposed architecture caters for broadcast encryption by a trusted authority (TA) and by "parent" devices (devices used by vendors who manufacture compliant devices) for periodic revocation of devices. The KPD also facilitates broadcast encryption by peer devices, which permits peers to distribute content, and efficiently control access to the content encryption secret using subscription secrets. The underlying KPD also caters for broadcast authentication and mutual authentication of any two devices, irrespective of the vendors manufacturing the device, and thus provides a comprehensive solution for securing interactions between devices taking part in a DRM system.

  7. Private TV and Radio Broadcasting in Azerbaijan

    Directory of Open Access Journals (Sweden)

    Vefalı ENSEROV

    2013-02-01

    Full Text Available The change of mass media and its innovation like the other areas were inevitable in post-soviet countries after the collapse of the Soviet Union. In this means, media area of Azerbaijan began to privatization process after independence and since mid 1990`s private radio and television channels began to broadcast in the country one by one that uni-centrally, officially and ideologically was directed by Moscow before. Progress which is related to privatization process of broadcasting in Azerbaijan is being handled in this study. This study also includes legal regulations in the mass media area and mechanism of auto-control. The activities of national private broadcasting companies are also scrutinized in the study as well as the condition of the communication freedom.

  8. RF fields at broadcast transmitting sites

    International Nuclear Information System (INIS)

    The purpose of broadcasting is to radiate information over large areas to randomly located receivers which may be mobile and use inefficient antennas. Quite high powers must therefore be radiated to provide reliable services, giving rise to RF fields which can exceed the Maximum Exposure Limits (MEL) given in AS 2772-1985 when close to the transmitting antennas. Measurements commenced in the early 60's have been expanded over the past 2 years and moved towards measuring all national broadcasting sites (over 400) and services (over 700). Field levels measured are summarised below

  9. 78 FR 42700 - Radio Broadcasting Services; Various Locations

    Science.gov (United States)

    2013-07-17

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Various Locations AGENCY: Federal Communications... broadcasting. Federal Communications Commission. Nazifa Sawez, Assistant Chief, Audio Division, Media...

  10. 77 FR 58799 - Radio Broadcasting Services; Roaring Springs, TX

    Science.gov (United States)

    2012-09-24

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Roaring Springs, TX AGENCY: Federal Communications... 47 CFR Part 73 Radio, Radio broadcasting. Federal Communications Commission. Nazifa Sawez,...

  11. 75 FR 3641 - Television Broadcasting Services; Anchorage, AK

    Science.gov (United States)

    2010-01-22

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Anchorage, AK AGENCY: Federal Communications... broadcasting. 0 For the reasons discussed in the preamble, the Federal Communications Commission amends 47...

  12. 77 FR 59882 - Radio Broadcasting Services; Tignall, GA

    Science.gov (United States)

    2012-10-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Tignall, GA AGENCY: Federal Communications Commission... Radio, Radio broadcasting. Federal Communications Commission. Nazifa Sawez, Assistant Chief,...

  13. 77 FR 50053 - Radio Broadcasting Services; Westley, CA

    Science.gov (United States)

    2012-08-20

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Westley, CA AGENCY: Federal Communications Commission... 73 Radio, Radio broadcasting. Federal Communications Commission. Peter H. Doyle, Chief,...

  14. 77 FR 16800 - Radio Broadcasting Services; Westfield, NY

    Science.gov (United States)

    2012-03-22

    ... From the Federal Register Online via the Government Publishing Office ] FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Westfield, NY AGENCY: Federal Communications..., Radio broadcasting. Federal Communications Commission. Nazifa Sawez, Assistant Chief, Audio...

  15. 76 FR 67397 - Radio Broadcasting Services; Llano, Texas

    Science.gov (United States)

    2011-11-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Llano, Texas AGENCY: Federal Communications Commission... 47 CFR Part 73 Radio, Radio broadcasting. Federal Communications Commission. Nazifa Sawez,...

  16. 77 FR 64758 - Radio Broadcasting Services; Randsburg, CA

    Science.gov (United States)

    2012-10-23

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Randsburg, CA AGENCY: Federal Communications... Radio, Radio broadcasting. Federal Communications Commission. Nazifa Sawez, Assistant Chief,...

  17. 76 FR 67375 - Radio Broadcasting Services; Various Locations

    Science.gov (United States)

    2011-11-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Various Locations AGENCY: Federal Communications..., Radio broadcasting. Federal Communications Commission. Nazifa Sawez, Assistant Chief, Audio...

  18. 76 FR 13579 - Radio Broadcasting Services; Hebbronville, TX

    Science.gov (United States)

    2011-03-14

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Hebbronville, TX AGENCY: Federal Communications..., Radio broadcasting. For the reasons discussed in the preamble, the Federal Communications...

  19. 78 FR 27342 - Radio Broadcasting Services; Moran, Texas

    Science.gov (United States)

    2013-05-10

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Moran, Texas AGENCY: Federal Communications Commission..., Radio broadcasting. Federal Communications Commission. Nazifa Sawez, Assistant Chief, Audio...

  20. 78 FR 44090 - Television Broadcasting Services; Cedar Rapids, Iowa

    Science.gov (United States)

    2013-07-23

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Cedar Rapids, Iowa AGENCY: Federal Communications... 73 Television, Television broadcasting. Federal Communications Commission. Hossein Hashemzadeh... freeze on the acceptance of full power television rulemaking petitions requesting channel...

  1. 76 FR 52632 - Television Broadcasting Services; Panama City, FL

    Science.gov (United States)

    2011-08-23

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Panama City, FL AGENCY: Federal Communications... 73 Television, Television broadcasting. Federal Communications Commission. Barbara A. Kreisman, Chief... Gray Television Licensee, LLC (``Gray''), the licensee of station WJHG-TV, channel 7, Panama...

  2. 76 FR 54188 - Television Broadcasting Services; Montgomery, AL

    Science.gov (United States)

    2011-08-31

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Montgomery, AL AGENCY: Federal Communications... 73 Television, Television broadcasting. Federal Communications Commission. Barbara A. Kreisman,...

  3. 75 FR 67077 - Television Broadcasting Services; Huntsville, AL

    Science.gov (United States)

    2010-11-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Huntsville, AL AGENCY: Federal Communications... 73 Television, Television broadcasting. For the reasons discussed in the preamble, the...

  4. 76 FR 5119 - Television Broadcasting Services; Jackson, MS

    Science.gov (United States)

    2011-01-28

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Jackson, MS AGENCY: Federal Communications... 73 Television, Television broadcasting. For the reasons discussed in the preamble, the...

  5. 76 FR 13966 - Television Broadcasting Services; Topeka, KS

    Science.gov (United States)

    2011-03-15

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Topeka, KS AGENCY: Federal Communications... 73 Television, Television broadcasting. Federal Communications Commission. Barbara A. Kreisman,...

  6. 76 FR 5120 - Television Broadcasting Services; El Paso, TX

    Science.gov (United States)

    2011-01-28

    ... From the Federal Register Online via the Government Publishing Office ] FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; El Paso, TX AGENCY: Federal Communications... 73 Television, Television broadcasting. For the reasons discussed in the preamble, the...

  7. 76 FR 5290 - Television Broadcasting Services; Huntsville, AL

    Science.gov (United States)

    2011-01-31

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Huntsville, AL AGENCY: Federal Communications... Part 73 Television, Television broadcasting. For the reasons discussed in the preamble, the...

  8. Distortion Bounds for Source Broadcast over Degraded Channel

    OpenAIRE

    Yu, Lei; Li, Houqiang; Li, Weiping

    2016-01-01

    The joint source-channel coding problem of sending a memoryless source over a memoryless degraded broadcast channel is considered here. We derive an inner bound and two outer bounds on the achievable distortion region. Moreover, when specialized to Gaussian source broadcast or binary source broadcast, the inner bound and outer bounds could recover the best known inner bound and outer bound. Besides, we also extend the inner bound and outer bounds to Wyner-Ziv source broadcast problem, i.e., s...

  9. A Seamless Broadcasting Scheme with Live Video Support

    OpenAIRE

    Zeng-Yuan Yang; Yi-Ming Chen; Li-Ming Tseng

    2012-01-01

    Broadcasting schemes, such as the fast broadcasting and harmonic broadcasting schemes, significantly reduce the bandwidth requirement of video-on-demand services. In the real world, some history events are very hot. For example, every year in March, thousands of people connect to Internet to watch the live show of Oscar Night. Such actions easily cause the networks contested. However, the schemes mentioned previously cannot alleviate the problem because they do not support live broadcasting. ...

  10. Commercial Broadcasting in the UK - Over-Regulation and Misregulation?

    OpenAIRE

    Veljanovski, Cento G

    1987-01-01

    The regulation of commercial television and broadcasting in the United Kingdom has evolved from the principles of public service broadcasting. Much of this regulation is paternalistic and does not place great emphasis on the most effective way of regulating an industry to achieve agreed objectives. This paper takes a critical look at commercial broadcasting regulation in the light of the recent recommendations of the Peacock Committee. In particular, the objectives of broadcasting are examine...

  11. Speech Intensity and Phonation Energy of Mandarin Broadcasters

    OpenAIRE

    Wang, G; Yiu, EML

    2014-01-01

    Introduction: The present study aimed to compare the speech intensity and its associated phonation energy (skin vibration on the neck) using accelerometers during voice production between broadcasting students and individuals with no broadcasting training. Method: Thirty two broadcasting students (17 males and 15 females, mean age = 21 years), with a minimum of three years of professional broadcasting training, were recruited to participate in the study ...

  12. 75 FR 41123 - Radio Broadcasting Services; Gearhart, OR

    Science.gov (United States)

    2010-07-15

    ... COMMISSION 47 CFR Part 73 . Radio Broadcasting Services; Gearhart, OR AGENCY: Federal Communications... comment on a petition filed by Black Hills Broadcasting, L.P. proposing the allotment of FM Channel 243A... Radio, Radio broadcasting. For the reasons discussed in the preamble, the Federal...

  13. 77 FR 58800 - Radio Broadcasting Services; Knox City, TX

    Science.gov (United States)

    2012-09-24

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Knox City, TX AGENCY: Federal Communications... Commission requests comment on a petition filed by Big Cat Broadcasting, LLC, proposing to amend the Table of....415 and 1.420. ] List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal...

  14. 77 FR 23203 - Radio Broadcasting Services; Summit, MS

    Science.gov (United States)

    2012-04-18

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Summit, MS AGENCY: Federal Communications Commission.... The Commission requests comment on a petition filed by Bowen Broadcasting, proposing to amend the...., Officer, Bowen Broadcasting, 1125 Petrified Forest Road, Flora, Mississippi 39071. FOR FURTHER...

  15. 78 FR 36683 - Radio Broadcasting Services; Summit, Mississippi

    Science.gov (United States)

    2013-06-19

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Summit, Mississippi AGENCY: Federal Communications... Broadcasting, allots FM Channel 228A ] as a first local service at Summit, Mississippi. To accommodate that... U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting....

  16. 78 FR 21337 - Radio Broadcasting Services; Matagorda, TX

    Science.gov (United States)

    2013-04-10

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Matagorda, TX AGENCY: Federal Communications... filed by Tejas Broadcasting Ltd., LLP (``Petitioner''), licensee of FM Station KMJR, Channel 252C2, Odem....415 and 1.420. List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal...

  17. 77 FR 64946 - Radio Broadcasting Services; Maysville, Georgia

    Science.gov (United States)

    2012-10-24

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Maysville, Georgia AGENCY: Federal Communications... filed by Appalachian Broadcasting Company, Inc., proposing the allotment of Channel 265A at Maysville... Broadcasting Company, Post Office Drawer E, 233 Big A Road, Toccoa, Georgia 30577. FOR FURTHER...

  18. 78 FR 26739 - Radio Broadcasting Services; Ehrenberg, Arizona

    Science.gov (United States)

    2013-05-08

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Ehrenberg, Arizona AGENCY: Federal Communications... filed by S and H Broadcasting, LLC, proposing the substitution of Channel 228C2 for vacant Channel 286C2... Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal Communications Commission. Nazifa...

  19. 75 FR 82279 - Radio Broadcasting Services; Various Locations

    Science.gov (United States)

    2010-12-30

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Various Locations AGENCY: Federal Communications... Subjects in 47 CFR Part 73 Radio, Radio broadcasting. 0 As stated in the preamble, the Federal Communications Commission amends 47 CFR part 73 as follows: PART 73--RADIO BROADCASTING SERVICES 0 1....

  20. 78 FR 266 - Radio Broadcasting Services; Maysville, GA

    Science.gov (United States)

    2013-01-03

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Maysville, GA AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: The Audio Division, at the request of Appalachian Broadcasting... Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting....

  1. 22 CFR 513.505 - Broadcasting Board of Governors responsibilities.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Broadcasting Board of Governors responsibilities. 513.505 Section 513.505 Foreign Relations BROADCASTING BOARD OF GOVERNORS GOVERNMENT DEBARMENT AND... of GSA, Board and Participants § 513.505 Broadcasting Board of Governors responsibilities. (a)...

  2. 47 CFR 74.21 - Broadcasting emergency information.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Broadcasting emergency information. 74.21 Section 74.21 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES... Applicable to All Services in Part 74 § 74.21 Broadcasting emergency information. (a) In an emergency...

  3. 47 CFR 76.66 - Satellite broadcast signal carriage.

    Science.gov (United States)

    2010-10-01

    ... MULTICHANNEL VIDEO AND CABLE TELEVISION SERVICE Carriage of Television Broadcast Signals § 76.66 Satellite... television station signals, and that owns or leases a capacity or a service on a satellite in order to... satellite carrier or to a distributor. (4) Television broadcast station. A television broadcast station...

  4. Broadcast Journalism Education and the Capstone Experience

    Science.gov (United States)

    Tanner, Andrea; Forde, Kathy Roberts; Besley, John C.; Weir, Tom

    2012-01-01

    This study assesses the current state of the television news capstone experience in accredited journalism and mass communication programs in the United States. Specifically, the authors employed a mixed-methods approach, interviewing 20 television news capstone instructors and conducting an analysis of broadcast journalism curriculum information…

  5. Noncommuting mixed states cannot be broadcast

    International Nuclear Information System (INIS)

    We show that, given a general mixed state for a quantum system, there are no physical means for broadcasting that state onto two separate quantum systems, even when the state need only be reproduced marginally on the separate systems. This result extends the standard no-cloning theorem for pure states. copyright 1996 The American Physical Society

  6. Digital Broadcasting in Hawaii: The Aloha System

    Science.gov (United States)

    Abramson, Norman

    1974-01-01

    A look at the ALOHA SYSTEM research project at the University of Hawaii, which developed and built a computer-communication network based upon the use of UHF radio broadcast channels for console to computer and computer to computer communication. (Author)

  7. Video Broadcasting Using Queue Proportional Scheduling

    Directory of Open Access Journals (Sweden)

    Dimitris Toumpakaris

    2007-01-01

    using a Markov Chain approach leading to a method for approximating the packet delay distribution. Based on the resulting distribution, it is discussed how the video encoding rate can be chosen in order to reduce the expected distortion of streams transmitted through Broadcast Channels.

  8. Satellite broadcasting - Capabilities for public service

    Science.gov (United States)

    Marsten, R. B.

    1975-01-01

    Satellite broadcast services to support health-care and educational transmissions must work with small, low-cost terminals in allocated radio-frequency bands. The ATS-6 spacecraft has successfully demonstrated such capability in the bands of non-technical users. It supports interactive television broadcasting to simple, low-cost terminals in a nationwide series of experiments in the delivery of health-care and educational services. ATS-6 achieves this capability with a very large antenna and moderate transmitter power. The coverage limitations inherent in this approach will be overcome by the joint U.S.-Canadian Communications Technology Satellite to be launched in December 1975. The CTS will demonstrate broadcast capability with new, high-power technology in a newly-allocated radio-frequency band. This will make it possible to use smaller antennas, greatly enlarging the area coverage available to the many nontechnical experimenters using CTS for their own needs. A practical application of these technologies is now in development for operational broadcasting services in Japan.

  9. Strategy and Space for Broadcasting Facilities

    DEFF Research Database (Denmark)

    Jensen, Per Anker

    2006-01-01

    The paper is based on results from an ongoing research project on space strategies and building values, which in-cludes a major case study of the development of facilities for the Danish Broadcasting Corporation over time. The focus is to identify, how different space strategies have been...

  10. A Stochastic Broadcast Pi-Calculus

    DEFF Research Database (Denmark)

    Song, Lei; Nielson, Flemming; Nielsen, Bo Friis

    2011-01-01

    In this paper we propose a stochastic broadcast PI-calculus which can be used to model server-client based systems where synchronization is always governed by only one participant. Therefore, there is no need to determine the joint synchronization rates. We also take immediate transitions into...

  11. A special broadcast of CERN's Video news

    CERN Multimedia

    2003-01-01

    A special edition of CERN's video news giving a complete update on the LHC project is to be broadcast in the Main Auditorium. After your lunch make a small detour to the Main Auditorium, where you see the big picture. On 14, 15 and 16 May, between 12:30 and 14:00, a special edition of CERN's video news bulletin will be broadcast in the Main Auditorium. You will have the chance get up-to-date on the LHC project and its experiments. With four years to go before the first collisions in the LHC, the LHC Project Leader Lyn Evans will present a status report on the construction of the accelerator. The spokesmen of the five LHC experiments (ALICE, ATLAS, CMS, LHCb and TOTEM) will explain how the work is going and what the state of play will be in four years' time. This special video news broadcast is the result of collaboration between the CERN Audiovisual Service, the Photo Service and the External communication section. The broadcast will begin with a brand-new programme title sequence. And just as in the real c...

  12. Television Broadcasting for Rural Development in Niger.

    Science.gov (United States)

    Hukill, Mark A.

    Communications policy and planning were investigated through the Republic of Niger's television service, Tele-Sahel, a state-owned autonomous service with a mandate to provide programs for rural development. In order to understand the context within which Tele-Sahel operates, the following topics related to television broadcasting in Niger were…

  13. A Broadcast Channel Assignment Mechanism based on The Broadcast Tree for Multi-radio Multi-channel Wireless Mesh Networks

    Science.gov (United States)

    Xia, Yan; Zeng, Yingzhi

    2016-02-01

    This paper proposed a broadcast Channel Assignment Mechanism on base of optimized Broadcast Tree for wireless Mesh network (WMN), which is created by Branch and Bound Method. The simulations show that our algorithm not only reduces the broadcast redundancy but also avoids the potential channel interferences produced by unnecessary relay nodes.

  14. Analysis and Implement of Broadcast Program Monitoring Data

    Directory of Open Access Journals (Sweden)

    Song Jin Bao

    2016-01-01

    Full Text Available With the rapid development of the radio and TV industry and the implementation of INT (the integration of telecommunications networks, cable TV networks and the Internet, the contents of programs and advertisements is showing massive, live and interactive trends. In order to meet the security of radio and television, the broadcast of information have to be controlled and administered. In order to master the latest information of public opinion trends through radio and television network, it is necessary research the specific industry applications of broadcast program monitoring. In this paper, the importance of broadcast monitoring in public opinion analysis is firstly analysed. The monitoring radio and television programs broadcast system architecture is proposed combining with the practice, focusing on the technical requirements and implementation process of program broadcast, advertisement broadcast and TV station broadcast monitoring. The more efficient information is generated through statistical analysis, which provides data analysis for radio and television public opinion analysis.

  15. Mixed qubits cannot be universally broadcast

    International Nuclear Information System (INIS)

    We show that no universal quantum cloning machine exists that can broadcast an arbitrary mixed qubit with a constant fidelity. Based on this result, we investigate the dependent quantum cloner in the sense that some parameter of the input qubit ρs(θ,ω,λ) is regarded as constant in the fidelity. For the case of constant ω, we establish the 1→2 optimal symmetric dependent cloner with a fidelity 1/2. It is also shown that the 1→M optimal quantum cloning machine for pure qubits is also optimal for mixed qubits, when λ is the unique parameter in the fidelity. For general N→M broadcasting of mixed qubits, the situation is very different

  16. Metadata for the description of broadcast assets

    DEFF Research Database (Denmark)

    Efthimiadis, Efthimis N.; Mai, Jens Erik; Burrows, Paul E.;

    2003-01-01

    . The concerns for Media Asset Management, human and technical, are myriad. Media Asset Management is the framework upon which many of the largest technology projects will be built, including the future interconnection system between and among CPB member stations. It is CPB's hope that its licensees and...... broadcasters and media companies to deal with the creationand maintenance of metadata, indexing and controlled vocabularies required for effective Media Asset Management of broadcasts. Panelist will provide perspectives of their organization or project, for example, the CPB's PB Core metadata element set......, which is currently under development; the Disney Nomenclature Registry at Disney Corporation; and the ViDe (video access group) MPEG-7 and Dublin Core mapping....

  17. Improving broadcast channel rate using hierarchical modulation

    CERN Document Server

    Meric, Hugo; Arnal, Fabrice; Lesthievent, Guy; Boucheret, Marie-Laure

    2011-01-01

    We investigate the design of a broadcast system where the aim is to maximise the throughput. This task is usually challenging due to the channel variability. Forty years ago, Cover introduced and compared two schemes: time sharing and superposition coding. The second scheme was proved to be optimal for some channels. Modern satellite communications systems such as DVB-SH and DVB-S2 mainly rely on time sharing strategy to optimize throughput. They consider hierarchical modulation, a practical implementation of superposition coding, but only for unequal error protection or backward compatibility purposes. We propose in this article to combine time sharing and hierarchical modulation together and show how this scheme can improve the performance in terms of available rate. We present the gain on a simple channel modeling the broadcasting area of a satellite. Our work is applied to the DVB-SH standard, which considers hierarchical modulation as an optional feature.

  18. Broadcast Communication by System Frequency Modulation

    OpenAIRE

    Douglass, Philip James; You, Shi; Heussen, Kai

    2012-01-01

    Load controllers available today can measure AC system frequency and react to frequency deviations. A system operator can communicate to frequency sensitive loads by changing the set-points of the system’s dispatchable frequency regulation resources. Explicitly signaling system state by generating off-nominal system frequency values is a novel narrowband broadcast communications channel between system operators and frequency sensitivedistributed energy resources (FS-DER). The feasibility of t...

  19. Governance of Public Broadcasters and Television Consumption

    OpenAIRE

    Christine Benesch

    2010-01-01

    Recent literature emphasizes the importance of independent media for beneficial political, economic and social outcomes. I investigate how media consumers react to state ownership of TV stations and the regulation and financing of these public broadcasters. The empirical results show that a higher share of state-owned TV stations is associated with lower TV consumption, both in total and with regard to news and information only. The negative effects of state ownership are larger when the publ...

  20. The Time Efficient Security for Broadcast Networks

    OpenAIRE

    Kamaksi Prasad V2; Ayachit, N. H.; Santosh L Deshpande1

    2008-01-01

    The audit ability and security of the broadcast network and security needs to be enhanced. This article is proposing the security solutions for such networks that are cost effective. The solution also takes care of the reduction of effective bandwidth-delay product. The improvement in terms of a cost effective comparator improves the efficiency and security of such networks. The threats like Eavesdropping, Interception and modification of transmitted data, Spoofing, Denial of service (DoS), F...

  1. The Political Independence of Public Service Broadcasters

    OpenAIRE

    Hanretty, Chris

    2009-01-01

    Defense Date: 18/12/2009 Examining Board: Adrienne Héritier (EUI/RSCAS), Anker Brink Lund (Copenhagen Business School), Gianpietro Mazzoleni (University of Milan) (External Co-Supervisor), Alexander H. Trechsel (EUI) (Supervisor) François Mény Prize for the Best Comparative Study of Political Institutions, 2010. Version of thesis published as a book "HANRETTY, Chris, Public Broadcasting and Political Interference, Abingdon/New York, Routledge, 2011, Routledge Research ...

  2. Reliable Broadcast Contribution over the Public Internet

    OpenAIRE

    Markman, Martin Alexander Jarnfeld; Tokheim, Stian

    2012-01-01

    Broadcast contribution is point-point media transfer from recording sites to local editing studios, between studio facilities and to distribution centers. The contribution phase has strict Quality of Service (QoS) requirements to reliability and bandwidth - any error might degrade end users Quality of Experience (QoE) in the consecutive distribution phase. Dedicated IP contribution networks has become the preferred technology for contribution from content creation sites. Occasionally, however...

  3. Independence between Korean Government and Broadcasting Industry

    OpenAIRE

    Yi-Chih Huang

    2015-01-01

    The recent success of Hallyu (Korean Wave) first driven by the spread of TV dramas received academic attention for its effective national policies. However, little is known about how national policy is implemented and local industry capacity is maintained even after market opening. Therefore, the aim of this paper attempts to explore how and why state governs broadcasting industry effectively. Historical institutionalism has been used to explain the way that Korean governments had taken to co...

  4. Automatic event detection for tennis broadcasting

    OpenAIRE

    Enebral González, Javier

    2011-01-01

    Within the image digital processing framework, this thesis is situated in the automatic content indexation field. Specifically during the project, different methods and techniques will be developed in order to achieve event detection for broadcasting tennis videos. Audiovisual indexation consists in the generation of descriptive tags based on the existing audiovisual data. All these tags are used to search the desired material in an efficient way. Televisions and other entities are l...

  5. Relation between 'no broadcasting' for noncommuting states and 'no local broadcasting' for quantum correlations

    International Nuclear Information System (INIS)

    The no-broadcasting theorem, first established by Barnum et al. [Phys. Rev. Lett. 76, 2818 (1996)], states that a set of quantum states can be broadcast if and only if it constitutes a commuting family. Quite recently, Piani et al. [Phys. Rev. Lett. 100, 090502 (2008)] showed, by using an ingenious and sophisticated method, that the correlations in a single bipartite state can be locally broadcast if and only if the state is effectively a classical one (i.e., the correlations therein are classical). In this Brief Report, under the condition of nondegenerate spectrum, we provide an alternative and significantly simpler proof of the latter result based on the original no-broadcasting theorem and the monotonicity of the quantum relative entropy. This derivation motivates us to conjecture the equivalence between these two elegant yet formally different no-broadcasting theorems and indicates a subtle and fundamental issue concerning spectral degeneracy which also lies at the heart of the conflict between the von Neumann projection postulate and the Lueders ansatz for quantum measurements. This relation not only offers operational interpretations for commutativity and classicality but also illustrates the basic significance of noncommutativity in characterizing quantumness from the informational perspective.

  6. The Use of Television Format Adaptation in Denmark: Public Service Broadcasters Compared to Commercial Broadcasters

    DEFF Research Database (Denmark)

    Jensen, Pia Majbritt

    The use of television formats, developed in one market and sold internationally for local adaptation, has become a widespread practice in international television (Oren & Shahaf 2012). In what could be termed a case of ‘creative destruction’ (Schumpeter 1942), the format trade’s acceleration has...... brought about major changes in both production and scheduling. This paper evaluates the impact that format adaptation has had in Denmark on public service broadcasters (PSBs) compared to commercial broadcasters. To illustrate transnational differences, references are made to Germany and Australia. First......, a quantitative analysis of PSB and commercial schedules in Denmark is presented to establish the extent to which PSBs have employed formats between 2000 and 2012, and how this compares with commercial broadcasters. Secondly, a qualitative analysis looks into genre and the nature of the individual...

  7. Impacts of Mobile Technology on Nigeria Broadcasting Communication Policy

    OpenAIRE

    I. W. Udomisor; S. P. E. Akoje; Emem I. Udomisor

    2015-01-01

    The broadcast media of communication in Nigeria has witnessed changes over the years. It started as strictly a state controlled media based on the assumption that the airwave is a public commodity that must be orderly utilized. But after the deregulation of the industry, additional restrictions on the use of the media became necessary and these became part of Nigeria broadcasting communication policy (or code) guiding the conduct of broadcasters. This paper explores instances of apparatus con...

  8. The regulation of television sports broadcasting: a comparative analysis

    OpenAIRE

    Smith, P.; Evens, T.; Iosifidis, P.

    2015-01-01

    Based on seven different sports broadcasting markets (Australia, Brazil, Italy, India, South Africa, United Kingdom and the United States), this article provides a comparative analysis of the regulation of television sports broadcasting. The article examines how contrasting perspectives on television and sport – economic and sociocultural – have been reflected in two main approaches to the regulation of sports broadcasting, namely competition law and major events legislation. The results of t...

  9. Europe - on Air : Interwar Projects for Radio Broadcasting

    OpenAIRE

    Lommers, Suzanne

    2012-01-01

    Radio broadcasting may seem old-fashioned nowadays, but early radio infrastructures and programs in Europe were the real social media of their time. They laid the foundation for how we experience European unification and global interconnectedness today. This timely volume takes you on a tour through the early days of broadcasting. Rarely studied sources from international organizations reveal a wide variety of new actors, activities, and debates that jointly shaped broadcasting and society in...

  10. Static analysis of topology-dependent broadcast networks

    DEFF Research Database (Denmark)

    Nanz, Sebastian; Nielson, Flemming; Nielson, Hanne Riis

    2010-01-01

    Broadcast semantics poses significant challenges over point-to-point communication when it comes to formal modelling and analysis. Current approaches to analysing broadcast networks have focused on fixed connectivities, but this is unsuitable in the case of wireless networks where the dynamically...... process calculus with asynchronous local broadcast. Furthermore, we use model checking based on a 3-valued temporal logic to distinguish network behaviour which differs under changing connectivity patterns. (C) 2009 Elsevier Inc. All rights reserved....

  11. Adaptive Normalisation of Programme Loudness in Audiovisual Broadcasts

    OpenAIRE

    Molinder, Herman

    2016-01-01

    Loudness is a subjective measure of how loud an audio signal is perceived. Due to commercial pressures loudness has been exploited in broadcasts to attract and reach viewers and listeners. By means of signal processing it is possible to increase the loudness of an audio signal and still meet the contemporary legislated signal levelling requirements. With an aspiration to achieve equal average loudness between all broadcasting programmes the European Broadcasting Union have issued a standard t...

  12. Five 1951 BBC Broadcasts on Automatic Calculating Machines

    OpenAIRE

    Jones, Allan

    2004-01-01

    In May and June 1951, five leading figures of British computing – Douglas Hartree, Max Newman, Alan Turing, Frederic ('Freddie') Williams, and Maurice Wilkes – spoke about their work on BBC radio. This article examines surviving texts of their broadcasts, and the speakers' principal points are summarized through quotations and commentary. The broadcasts are placed in the context of contemporary developments in computing and the particular BBC service on which they were broadcast.

  13. Automatic Dependent Surveillance - Broadcast Verification and Validation Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Automatic Dependent Surveillance ? Broadcast (ADS-B) is an emerging Communications, Navigation, and Surveillance (CNS) technology that will vastly expand the state...

  14. Histories of Public Service Broadcasters on the Web

    DEFF Research Database (Denmark)

    This edited volume details multiple and dynamic histories of relations between public service broadcasters and the World Wide Web. What does it mean to be a national broadcaster in a global communications environment? What are the commercial and public service pressures that were brought to bear...... when public service broadcasters implemented web services? How did “one- to-many” broadcasters adapt to the “many-to-many” medium of the internet? The thematic or- ganisation of this collection addresses such major issues, while each chapter offers a particular historical account of relations between...

  15. Public and Private Activity in Commercial TV Broadcasting

    DEFF Research Database (Denmark)

    Olai Hansen, Bodil; Keiding, Hans

    2006-01-01

    We consider a model of commercial television market, where private broadcasters coexist with a public television broadcaster. Assuming that the public TV station follows a policy of Ramsey pricing whereas the private stations are profit maximizers, we consider the equilibria in this market and...... compare with a situation where the public station is privatized and acts as another private TV broadcaster. A closer scrutiny of the market for commercial television leads to a distinction between target rating points, which are the prime unit of account in TV advertising, and net coverage, which is the.......Keywords: TV broadcasting, imperfect competition, Ramsey pricing, welfare comparison.JEL classification: L11, L82, L33...

  16. A broadcast engineering tutorial for non-engineers

    CERN Document Server

    Pizzi, Skip

    2014-01-01

    A Broadcast Engineering Tutorial for Non-Engineers is the leading publication on the basics of broadcast technology. Whether you are new to the industry or do not have an engineering background, this book will give you a comprehensive primer of television, radio, and digital media relating to broadcast-it is your guide to understanding the technical world of radio and television broadcast engineering. It covers all the important topics such as DTV, IBOC, HD, standards, video servers, editing, electronic newsrooms, and more.

  17. Energy Efficient Probabilistic Broadcasting for Mobile Ad-Hoc Network

    Science.gov (United States)

    Kumar, Sumit; Mehfuz, Shabana

    2016-08-01

    In mobile ad-hoc network (MANETs) flooding method is used for broadcasting route request (RREQ) packet from one node to another node for route discovery. This is the simplest method of broadcasting of RREQ packets but it often results in broadcast storm problem, originating collisions and congestion of packets in the network. A probabilistic broadcasting is one of the widely used broadcasting scheme for route discovery in MANETs and provides solution for broadcasting storm problem. But it does not consider limited energy of the battery of the nodes. In this paper, a new energy efficient probabilistic broadcasting (EEPB) is proposed in which probability of broadcasting RREQs is calculated with respect to remaining energy of nodes. The analysis of simulation results clearly indicate that an EEPB route discovery scheme in ad-hoc on demand distance vector (AODV) can increase the network lifetime with a decrease in the average power consumption and RREQ packet overhead. It also decreases the number of dropped packets in the network, in comparison to other EEPB schemes like energy constraint gossip (ECG), energy aware gossip (EAG), energy based gossip (EBG) and network lifetime through energy efficient broadcast gossip (NEBG).

  18. MBMS—IP Multicast/Broadcast in 3G Networks

    Directory of Open Access Journals (Sweden)

    Markus Kampmann

    2009-01-01

    Full Text Available In this article, the Multimedia Broadcast and Multicast Service (MBMS as standardized in 3GPP is presented. With MBMS, multicast and broadcast capabilities are introduced into cellular networks. After an introduction into MBMS technology, MBMS radio bearer realizations are presented. Different MBMS bearer services like broadcast mode, enhanced broadcast mode and multicast mode are discussed. Streaming and download services over MBMS are presented and supported media codecs are listed. Service layer components as defined in Open Mobile Alliance (OMA are introduced. For a Mobile TV use case capacity improvements achieved by MBMS are shown. Finally, evolution of MBMS as part of 3GPP standardization is presented.

  19. Scheduling Broadcasts in a Network of Timelines

    KAUST Repository

    Manzoor, Emaad A.

    2015-05-12

    Broadcasts and timelines are the primary mechanism of information exchange in online social platforms today. Services like Facebook, Twitter and Instagram have enabled ordinary people to reach large audiences spanning cultures and countries, while their massive popularity has created increasingly competitive marketplaces of attention. Timing broadcasts to capture the attention of such geographically diverse audiences has sparked interest from many startups and social marketing gurus. However, formal study is lacking on both the timing and frequency problems. In this thesis, we introduce, motivate and solve the broadcast scheduling problem of specifying the timing and frequency of publishing content to maximise the attention received. We validate and quantify three interacting behavioural phenomena to parametrise social platform users: information overload, bursty circadian rhythms and monotony aversion, which is defined here for the first time. Our analysis of the influence of monotony refutes the common assumption that posts on social network timelines are consumed piecemeal independently. Instead, we reveal that posts are consumed in chunks, which has important consequences for any future work considering human behaviour over social network timelines. Our quantification of monotony aversion is also novel, and has applications to problems in various domains such as recommender list diversification, user satiation and variety-seeking consumer behaviour. Having studied the underlying behavioural phenomena, we link schedules, timelines, attention and behaviour by formalising a timeline information exchange process. Our formulation gives rise to a natural objective function that quantifies the expected collective attention an arrangement of posts on a timeline will receive. We apply this formulation as a case-study on real-data from Twitter, where we estimate behavioural parameters, calculate the attention potential for different scheduling strategies and, using the

  20. The Time Efficient Security for Broadcast Networks

    Directory of Open Access Journals (Sweden)

    Kamaksi Prasad V2

    2008-04-01

    Full Text Available The audit ability and security of the broadcast network and security needs to be enhanced. This article is proposing the security solutions for such networks that are cost effective. The solution also takes care of the reduction of effective bandwidth-delay product. The improvement in terms of a cost effective comparator improves the efficiency and security of such networks. The threats like Eavesdropping, Interception and modification of transmitted data, Spoofing, Denial of service (DoS, Free–loading, and Accidental threats are some of the threats addressed in this article.

  1. Digital terrestrial television broadcasting technology and system

    CERN Document Server

    2015-01-01

    Now under massive deployment worldwide, digital terrestrial television broadcasting (DTTB) offers one of the most attractive ways to deliver digital TV over the VHF/UHF band. Written by a team of experts for specialists and non-specialists alike, this book serves as a comprehensive guide to DTTB. It covers the fundamentals of channel coding and modulation technologies used in DTTB, as well as receiver technology for synchronization, channel estimation, and equalization. It also covers the recently introduced Chinese DTTB standard, using the SFN network in Hong Kong as an example.

  2. Reliable Delay Constrained Multihop Broadcasting in VANETs

    Directory of Open Access Journals (Sweden)

    Koubek Martin

    2010-01-01

    Full Text Available Vehicular communication is regarded as a major innovative feature for in-car technology. While improving road safety is unanimously considered the major driving factor for the deployment of Intelligent Vehicle Safety Systems, the challenges relating to reliable multi-hop broadcasting are exigent in vehicular networking. In fact, safety applications must rely on very accurate and up-to-date information about the surrounding environment, which in turn requires the use of accurate positioning systems and smart communication protocols for exchanging information. Communications protocols for VANETs must guarantee fast and reliable delivery of information to all vehicles in the neighbourhood, where the wireless communication medium is shared and highly unreliable with limited bandwidth. In this paper, we focus on mechanisms that improve the reliability of broadcasting protocols, where the emphasis is on satisfying the delay requirements for safety applications. We present the Pseudoacknowledgments (PACKs scheme and compare this with existing methods over varying vehicle densities in an urban scenario using the network simulator OPNET.

  3. Structuring Broadcast Audio for Information Access

    Science.gov (United States)

    Gauvain, Jean-Luc; Lamel, Lori

    2003-12-01

    One rapidly expanding application area for state-of-the-art speech recognition technology is the automatic processing of broadcast audiovisual data for information access. Since much of the linguistic information is found in the audio channel, speech recognition is a key enabling technology which, when combined with information retrieval techniques, can be used for searching large audiovisual document collections. Audio indexing must take into account the specificities of audio data such as needing to deal with the continuous data stream and an imperfect word transcription. Other important considerations are dealing with language specificities and facilitating language portability. At Laboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur (LIMSI), broadcast news transcription systems have been developed for seven languages: English, French, German, Mandarin, Portuguese, Spanish, and Arabic. The transcription systems have been integrated into prototype demonstrators for several application areas such as audio data mining, structuring audiovisual archives, selective dissemination of information, and topic tracking for media monitoring. As examples, this paper addresses the spoken document retrieval and topic tracking tasks.

  4. Structuring Broadcast Audio for Information Access

    Directory of Open Access Journals (Sweden)

    Jean-Luc Gauvain

    2003-02-01

    Full Text Available One rapidly expanding application area for state-of-the-art speech recognition technology is the automatic processing of broadcast audiovisual data for information access. Since much of the linguistic information is found in the audio channel, speech recognition is a key enabling technology which, when combined with information retrieval techniques, can be used for searching large audiovisual document collections. Audio indexing must take into account the specificities of audio data such as needing to deal with the continuous data stream and an imperfect word transcription. Other important considerations are dealing with language specificities and facilitating language portability. At Laboratoire d′Informatique pour la Mécanique et les Sciences de l′Ingénieur (LIMSI, broadcast news transcription systems have been developed for seven languages: English, French, German, Mandarin, Portuguese, Spanish, and Arabic. The transcription systems have been integrated into prototype demonstrators for several application areas such as audio data mining, structuring audiovisual archives, selective dissemination of information, and topic tracking for media monitoring. As examples, this paper addresses the spoken document retrieval and topic tracking tasks.

  5. Reliable Delay Constrained Multihop Broadcasting in VANETs

    Science.gov (United States)

    Koubek, Martin; Rea, Susan; Pesch, Dirk

    2010-12-01

    Vehicular communication is regarded as a major innovative feature for in-car technology. While improving road safety is unanimously considered the major driving factor for the deployment of Intelligent Vehicle Safety Systems, the challenges relating to reliable multi-hop broadcasting are exigent in vehicular networking. In fact, safety applications must rely on very accurate and up-to-date information about the surrounding environment, which in turn requires the use of accurate positioning systems and smart communication protocols for exchanging information. Communications protocols for VANETs must guarantee fast and reliable delivery of information to all vehicles in the neighbourhood, where the wireless communication medium is shared and highly unreliable with limited bandwidth. In this paper, we focus on mechanisms that improve the reliability of broadcasting protocols, where the emphasis is on satisfying the delay requirements for safety applications. We present the Pseudoacknowledgments (PACKs) scheme and compare this with existing methods over varying vehicle densities in an urban scenario using the network simulator OPNET.

  6. Team Automata for Security Analysis of Multicast/Broadcast Communication

    NARCIS (Netherlands)

    Beek, ter Maurice; Lenzini, Gabriele; Petrocchi, Marinella; Busi, N.; Gorrieri, R.; Martinelli, F.

    2003-01-01

    We show that team automata (TA) are well suited to model secure multicast/broadcast communication with possible packet loss. This is a consequence of the natural way in which one-to-many (one-to-all) transmissions typical of multicast (broadcast) sessions can be modelled as communications between th

  7. 78 FR 12622 - Radio Broadcasting Services; Greenup, IL

    Science.gov (United States)

    2013-02-25

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Greenup, IL AGENCY: Federal Communications Commission... 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. ]...

  8. 76 FR 36384 - Radio Broadcasting Services; Brackettville, TX

    Science.gov (United States)

    2011-06-22

    ... Making proposed the deletion of vacant Channel 234A at Brackettville. See 75 FR 4037, published January... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Brackettville, TX AGENCY: Federal Communications..., see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting....

  9. 78 FR 12010 - Radio Broadcasting Services; Pearsall, Texas

    Science.gov (United States)

    2013-02-21

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Pearsall, Texas AGENCY: Federal Communications....415 and 1.420. List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal...

  10. 77 FR 62481 - Radio Broadcasting Services; Crownpoint, NM

    Science.gov (United States)

    2012-10-15

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Crownpoint, NM AGENCY: Federal Communications....415 and 1.420. List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal...

  11. 77 FR 52292 - Radio Broadcasting Services; Greenup, IL

    Science.gov (United States)

    2012-08-29

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Greenup, IL AGENCY: Federal Communications Commission....415 and 1.420. List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal...

  12. 77 FR 43216 - Radio Broadcasting Services; Randsburg, CA

    Science.gov (United States)

    2012-07-24

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Randsburg, CA AGENCY: Federal Communications....415 and 1.420. List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal...

  13. 75 FR 52872 - Radio Broadcasting Services; Blythe, CA

    Science.gov (United States)

    2010-08-30

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Blythe, CA AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: The Audio Division, at the request of Prescott Valley Radio Broadcasting... Congressional Review Act, see U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio...

  14. 77 FR 76936 - Radio Broadcasting Services; Tignall, GA

    Science.gov (United States)

    2012-12-31

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Tignall, GA AGENCY: Federal Communications Commission..., see U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting....

  15. 75 FR 76294 - Radio Broadcasting Services; Fairbanks, AK

    Science.gov (United States)

    2010-12-08

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Fairbanks, AK AGENCY: Federal Communications... Review Act, see U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. 0...

  16. School Broadcasting in the United Kingdom: An Exploratory History

    Science.gov (United States)

    Crook, David

    2007-01-01

    In the United Kingdom, television for schools is 50 years old in 2007. The anniversary provides a reason to undertake an exploratory history of school broadcasting, an area that has received very little attention from historians of British education. The first part of this article examines the origins of school radio broadcasting, focusing…

  17. 75 FR 71044 - Radio Broadcasting Services; Onekama, MI

    Science.gov (United States)

    2010-11-22

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Onekama, MI AGENCY: Federal Communications Commission... CFR Part 73 Radio, Radio broadcasting. 0 For the reasons discussed in the preamble, the...

  18. 76 FR 12292 - Radio Broadcasting Services; Kualapuu, HI

    Science.gov (United States)

    2011-03-07

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Kualapuu, HI AGENCY: Federal Communications Commission..., see U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. For the...

  19. 78 FR 32 - Radio Broadcasting Services; Westley, CA

    Science.gov (United States)

    2013-01-02

    ... 27, 2012 decision. See 77 FR 50053, published August 20, 2012. The full text of this Commission... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Westley, CA AGENCY: Federal Communications Commission.... 8. List of Subjects in 47 CFR Part 73 Radio, Radio broadcasting. Federal Communications...

  20. College Students' Expectations for Entry-Level Broadcast Positions.

    Science.gov (United States)

    Funkhouser, Edward; Savage, Arthur L., Jr.

    1987-01-01

    Investigates whether entry-level, college-educated broadcast employees have job expectations that broadcast managers do not understand. Indicates that students' desire for rapid professional advancement has increased between 1979 and 1980. Revealed that managers accurately perceived the rank order students assigned to the 20 outcomes, but…

  1. A Novel Broadcast Scheme DSR-based Mobile Adhoc Networks

    Directory of Open Access Journals (Sweden)

    Muneer Bani Yassein

    2016-04-01

    Full Text Available Traffic classification seeks to assign packet flows to an appropriate quality of service (QoS. Despite many studies that have placed a lot of emphasis on broadcast communication, broadcasting in MANETs is still a problematic issue. Due to the absence of the fixed infrastructure in MANETs, broadcast is an essential operation for all network nodes. Although the blind flooding is the simplest broadcasting technique, it is inefficient and lacks resource utilization efficiency. One of the proposed schemes to mitigate the blind flooding deficiency is the counter based broadcast scheme that depends on the number of received duplicate packets between the node and its neighbors, where the node compares the duplicate packet itself and each neighbor node that previously re-broadcasted a packet. Due to the fact that existing counter-based schemes are mainly based on the fixed counter based approach, these schemes are not efficient in different operating conditions. Thus, unlike existing studies, this paper proposes a dynamic counter based threshold value and examines its effectiveness under the Dynamic Source Routing Protocol (DSR which is one of the well-known on-demand routing protocols. Specifically, we develop in this paper a new counter based broadcast algorithm under the umbrella of the DSR, namely, Inspired Counter Based Broadcasting (DSR-ICB. Using various simulation experiments, DSR-ICB has shown good performance especially in terms of delay and the number of redundant packets.

  2. 77 FR 6481 - Television Broadcasting Services; Lincoln, NE

    Science.gov (United States)

    2012-02-08

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Lincoln, NE AGENCY: Federal Communications... rulemaking filed by Lincoln Broadcasting, LLC (``LBL''), licensee of KFXL-TV, channel 51, Lincoln, Nebraska... on the acceptance of full power television rulemaking petitions requesting channel substitutions...

  3. 75 FR 19907 - Television Broadcasting Services; Beaumont, TX

    Science.gov (United States)

    2010-04-16

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Beaumont, TX AGENCY: Federal Communications... Broadcasting of Texas, the licensee of KFDM(TV), channel 21, Beaumont, Texas, requesting the substitution of... Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television,...

  4. 76 FR 66250 - Television Broadcasting Services; Cleveland, OH

    Science.gov (United States)

    2011-10-26

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Cleveland, OH AGENCY: Federal Communications... CFR 1.415 and 1.420. List of Subjects in 47 CFR Part 73 Television, Television broadcasting. Federal... Community Television of Ohio License, LLC (``Community Television''), the licensee of station WJW...

  5. 78 FR 78318 - Television Broadcasting Services; Oklahoma City, Oklahoma

    Science.gov (United States)

    2013-12-26

    ...The Commission has before it a petition for rulemaking filed by Family Broadcasting Group, Inc. (``Family Broadcasting''), the licensee of station KSBI(TV), channel 51, Oklahoma City, Oklahoma, requesting the substitution of channel 23 for channel 51 at Oklahoma City. While the Commission instituted a freeze on the acceptance of full power television rulemaking petitions requesting channel......

  6. 76 FR 9991 - Television Broadcasting Services; Kalispell, MT

    Science.gov (United States)

    2011-02-23

    ... From the Federal Register Online via the Government Publishing Office ] FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Kalispell, MT AGENCY: Federal Communications... CFR 1.415 and 1.420. List of Subjects in 47 CFR Part 73 Television, Television broadcasting. For...

  7. Loops of Spoken Language i Danish Broadcasting Corporation News

    DEFF Research Database (Denmark)

    le Fevre Jakobsen, Bjarne

    2012-01-01

    The tempo of Danish television news broadcasts has changed markedly over the past 40 years, while the language has essentially always been conservative, and remains so today. The development in the tempo of the broadcasts has gone through a number of phases from a newsreader in a rigid structure...... tempo of programmes, and we will anchor television news in a wider context....

  8. 75 FR 13236 - Television Broadcasting Services; Oklahoma City, OK

    Science.gov (United States)

    2010-03-19

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Oklahoma City, OK AGENCY: Federal Communications... Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television, Television broadcasting. 0 For the reasons discussed in the preamble, the Federal Communications Commission amends 47...

  9. Mobile Broadcast DRM Based on User Identity Card

    Directory of Open Access Journals (Sweden)

    Byung-Rae Lee

    2007-11-01

    Full Text Available The current mobile broadcast systems do not provide efficient solution for consumption of service and content based on the user identity card such as a smartcard. This prevents users from consuming broadcast service and contents independent of a specific terminal (e.g., the one used for registration or purchase. To provide usage of broadcast services based on the user identity card, mutual authentication needs to be established among the service provider, the terminal, and the user identity card whenever the terminal is changed. The crucial element for this is assuring the service provider, the terminal, and the user identity card by authenticating each entity to the other entities. In this paper, we propose the new authentication scheme, which provides efficient scheme for three kinds of mutual authentications among the service provider, the terminal, and the user identity card. We also construct mobile broadcast DRM system based on the proposed authentication scheme for consumption of broadcast services with multiple terminals.

  10. Research on the Safe Broadcasting of Television Program

    Directory of Open Access Journals (Sweden)

    Song Jin Bao

    2016-01-01

    Full Text Available The existing way of broadcasting and television monitoring has a lot of problems in China. On the basis of the signal technical indicators monitoring in the present broadcasting and television monitoring system, this paper further extends the function of the monitoring network in order to broaden the services of monitoring business and improve the effect and efficiency of monitoring work. The problem of identifying video content and channel in television and related electronic media is conquered at a low cost implementation way and the flexible technology mechanism. The coverage for video content and identification of the channel is expanded. The informative broadcast entries are generated after a series of video processing. The value of the numerous broadcast data is deeply excavated by using big data processing in order to realize a comprehensive, objective and accurate information monitoring for the safe broadcasting of television program.

  11. AHBP: An Efficient Broadcast Protocol for Mobile Ad Hoc Networks

    Institute of Scientific and Technical Information of China (English)

    彭伟; 卢锡城

    2001-01-01

    Broadcast is an important operation in many network protocols. It is utilized to discover routes to unknown nodes in mobile ad hoc networks (MANETs) and is the key factor in scaling on-demand routing protocols to large networks. This paper presents the Ad Hoc Broadcast Protocol (AHBP) and its performance is discussed. In the protocol, messages are only rebroadcast by broadcast relay gateways that constitute a connected dominating set of the network. AHBP can efficiently reduce the redundant messages which make flooding-like protocols perform badly in large dense networks. Simulations are conducted to determine the performance characteristics of the protocol. The simulation results have shown excellent reduction of broadcast redundancy with AHBP. It also contributes to a reduced level of broadcast collision and congestion.

  12. 47 CFR 0.434 - Data bases and lists of authorized broadcast stations and pending broadcast applications.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Data bases and lists of authorized broadcast stations and pending broadcast applications. 0.434 Section 0.434 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL COMMISSION ORGANIZATION General Information Lists Containing Information Compiled by the Commission § 0.434 Data bases...

  13. TV interpreting in Germany: the television broadcasting company ARTE in comparison to public broadcasting companies

    OpenAIRE

    Andres, Dörte; Fünfer, Sarah

    2011-01-01

    TV interpreting is a special form of interpreting for several reasons. Not only the challenges interpreters are faced with, but also the expectations towards their performance as well as the technology involved differ greatly from conventional conference interpreting. Unlike public broadcasting companies in Germany, the European culture channel ARTE (Association Relative à la Télévision Européenne) works with interpreters on a regular basis and has its own language service. A c...

  14. Efficient broadcast on random geometric graphs

    Energy Technology Data Exchange (ETDEWEB)

    Bradonjic, Milan [Los Alamos National Laboratory; Elsasser, Robert [UNIV OF PADERBORN; Friedrich, Tobias [INTERNATIONAL COMPUTER SCI.; Sauerwald, Thomas [INTERNATIONAL COMPUTER SCI.

    2009-01-01

    A Randon Geometric Graph (RGG) is constructed by distributing n nodes uniformly at random in the unit square and connecting two nodes if their Euclidean distance is at most r, for some prescribed r. They analyze the following randomized broadcast algorithm on RGGs. At the beginning, there is only one informed node. Then in each round, each informed node chooses a neighbor uniformly at random and informs it. They prove that this algorithm informs every node in the largest component of a RGG in {Omicron}({radical}n/r) rounds with high probability. This holds for any value of r larger than the critical value for the emergence of a giant component. In particular, the result implies that the diameter of the giant component is {Theta}({radical}n/r).

  15. Broadcasting a message in a parallel computer

    Energy Technology Data Exchange (ETDEWEB)

    Archer, Charles J; Faraj, Ahmad A

    2013-04-16

    Methods, systems, and products are disclosed for broadcasting a message in a parallel computer that includes: transmitting, by the logical root to all of the nodes directly connected to the logical root, a message; and for each node except the logical root: receiving the message; if that node is the physical root, then transmitting the message to all of the child nodes except the child node from which the message was received; if that node received the message from a parent node and if that node is not a leaf node, then transmitting the message to all of the child nodes; and if that node received the message from a child node and if that node is not the physical root, then transmitting the message to all of the child nodes except the child node from which the message was received and transmitting the message to the parent node.

  16. Broadcast Communication by System Frequency Modulation

    DEFF Research Database (Denmark)

    Douglass, Philip James; You, Shi; Heussen, Kai

    2012-01-01

    Load controllers available today can measure AC system frequency and react to frequency deviations. A system operator can communicate to frequency sensitive loads by changing the set-points of the system’s dispatchable frequency regulation resources. Explicitly signaling system state by generating...... off-nominal system frequency values is a novel narrowband broadcast communications channel between system operators and frequency sensitive distributed energy resources (FS-DER). The feasibility of the proposed system is evaluated on an existing island power system in Denmark. This study shows that...... these constraints, the proposed system would allow operators to dispatch FS-DER in a robust manner, without using an external digital control channel. By dispatching FS-DER, their well known role as a power balancing resource can be expanded to include energy balancing services....

  17. Broadcasting a message in a parallel computer

    Energy Technology Data Exchange (ETDEWEB)

    Archer, Charles J; Faraj, Daniel A

    2014-11-18

    Methods, systems, and products are disclosed for broadcasting a message in a parallel computer that includes: transmitting, by the logical root to all of the nodes directly connected to the logical root, a message; and for each node except the logical root: receiving the message; if that node is the physical root, then transmitting the message to all of the child nodes except the child node from which the message was received; if that node received the message from a parent node and if that node is not a leaf node, then transmitting the message to all of the child nodes; and if that node received the message from a child node and if that node is not the physical root, then transmitting the message to all of the child nodes except the child node from which the message was received and transmitting the message to the parent node.

  18. Sales plan generation problem on TV broadcasting

    Directory of Open Access Journals (Sweden)

    Özlem Cosgun

    2016-07-01

    Full Text Available Major advertisers and/or advertisement agencies purchase hundreds of slots during a given broadcast period. Deterministic optimization approaches have been well developed for the problem of meeting client requests. The challenging task for the academic research currently is to address optimization problem under uncertainty. This paper is concerned with the sales plan generation problem when the audience levels of advertisement slots are random variables with known probability distributions. There are several constraints the TV networks must meet including client budget, product category and demographic information, plan weighting by week, program mix requirements, and the lengths of advertisement slots desired by the client. We formulate the problem as a chance constrained goal program and we demonstrate that it provides a robust solution with a user specified level of reliability.

  19. TV Broadcast Efficiency in 5G Networks from Subscriber Prospective

    KAUST Repository

    Lau, Chun Pong

    2015-12-06

    The flexibility of radio access network facilitated by 5G networks opens the gateway of deploying dynamic strategies for broadcasting TV channels in an efficient way. Currently, spectrum efficiency and bandwidth efficiency are the two common metrics measuring the efficiency of a system. These metrics assess the net bitrate for a unit of spectrum bandwidth. However, there is a lack of measurement, quantifying the effectiveness of a broadcasting strategy from the user perspective. In this paper, we introduce a novel measurement approach, called broadcast efficiency which considers the mobile user as a main reference. Broadcast efficiency is calculated as the number of served audiences per unit of radio resource. From numerical analysis, we show that broadcasting unpopular TV channels dramatically decreases the broadcast efficiency. This finding is evaluated by employing multiple distributions on the size of audience among TV channels. Furthermore, by conducting a real-life simulation, we discover that a high broadcast efficiency may result in a low percentage of served audiences if the audiences of TV channels are quite evenly distributed.

  20. Broadcast encryption: paving the road to practical content protection systems

    Science.gov (United States)

    Deen, G.; Ponceleon, D.; Leake, Donald, Jr.

    2009-02-01

    Broadcast encryption is a well established alternative to public key encryption for use in content protection systems. It offers significant performance benefits, as well as useful features such a one-to-many delivery, dynamic membership in the authorized receivers group, and provides anonymous access to content, permitting content protection systems to preserve privacy for consumers. Broadcast encryption has been successfully deployed to users for protection of commercial content on digital media such as flash memory devices and optical media for both standard-definition and high-definition content. In this paper, we present the Advanced Secure Content Cluster Technology which applies broadcast encryption to content protection for home media networks

  1. DMT of weighted Parallel Channels: Application to Broadcast Channel

    CERN Document Server

    Mroueh, Lina; Othman, Ghaya Rekaya-Ben; Belfiore, Jean-Claude

    2008-01-01

    In a broadcast channel with random packet arrival and transmission queues, the stability of the system is achieved by maximizing a weighted sum rate capacity with suitable weights that depend on the queue size. The weighted sum rate capacity using Dirty Paper Coding (DPC) and Zero Forcing (ZF) is asymptotically equivalent to the weighted sum capacity over parallel single-channels. In this paper, we study the Diversity Multiplexing Tradeoff (DMT) of the fading broadcast channel under a fixed weighted sum rate capacity constraint. The DMT of both identical and different parallel weighted MISO channels is first derived. Finally, we deduce the DMT of a broadcast channel using DPC and ZF precoders.

  2. Gate Fidelities, Quantum Broadcasting, and Assessing Experimental Realization

    CERN Document Server

    Lim, Hyang-Tag; Kim, Yong-Su; Kim, Yoon-Ho; Bae, Joonwoo

    2011-01-01

    We relate gate fidelities of experimentally realized quantum operations to the broadcasting property of their ideal operations, and show that the more parties a given quantum operation can broadcast to, the higher gate fidelities of its experimental realization are in general. This is shown by establishing the correspondence between two operational quantities, quantum state shareability and quantum broadcasting. This suggests that, to assess an experimental realization using gate fidelities, the worst case of realization such as noisy operations should be taken into account and then compared to obtained gate fidelities. In addition, based on the correspondence, we also translate results in quantum state shareability to their counterparts in quantum operations.

  3. Partially secret broadcasting, partially secret splitting with quantum entanglement

    International Nuclear Information System (INIS)

    In this paper, we propose a classical secret broadcasting and splitting joint protocol in a quantum scenario. With those genuinely entangled states, the boss can always broadcast some of his secrets and split some others to multi-receivers at the same time. The efficiency of the joint protocol is also compared with that of two separate ones which realise classical secret broadcasting and classical secret splitting respectively, and based on the comparison we can see the promising advantage of our joint protocol is that it can realise the two tasks more efficiently and more conveniently. (general)

  4. National association of broadcasters engineering handbook NAB engineering handbook

    CERN Document Server

    Jones, Graham A; Osenkowsky, Thomas G; Williams, Edmund A

    2013-01-01

    The NAB Engineering Handbook provides detailed information on virtually every aspect of the broadcast chain, from news gathering, program production and postproduction through master control and distribution links to transmission, antennas, RF propagation, cable and satellite. Hot topics covered include HD Radio, HDTV, 2 GHz broadcast auxiliary services, EAS, workflow, metadata, digital asset management, advanced video and audio compression, audio and video over IP, and Internet broadcasting. A wide range of related topics that engineers and managers need to understand are also covered, includ

  5. Direct broadcast of a sporting event as televisual cultural form

    Directory of Open Access Journals (Sweden)

    Jože Vogrinc

    2012-07-01

    Full Text Available Direct TV broadcasting of sport events is undoubtedly the focal point of interest of sport fans in sports media as well as of sponsors and investors responsible for the global mediatisation of popular sports. In this article, the centrality of direct TV broadcasts in the televisual coverage of sports, as well as in the presence of sports in new media in general is explained in the context of the impact of the mediatisation of sports upon cultural forms of TV coverage of sports. The complexity of these forms and its main features (the role of the commentator, the rules of editing, dramatisation and narrativisation in direct broadcasts are analysed.

  6. Broadcast Abstraction in a Stochastic Calculus for Mobile Networks

    DEFF Research Database (Denmark)

    Song, Lei; Godskesen, Jens Christian

    2012-01-01

    We introduce a continuous time stochastic broadcast calculus for mobile and wireless networks. The mobility between nodes in a network is modeled by a stochastic mobility function which allows to change part of a network topology depending on an exponentially distributed delay and a network...... topology constraint. We allow continuous time stochastic behavior of processes running at network nodes, e.g. in order to be able to model randomized protocols. The introduction of group broadcast and an operator to help avoid flooding allows us to define a novel notion of broadcast abstraction. Finally...

  7. Report of survey research of ways of using second generation practical broadcasting satellites

    Science.gov (United States)

    1982-01-01

    The state of development of satellite broadcasting in Japan, was determined was determined and recommendations were made regarding what organizations would use it and what kind of results could be forthcoming. The primary use at this stage is for television broadcasting, and the secondary use is for testing new broadcasting methods and for use by Japan's new Broadcasting University.

  8. 47 CFR 73.2090 - Ban on discrimination in broadcast transactions.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Ban on discrimination in broadcast transactions. 73.2090 Section 73.2090 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES Rules Applicable to All Broadcast Stations § 73.2090 Ban...

  9. 47 CFR 73.4185 - Political broadcasting and telecasting, the law of.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Political broadcasting and telecasting, the law of. 73.4185 Section 73.4185 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST... broadcasting and telecasting, the law of. (a) See “The Law of Political Broadcasting and...

  10. 78 FR 39584 - Domestic Requests for Broadcasting Board of Governors Program Materials

    Science.gov (United States)

    2013-07-02

    ....); The Radio Broadcasting to Cuba Act (22 U.S.C. 1465 et seq.); or The Television Broadcasting to Cuba... From the Federal Register Online via the Government Publishing Office BROADCASTING BOARD OF GOVERNORS 22 CFR Part 502 Domestic Requests for Broadcasting Board of Governors Program Materials...

  11. WVTF chief engineer receives award from Virginia Association of Broadcasters

    OpenAIRE

    Virginia Tech News

    2005-01-01

    WVTF Chief Engineer Paxton Durham has received the J. Jerry Freeman Engineering Achievement Award from the Virginia Association of Broadcasters. He accepted the award at the association's June 25 annual meeting.

  12. Broadcasts for Schools: The Under-Used Resource.

    Science.gov (United States)

    Shorrocks, Alec

    1980-01-01

    Notes common problems in using audiovisual aids in the classroom but points out that television and radio are undervalued and underused educational resources. Discusses British Broadcasting Corporation television and radio programs that would be valuable in teaching English. (GT)

  13. 77 FR 38761 - Radio Broadcasting Services; Pike Road, AL

    Science.gov (United States)

    2012-06-29

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Pike Road, AL AGENCY: Federal Communications Commission. ACTION: Proposal rule; dismissal. SUMMARY: The Audio Division dismisses the petition...

  14. 77 FR 64792 - Radio Broadcasting Services; Pike Road, AL

    Science.gov (United States)

    2012-10-23

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Pike Road, AL AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: This document requests comments on a petition for...

  15. Broadcast Service Areas, Radio, Published in Not Provided, US Army.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, Radio dataset as of Not Provided. Data by this publisher are often provided in Not Applicable coordinate system; in a Not Applicable...

  16. Broadcast Service Areas, Radio, Published in 2006, Farmer.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, Radio dataset, was produced all or in part from Field Survey/GPS information as of 2006. Data by this publisher are often provided in...

  17. Broadcast Service Areas, Other, Published in Not Provided, CPMC Mortgage.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, Other dataset, was produced all or in part from Published Reports/Deeds information as of Not Provided. The extent of these data is...

  18. Broadcast Service Areas, Other, Published in Not Provided, US Army.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, Other dataset as of Not Provided. Data by this publisher are often provided in Not Applicable coordinate system; in a Not Applicable...

  19. Control Strategy of Scheduling Invalidation of Data Broadcasting

    Directory of Open Access Journals (Sweden)

    Wen-bin Hu

    2010-01-01

    Full Text Available With the number increment of mobile computing equipment, the invalidation of equipment and broadcasting information because of wireless bandwidth, communication quality and too long scheduling queue that badly influence the system computing performance. Mobile cache is a good technology to solute this difficult problem. Considering the priority problem of broadcasting queue generated by data invalidation cache, this paper designs a multi-buffer queue-scheduling model, which classifies the priority of broadcasting data. An invalidation control strategy of data broadcasting scheduling based on mobile Agent and IBM Application Response Measurement (ARM is presented to guarantee data executing on the terminal in the right time. The results of experiments show that the invalidation rate and average work response time of the presented model and strategy in this paper are less (20% than the single buffer queue mode and random invalidation controlling strategy.

  20. Broadcast Service Areas, Cable, Published in Not Provided, US Army.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, Cable dataset as of Not Provided. Data by this publisher are often provided in Not Applicable coordinate system; in a Not Applicable...

  1. 76 FR 43933 - Radio Broadcasting Services; Markham, TX

    Science.gov (United States)

    2011-07-22

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Markham, TX AGENCY: Federal Communications Commission. ACTION: Final rule; denial of petition for reconsideration. SUMMARY: The Audio Division has denied...

  2. 75 FR 80013 - Radio Broadcasting Services; Jewett, TX

    Science.gov (United States)

    2010-12-21

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Jewett, TX AGENCY: Federal Communications Commission. ACTION: Proposed rule; dismissal. SUMMARY: At the petitioner's request, the Audio Division has...

  3. 75 FR 71411 - Radio Broadcasting Services; Silverpeak, NV

    Science.gov (United States)

    2010-11-23

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Silverpeak, NV AGENCY: Federal Communications Commission. ACTION: Proposed rule; dismissal. SUMMARY: The Audio Division dismisses the petition for...

  4. 76 FR 71909 - Television Broadcasting Services; Montgomery, AL

    Science.gov (United States)

    2011-11-21

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Montgomery, AL AGENCY: Federal Communications...)(A). List of Subjects in 47 CFR Part 73 Television. Federal Communications Commission. Barbara...

  5. 76 FR 68124 - Television Broadcasting Services; Fond du Lac, WI

    Science.gov (United States)

    2011-11-03

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Fond du Lac, WI AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: In this document, the Commission denies a petition...

  6. 75 FR 1546 - Television Broadcasting Services; Bangor, ME

    Science.gov (United States)

    2010-01-12

    ...The Commission has before it a petition for rulemaking filed by Community Broadcasting Service, the licensee of WABI-TV, channel 19, Bangor, Maine, requesting the substitution of channel 13 for channel 19 at...

  7. 75 FR 81190 - Television Broadcasting Services; Yuma, AZ

    Science.gov (United States)

    2010-12-27

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Yuma, AZ AGENCY: Federal Communications Commission. ACTION: Dismissal. SUMMARY: The Commission dismisses the petition for rulemaking filed by...

  8. 76 FR 33656 - Television Broadcasting Services; Nashville, TN

    Science.gov (United States)

    2011-06-09

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Nashville, TN AGENCY: Federal Communications... CFR Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video...

  9. An interference cancellation strategy for broadcast in hierarchical cell structure

    KAUST Repository

    Yang, Yuli

    2014-12-01

    In this paper, a hierarchical cell structure is considered, where public safety broadcasting is fulfilled in a femtocell located within a macrocell. In the femtocell, also known as local cell, an access point broadcasts to each local node (LN) over an orthogonal frequency sub-band independently. Since the local cell shares the spectrum licensed to the macrocell, a given LN is interfered by transmissions of the macrocell user (MU) in the same sub-band. To improve the broadcast performance in the local cell, a novel scheme is proposed to mitigate the interference from the MU to the LN while achieving diversity gain. For the sake of performance evaluation, ergodic capacity of the proposed scheme is quantified and a corresponding closed-form expression is obtained. By comparing with the traditional scheme that suffers from the MU\\'s interference, numerical results substantiate the advantage of the proposed scheme and provide a useful tool for the broadcast design in hierarchical cell systems.

  10. How we use online broadcasting - Web TV - for community engagement

    Science.gov (United States)

    Allison, M. L.; Conway, F. M.; Matti, J.; Palmer, R.

    2013-12-01

    The Arizona Geological Survey uses online broadcasting (Webcast or 'Web TV') to help fulfill our statutory mission to 'Inform, advise and assist the public in matters concerning the geological processes, materials and landscapes and the development and use of the mineral resources of this state.' We launched a monthly online broadcast called 'Arizona Mining Review' via Livestream, a low-cost or free video streaming service. The show provides news, interviews, and discussions about mining and mineral resources topics of interest in Arizona, the nation's second largest non-fuel mining state. The costs to set up and broadcast are minor. Interviews with local guests are held in a corner of the AZGS conference room with easy chairs and a couch; long-distance interviews are held via Skype. The broadcast originates from a desktop computer with a webcam, a $60 microphone, three sets of earbud headphones and a powered amplifier. During broadcasts, we supplement interview footage with slides, photos, or video clips that we have or are provided by guests. Initial broadcasts were live; recordings of these were later uploaded to our YouTube channel. Because scheduling and executing a live Internet broadcast is stressful and demanding for both the production team and guests, we recently elected to record and produce episodes prior to broadcasting them. This allows us more control over supplementary materials used during the broadcast; it also permits us to record the broadcast using a high-definition digital video camera that cannot be used for streaming video. In addition to the Arizona Mining Review, we record conferences and workshops and special presentations on topical issues. A video on the recently discovered Little Chino fault has drawn over 3,000 views. Our latest presentations are short 1-2 minute 'video abstracts' delivered by authors of new publications released by the Survey. These include maps and graphics from the reports to help illustrate the topics and their

  11. DMT of weighted Parallel Channels: Application to Broadcast Channel

    OpenAIRE

    Mroueh, Lina; Rouquette-Léveil, Stéphanie; Othman, Ghaya Rekaya-Ben; Belfiore, Jean-Claude

    2008-01-01

    In a broadcast channel with random packet arrival and transmission queues, the stability of the system is achieved by maximizing a weighted sum rate capacity with suitable weights that depend on the queue size. The weighted sum rate capacity using Dirty Paper Coding (DPC) and Zero Forcing (ZF) is asymptotically equivalent to the weighted sum capacity over parallel single-channels. In this paper, we study the Diversity Multiplexing Tradeoff (DMT) of the fading broadcast channel under a fixed w...

  12. Four-Party Quantum Broadcast Scheme Based on Aharonov State

    International Nuclear Information System (INIS)

    In this paper, we propose a solution based on four-qubit Aharonov state to an old problem by using the property of congruence. The proposed scheme may realize the broadcast among four participants, therefore, it makes progress to the three-party broadcast realized previously. Using pairwise quantum channels and entangled qubits, the detection between these players also can be accomplished. Finally, the feasibility of the protocol and the analysis of security are illustrated

  13. Finding Murphy Brown: How Accessible are Historic Television Broadcasts?

    OpenAIRE

    Ubois, Jeff

    2006-01-01

    This article presents the results of a project completed in May, 2005 at the University of California, Berkeley to measure the accessibility of historic television broadcasts. The first section describes a model of the accessibility of news and entertainment broadcasts, and the second section applies this model in an attempted reconstruction of the interaction on television between then-Vice President Dan Quayle and the fictional character Murphy Brown. The final section compares the results ...

  14. Unsupervised Speaker Change Detection for Broadcast News Segmentation

    DEFF Research Database (Denmark)

    Jørgensen, Kasper Winther; Mølgaard, Lasse Lohilahti; Hansen, Lars Kai

    2006-01-01

    This paper presents a speaker change detection system for news broadcast segmentation based on a vector quantization (VQ) approach. The system does not make any assumption about the number of speakers or speaker identity. The system uses mel frequency cepstral coefficients and change detection is...... significant losses in the detection of correct changes. We furthermore evaluate the generalizability of the approach by testing the complete system on an independent set of broadcasts, including a channel not present in the training set....

  15. Transmission techniques for emergent multicast and broadcast systems

    CERN Document Server

    da Silva, Mario Marques; Dinis, Rui; Souto, Nuno; Silva, Joao Carlos

    2010-01-01

    Describing efficient transmission schemes for broadband wireless systems, Transmission Techniques for Emergent Multicast and Broadcast Systems examines advances in transmission techniques and receiver designs capable of supporting the emergent wireless needs for multimedia broadcast and multicast service (MBMS) requirements. It summarizes the research and development taking place in wireless communications for multimedia MBMS and addresses the means to improved spectral efficiency to allow for increased user bit rate, as well as increased capacity of the digital cellular radio network.The text

  16. Inter-destination Media Synchronization for TV broadcasts

    OpenAIRE

    Mekuria, R.N.

    2011-01-01

    This thesis presents a study on the application of inter-destination synchronization for TV-broadcasting. Inter-destination media synchronization implies synchronizing media output at different receivers. This thesis starts by investigating differences in media output between receivers of TV broadcasts at different locations and different technologies. To do this a measurement scheme is developed using media mining techniques and the fact that differences were found to be relatively fixed bet...

  17. Blast from the past? A comparative analysis of broadcasting licensing in the digital era

    OpenAIRE

    Schweizer, Corinne; Puppis, Manuel; Künzler, Matthias (Hrsg.); Studer, Samuel

    2014-01-01

    The advent of new broadcasting technologies has eliminated spectrum scarcity as a constraint on broadcasting, and with it one of the justifications for broadcast licensing. Have nations moved away from licensing as a form of regulation of their broadcasting sectors? And concomitantly, is there less opportunity to use licensing as a means of promoting the public interest in broadcasting? The authors address these questions through a comparative study of licensing requirements for terrestrial b...

  18. Broadcasted Location-Aware Data Cache for Vehicular Application

    Directory of Open Access Journals (Sweden)

    Fukuda Akira

    2007-01-01

    Full Text Available There has been increasing interest in the exploitation of advances in information technology, for example, mobile computing and wireless communications in ITS (intelligent transport systems. Classes of applications that can benefit from such an infrastructure include traffic information, roadside businesses, weather reports, entertainment, and so on. There are several wireless communication methods currently available that can be utilized for vehicular applications, such as cellular phone networks, DSRC (dedicated short-range communication, and digital broadcasting. While a cellular phone network is relatively slow and a DSRC has a very small communication area, one-segment digital terrestrial broadcasting service was launched in Japan in 2006, high-performance digital broadcasting for mobile hosts has been available recently. However, broadcast delivery methods have the drawback that clients need to wait for the required data items to appear on the broadcast channel. In this paper, we propose a new cache system to effectively prefetch and replace broadcast data using "scope" (an available area of location-dependent data and "mobility specification" (a schedule according to the direction in which a mobile host moves. We numerically evaluate the cache system on the model close to the traffic road environment, and implement the emulation system to evaluate this location-aware data delivery method for a concrete vehicular application that delivers geographic road map data to a car navigation system.

  19. Broadcasted Location-Aware Data Cache for Vehicular Application

    Directory of Open Access Journals (Sweden)

    Kenya Sato

    2007-05-01

    Full Text Available There has been increasing interest in the exploitation of advances in information technology, for example, mobile computing and wireless communications in ITS (intelligent transport systems. Classes of applications that can benefit from such an infrastructure include traffic information, roadside businesses, weather reports, entertainment, and so on. There are several wireless communication methods currently available that can be utilized for vehicular applications, such as cellular phone networks, DSRC (dedicated short-range communication, and digital broadcasting. While a cellular phone network is relatively slow and a DSRC has a very small communication area, one-segment digital terrestrial broadcasting service was launched in Japan in 2006, high-performance digital broadcasting for mobile hosts has been available recently. However, broadcast delivery methods have the drawback that clients need to wait for the required data items to appear on the broadcast channel. In this paper, we propose a new cache system to effectively prefetch and replace broadcast data using “scope” (an available area of location-dependent data and “mobility specification” (a schedule according to the direction in which a mobile host moves. We numerically evaluate the cache system on the model close to the traffic road environment, and implement the emulation system to evaluate this location-aware data delivery method for a concrete vehicular application that delivers geographic road map data to a car navigation system.

  20. Broadcasting with an Energy Harvesting Rechargeable Transmitter

    CERN Document Server

    Yang, Jing; Ulukus, Sennur

    2010-01-01

    In this paper, we investigate the transmission completion time minimization problem in a two-user additive white Gaussian noise (AWGN) broadcast channel, where the transmitter is able to harvest energy from the nature, using a rechargeable battery. The harvested energy is modeled to arrive at the transmitter randomly during the course of transmissions. The transmitter has a fixed number of packets to be delivered to each receiver. Our goal is to minimize the time by which all of the packets for both users are delivered to their respective destinations. To this end, we optimize the transmit powers and transmission rates intended for both users. We first analyze the structural properties of the optimal transmission policy. We prove that the optimal total transmit power has the same structure as the optimal single-user transmit power. We also prove that there exists a cut-off power level for the stronger user. If the optimal total transmit power is lower than this cut-off level, all transmit power is allocated t...

  1. Transmitter microdischarges in communications and broadcast Satellites

    Science.gov (United States)

    Briskman, Robert D.; Kaliski, Michael A. R.

    2016-09-01

    Most commercial communications and broadcast satellites operating at microwave radio frequencies use traveling wave tube amplifiers (TWTAs) as high power transmitters. Since TWTAs work at high voltages, it is not uncommon to experience micro-discharges, especially early in life. This observation led to the introduction of an autonomous restart function in the companion high voltage power supply (the electronic power conditioner or EPC) of the TWTA as a safety feature. A microdischarge with enough energy above a threshold would lead to a momentary removal of high voltages, followed by an automatic restart, which is usually sufficient to allow the microdischarge event to clear with minimal loss of RF transmission. In most cases the energy involved in the microdischarge is low enough that the removal of high voltages is not required and the event may go undetected. However, an unusual signature was first noted in early 1997 on a Ku-band satellite transmitter, where the characteristics of the microdischarge event were such that the control anode voltage dropped below nominal and typically recovered over a 20 min period. Such microdischarge events became known as the "20 min Effect" which has since been observed over subsequent years on other Ku-band TWTAs, as well as on Ka-band and S-band satellite TWTA transmitters in numerous satellites. This paper summarizes the in-orbit data on such microdischarges as well as the believed cause. In addition, the paper includes results from three S-band TWTAs which have operated on life test for many years. Due to ease of their monitoring instrumentation as contrast to monitoring microdischarges on orbiting operational satellites via telemetry, new data have been accumulated on this effect. The data substantiate the previous findings that microdischarges do not significantly affect satellite operation or their transmissions nor diminish the TWTAs performance, including long lifetime.

  2. Obstacles to broadcasting for national integration in Nigeria.

    Science.gov (United States)

    Amienyi, O P

    1989-01-01

    In Nigeria, the media is the major government vehicle to achieve national integration. The problems arise from the approximately 250 ethnic groups speaking many languages. Television and radio have caused disintegration by emphasizing alienation and polarization rather than unity. With more than 178 languages there are major problems for radio and television. The government leaders have promoted a strong interest in creating a unified society through broadcasting, but at the same time have allowed media managers to operate towards goals of ethnic protection. Religion is also a factor that hinders broadcasting for national unity, since there are Hausa and Muslim in the north, Catholic in the south-east, and in the south-west there are many African ethnic religions. More than 60% of the local programming on television is keyed to local religious subjects. Illiteracy is also a problem in the use of broadcasting in the goal of national integration. Only through education of a socially conscious people can the religious fanaticism, ethnocentrism, and tribalism be overcome to form a united nation. Broadcasting can play an important role consistent with the needs of society as a whole. Managers in broadcasting must be well educated, well trained and understand the needs and ambitions of society. They need to support these needs and ambitions, and be constructively critical when necessary for the betterment of society. PMID:12316205

  3. Hybrid Broadcast for the Video-on-Demand Service

    Institute of Scientific and Technical Information of China (English)

    马华东; Kang G.Shin

    2002-01-01

    Multicast offers an efficient means of distributing video contents/programs to multiple clients by batching their requests and then having them share a server's video stream. Batching customers' requests is either client-initiated or server-initiated. Most advanced client-initiated video multicasts are implemented by patching. Periodic broadcast, a typical server-initiated approach, can be entirety-based or segment-based. This paper focuses on the performance of the VoD service for popular videos. First, we analyze the limitation of conventional patching when the customer request rate is high. Then, by combining the advantages of each of the two broadcast schemes, we propose a hybrid broadcast scheme for popular videos, which not only lowers the service latency but also improves clients' interactivity by using an active buffering technique. This is shown to be a good compromise for both lowering service latency and improving the VCR-like interactivity.

  4. Ionospheric electron density profile estimation using commercial AM broadcast signals

    Science.gov (United States)

    Yu, De; Ma, Hong; Cheng, Li; Li, Yang; Zhang, Yufeng; Chen, Wenjun

    2015-08-01

    A new method for estimating the bottom electron density profile by using commercial AM broadcast signals as non-cooperative signals is presented in this paper. Without requiring any dedicated transmitters, the required input data are the measured elevation angles of signals transmitted from the known locations of broadcast stations. The input data are inverted for the QPS model parameters depicting the electron density profile of the signal's reflection area by using a probabilistic inversion technique. This method has been validated on synthesized data and used with the real data provided by an HF direction-finding system situated near the city of Wuhan. The estimated parameters obtained by the proposed method have been compared with vertical ionosonde data and have been used to locate the Shijiazhuang broadcast station. The simulation and experimental results indicate that the proposed ionospheric sounding method is feasible for obtaining useful electron density profiles.

  5. Joint-source-channel coding scheme for scalable video-coding-based digital video broadcasting, second generation satellite broadcasting system

    Science.gov (United States)

    Seo, Kwang-Deok; Chi, Won Sup; Lee, In Ki; Chang, Dae-Ig

    2010-10-01

    We propose a joint-source-channel coding (JSCC) scheme that can provide and sustain high-quality video service in spite of deteriorated transmission channel conditions of the second generation of the digital video broadcasting (DVB-S2) satellite broadcasting service. Especially by combining the layered characteristics of the SVC (scalable video coding) video and the robust channel coding capability of LDPC (low-density parity check) employed for DVB-S2, a new concept of JSCC for digital satellite broadcasting service is developed. Rain attenuation in high-frequency bands such as the Ka band is a major factor for lowering the link capacity in satellite broadcasting service. Therefore, it is necessary to devise a new technology to dynamically manage the rain attenuation by adopting a JSCC scheme that can apply variable code rates for both source and channel coding. For this purpose, we develop a JSCC scheme by combining SVC and LDPC, and prove the performance of the proposed JSCC scheme by extensive simulations where SVC coded video is transmitted over various error-prone channels with AWGN (additive white Gaussian noise) patterns in DVB-S2 broadcasting service.

  6. Resource allocation for multichannel broadcasting visible light communication

    Science.gov (United States)

    Le, Nam-Tuan; Jang, Yeong Min

    2015-11-01

    Visible light communication (VLC), which offers the possibility of using light sources for both illumination and data communications simultaneously, will be a promising incorporation technique with lighting applications. However, it still remains some challenges especially coverage because of field-of-view limitation. In this paper, we focus on this issue by suggesting a resource allocation scheme for VLC broadcasting system. By using frame synchronization and a network calculus QoS approximation, as well as diversity technology, the proposed VLC architecture and QoS resource allocation for the multichannel-broadcasting MAC (medium access control) protocol can solve the coverage limitation problem and the link switching problem of exhibition service.

  7. The Response Time Analysis of Digital Broadcasting System

    Institute of Scientific and Technical Information of China (English)

    WANG Shuo; ZHANG Jiang-ling; FENG Dan

    2005-01-01

    Digital broadcasting system has become a highlight of research on computer application. To respond to the changes of the playbill in the broadcasting system in real time, the response time of the system must be studied. There is scarcely the research on this area currently. The influence factors in the response time are analyzed; the model on the response time of the system service is built; how the influence factors affect the response time of the system service is validated; and four improvement measures are proposed to minimize the response time of system service.

  8. IP MULTICAST GROUP MANAGEMENT FOR BROADCAST LANS DISTRIBUTION

    Institute of Scientific and Technical Information of China (English)

    阿姆贾德

    2001-01-01

    Problems of the current IGMP mechanism were identified, such as unnecessary periodic probing of hosts and leave latency, which wastes bandwidth and cause more traffic and overhead. Alternative mechanism that preserve the IP multicast model but employ join/leave messages to track local group membership for broadcast LANs (shared medium LANs) was proposed in this paper. We describe the implementation requirements of the new mechanism and compare it to existing one, demonstrating that join/leave approach is uniformly superior for the environment of broadcast LANs.

  9. 新奥特亮相Broadcast Asia2012

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    6月22日,Broadcast Asia2012在新加坡达城会议展览中心圆满落幕,新奥特公司携Himalaya非线性编辑系统、敦煌DX视觉效果合成系统、Mariana.5D在线图文包装系统、Auto.CM多媒体内容管理平台系统等多款创新产品成功参展本届BroadcastAsia,与海外用户分享了新奥特最新的发展成果。

  10. Broadcast, Denial-of-Service, and Secure Communication

    DEFF Research Database (Denmark)

    Vigo, Roberto; Nielson, Flemming; Nielson, Hanne Riis

    2013-01-01

    A main challenge in the design of wireless-based Cyber-Physical Systems consists in balancing the need for security and the effect of broadcast communication with the limited capabilities and reliability of sensor nodes. We present a calculus of broadcasting processes that enables to reason about...... unsolicited messages and lacking of expected communication. Moreover, standard cryptographic mechanisms can be implemented in the calculus via term rewriting. The modelling framework is complemented by an executable specification of the semantics of the calculus in Maude, thereby facilitating solving a number...

  11. DRACULA: Dynamic range control for broadcasting and other applications

    Science.gov (United States)

    Gilchrist, N. H. C.

    The BBC has developed a digital processor which is capable of reducing the dynamic range of audio in an unobtrusive manner. It is ideally suited to the task of controlling the level of musical programs. Operating as a self-contained dynamic range controller, the processor is suitable for controlling levels in conventional AM or FM broadcasting, or for applications such as the compression of program material for in-flight entertainment. It can, alternatively, be used to provide a supplementary signal in DAB (digital audio broadcasting) for optional dynamic compression in the receiver.

  12. Architecture and Design of IP Broadcasting System Using Passive Optical Network

    Science.gov (United States)

    Ikeda, Hiroki; Sugawa, Jun; Ashi, Yoshihiro; Sakamoto, Kenichi

    We propose an IP broadcasting system architecture using passive optical networks (PON) utilizing the optical broadcast links of a PON with a downstream bandwidth allocation algorithm to provide a multi-channel IP broadcasting service to home subscribers on single broadband IP network infrastructures. We introduce the design and adaptation of the optical broadcast links to effectively broadcast video contents to home subscribers. We present a performance analysis that includes the downstream bandwidth utilization efficiency of the broadcast link and the bandwidth control of the IP broadcasting and Internet data. Our analysis and simulation results show that the proposed system can provide 100 HDTV channels to every user over fiber lines. We also propose an IPTV channel selection mechanism in an ONT by selecting a broadcast stream. We developed and evaluated a prototype that can achieve a 15-msec IPTV channel selection speed.

  13. 76 FR 4078 - Television Broadcasting Services; North Pole and Plattsburgh, NY

    Science.gov (United States)

    2011-01-24

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; North Pole and Plattsburgh, NY AGENCY: Federal... CFR Part 73 Television, Television broadcasting. For the reasons discussed in the preamble,...

  14. 76 FR 54189 - Television Broadcasting Services; Hampton-Norfolk, Virginia; Norfolk, Virginia-Elizabeth City, NC

    Science.gov (United States)

    2011-08-31

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Hampton-Norfolk, Virginia; Norfolk, Virginia... 73 Television, Television broadcasting. Federal Communications Commission. Barbara A. Kreisman, Chief... Association (``HRETA''), the licensee of noncommercial educational television station WHRO-TV, channel...

  15. Demonstration of Broadcast Transmission, and Wavelength Conversion Functionalities Using Photonic Crystal Fibers

    DEFF Research Database (Denmark)

    Zsigri, Beata; Peucheret, Christophe; Nielsen, Martin Dybendal; Jeppesen, Palle

    2006-01-01

    Broadcasting functionality using cross-phase modulation in a nonlinear optical loop mirror utilizing 100-m highly nonlinear (HNL) photonic crystal fiber (PCF) as nonlinear element is demonstrated. This work presents entirely PCF-based network functionalities including broadcasting, transmission...

  16. 47 CFR 73.4163 - Noncommercial nature of educational broadcast stations.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Noncommercial nature of educational broadcast stations. 73.4163 Section 73.4163 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST... Noncommercial nature of educational broadcast stations. (a) See Second Report and Order, BC Docket 21136, FCC...

  17. 48 CFR 1903.670 - Contracts between the Broadcasting Board of Governors and former employees.

    Science.gov (United States)

    2010-10-01

    ... Broadcasting Board of Governors and former employees. 1903.670 Section 1903.670 Federal Acquisition Regulations System BROADCASTING BOARD OF GOVERNORS GENERAL IMPROPER BUSINESS PRACTICES AND PERSONAL CONFLICTS OF... Contracts between the Broadcasting Board of Governors and former employees. To avoid conflicts of...

  18. 37 CFR 253.6 - Performance of musical compositions by other public broadcasting entities.

    Science.gov (United States)

    2010-07-01

    ... compositions by other public broadcasting entities. 253.6 Section 253.6 Patents, Trademarks, and Copyrights... CERTAIN COPYRIGHTED WORKS IN CONNECTION WITH NONCOMMERCIAL EDUCATIONAL BROADCASTING § 253.6 Performance of musical compositions by other public broadcasting entities. (a) Scope. This section applies to...

  19. 22 CFR 521.39 - Appeal to the Broadcasting Board of Governors Director.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Appeal to the Broadcasting Board of Governors Director. 521.39 Section 521.39 Foreign Relations BROADCASTING BOARD OF GOVERNORS IMPLEMENTATION OF THE PROGRAM FRAUD CIVIL REMEDIES ACT § 521.39 Appeal to the Broadcasting Board of Governors Director. (a)...

  20. 47 CFR 73.758 - System specifications for digitally modulated emissions in the HF broadcasting service.

    Science.gov (United States)

    2010-10-01

    ... emissions in the HF broadcasting service. 73.758 Section 73.758 Telecommunication FEDERAL COMMUNICATIONS... § 73.758 System specifications for digitally modulated emissions in the HF broadcasting service. (a... digital audio broadcasting and datacasting are authorized. The RF requirements for the DRM system...

  1. 77 FR 22755 - Sunshine Act Meeting; Notice of Meeting of the Broadcasting Board of Governors

    Science.gov (United States)

    2012-04-17

    ... From the Federal Register Online via the Government Publishing Office BROADCASTING BOARD OF GOVERNORS Sunshine Act Meeting; Notice of Meeting of the Broadcasting Board of Governors DATE AND TIME: Friday, April 20, 2012, 10 a.m. PLACE: Office of Cuba Broadcasting, 4201 NW. 77th Ave., Miami, FL...

  2. 48 CFR 1953.370 - The Broadcasting Board of Governors forms.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true The Broadcasting Board of Governors forms. 1953.370 Section 1953.370 Federal Acquisition Regulations System BROADCASTING BOARD OF GOVERNORS CLAUSES AND FORMS FORMS Illustrations of Forms 1953.370 The Broadcasting Board of Governors...

  3. 37 CFR 201.9 - Recordation of agreements between copyright owners and public broadcasting entities.

    Science.gov (United States)

    2010-07-01

    ... between copyright owners and public broadcasting entities. 201.9 Section 201.9 Patents, Trademarks, and... Recordation of agreements between copyright owners and public broadcasting entities. (a) License agreements... published pictorial, graphic, and sculptural works, and one or more public broadcasting entities, and...

  4. 32 CFR 150.27 - Recording, photographing, broadcasting, or telecasting of hearings.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 1 2010-07-01 2010-07-01 false Recording, photographing, broadcasting, or... AND PROCEDURE § 150.27 Recording, photographing, broadcasting, or telecasting of hearings. The recording, photographing, broadcasting, or televising of any session of the Court or other activity...

  5. 77 FR 30423 - Innovation in the Broadcast Television Bands: Allocations, Channel Sharing and Improvements to...

    Science.gov (United States)

    2012-05-23

    ... Register.'' 5 U.S.C. 601(3). \\7\\ Small Business Act, 15 U.S.C. 632 (1996). Television Broadcasting. This... sound. These establishments operate television broadcasting studios and facilities for the programming... size standard for Television Broadcasting firms: Those having $14 million or less in annual...

  6. 47 CFR 73.1210 - TV/FM dual-language broadcasting in Puerto Rico.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false TV/FM dual-language broadcasting in Puerto Rico...-language broadcasting in Puerto Rico. (a) For the purpose of this section, dual-language broadcasting shall... a different language. (b) Television and Class A television licensees in Puerto Rico may enter...

  7. Religious Broadcasting. Focused Access to Selected Topics (FAST) Bibliography No. 7.

    Science.gov (United States)

    Shermis, Michael

    This annotated bibliography on religious broadcasting contains 23 references of articles in the ERIC database. The first section of this FAST Bib lists sources which relate to the historical development of religious broadcasting. The next section looks at the role that television plays in religious broadcasting. A section on the Christian Right…

  8. The interactive contents authoring system for terrestrial digital multimedia broadcasting

    Science.gov (United States)

    Cheong, Won-Sik; Ahn, Sangwoo; Cha, Jihun; Moon, Kyung Ae

    2007-02-01

    This paper introduces an interactive contents authoring system which can easily and conveniently produce interactive contents for the Terrestrial Digital Multimedia Broadcasting (T-DMB). For interactive broadcasting service, T-DMB adopted MPEG-4 Systems technology. In order to the interactive service becomes flourishing on the market, various types of interactive contents should be well provided prior to the service. In MPEG-4 Systems specification, broadcasting contents are described by the combination of a large number of nodes, routes and descriptors. In order to provide interactive data services through the T-DMB network, it is essential to have an interactive contents authoring system which allows contents authors to compose interactive contents easily and conveniently even if they lack any background on MPEG-4 Systems technology. The introduced authoring system provides powerful graphical user interface and produces interactive broadcasting contents in the forms of binary and textual format. Therefore, the interactive contents authoring system presented in this paper would vastly contribute to the flourishing interactive service.

  9. 77 FR 2242 - Radio Broadcasting Services; Pike Road, AL

    Science.gov (United States)

    2012-01-17

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Pike Road, AL AGENCY: Federal Communications... filed by Alatron Corporation, Inc., proposing the allotment of Channel 228A at Pike Road, Alabama, as... Pike Road consistent with the minimum distance separation requirements of the Rules with a...

  10. Will broadcasters survive in the online and digital domain?

    NARCIS (Netherlands)

    Leurdijk, A.

    2007-01-01

    Digital television and the internet are fundamentally changing media markets. Consumers have access to an increasing amount of news, information and entertainment. In addition to traditional media companies such as publishers and broadcasters new players enter the market as content producers, packag

  11. 75 FR 3694 - Radio Broadcasting Services, Peach Springs, Arizona

    Science.gov (United States)

    2010-01-22

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services, Peach Springs, Arizona AGENCY: Federal Communications... Media Licenses, LLC, proposing the allotment of FM Channel 281C3 at Peach Springs, Arizona. The reference coordinates for Channel 281C3 at Peach Springs are 35-33-46 NL and 113-27-12 WL. DATES:...

  12. 78 FR 3877 - Radio Broadcasting Services; Peach Springs, AZ

    Science.gov (United States)

    2013-01-17

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Peach Springs, AZ AGENCY: Federal Communications... the Hualapai Tribe, proposing to amend the Table of Allotments by allotting Channel 265A at Peach... second potential service at Peach Springs. Channel 265A can be allotted at Peach Springs, Arizona,...

  13. 78 FR 25861 - Radio Broadcasting Services; Peach Springs, Arizona

    Science.gov (United States)

    2013-05-03

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Peach Springs, Arizona AGENCY: Federal Communications... Channel 265A as a first Tribal Allotment and a potential second local transmission service at Peach....) Channel 265A can be allotted at Peach Springs, consistent with the minimum distance...

  14. 75 FR 76293 - Radio Broadcasting Services; Peach Springs, AZ

    Science.gov (United States)

    2010-12-08

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Peach Springs, AZ AGENCY: Federal Communications..., allots FM Channel 281C3 at Peach Springs, Arizona, in order to maintain a first local service at that community. Channel 281C3 can be allotted at Peach Springs, Arizona, in compliance with the...

  15. Equilibrium in a random viewer model of television broadcasting

    DEFF Research Database (Denmark)

    Hansen, Bodil Olai; Keiding, Hans

    2014-01-01

    number of channels. The authors derive properties of equilibrium in an oligopolistic market with private broadcasters and show that the number of firms has a negative effect on overall advertising and viewer satisfaction. If there is a public channel that also sells advertisements but does not maximize...

  16. Using Digital Watermarking for Securing Next Generation Media Broadcasts

    Science.gov (United States)

    Birk, Dominik; Gaines, Seán

    The Internet presents a problem for the protection of intellectual property. Those who create content must be adequately compensated for the use of their works. Rights agencies who monitor the use of these works exist in many jurisdictions. In the traditional broadcast environment this monitoring is a difficult task. With Internet Protocol Television (IPTV) and Next Generation Networks (NGN) this situation is further complicated.

  17. 78 FR 12967 - Broadcast Services; Children's Television; Cable Operators

    Science.gov (United States)

    2013-02-26

    ...: The amendment to 47 CFR 73.3526(e)(11)(iii) published in the Federal Register at 70 FR 25, January 3... Register, 70 FR 25, January 3, 2005, the Commission adopted rules which contained information collection... COMMISSION 47 CFR Part 73 Broadcast Services; Children's Television; Cable Operators AGENCY:...

  18. Bluetooth Broadcasting : How far can we go? An experimental study

    NARCIS (Netherlands)

    Aiello, Marco; Jong, Remko de; Nes, Joel de

    2009-01-01

    Bluetooth is a wireless communication technology to build small networks of devices. It was designed as a cable replacement technology. Given its widespread adoption, especially in mobile devices, new uses are possible today. For instance, one can broadcast messages to nomadic users based on their l

  19. 78 FR 4078 - Radio Broadcasting Services; Hebbronville, TX

    Science.gov (United States)

    2013-01-18

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Hebbronville, TX AGENCY: Federal Communications... Review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio...

  20. 78 FR 11987 - Radio Broadcasting Services; Avalon, California

    Science.gov (United States)

    2013-02-21

    ... 67 FR 70018, November 20, 2002, is effective February 21, 2013. FOR FURTHER INFORMATION CONTACT: For... 67 FR 70018, November 20, 2002. The final rule amended Sec. 73.622(b), Table of Allotments, under... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Avalon, California AGENCY: Federal...

  1. 76 FR 37049 - Radio Broadcasting Services; Bastrop, LA

    Science.gov (United States)

    2011-06-24

    ...-210. See 71 FR 76208, published December 20, 2006. Channel 230A was originally added to the FM Table of Allotments in MM Docket No. 99-141. See 66 FR 18734, published April 11, 2001. In this regard... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Bastrop, LA AGENCY: Federal Communications...

  2. 76 FR 79113 - Radio Broadcasting Services; Bastrop, LA

    Science.gov (United States)

    2011-12-21

    ... FM Table of Allotments in MB Docket 05-210 (see 71 FR 76208, published December 20, 2006), but the... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Bastrop, LA AGENCY: Federal Communications...

  3. 76 FR 79112 - Radio Broadcasting Services; Milford, UT

    Science.gov (United States)

    2011-12-21

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Milford, UT AGENCY: Federal Communications Commission. ACTION: Final Rule. SUMMARY: The Audio Division, at the request of Canyon Media Group, LLC, allots...

  4. 77 FR 32900 - Radio Broadcasting Services; Llano, TX

    Science.gov (United States)

    2012-06-04

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Llano, TX AGENCY: Federal Communications Commission... Congressional Review Act, see U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio...

  5. 76 FR 13524 - Radio Broadcasting Services; Willow Creek, CA

    Science.gov (United States)

    2011-03-14

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Willow Creek, CA AGENCY: Federal Communications... Congressional Review Act, see U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio...

  6. 76 FR 69222 - Radio Broadcasting Services; Altamont, OR

    Science.gov (United States)

    2011-11-08

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Altamont, OR AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: This document sets forth a proposal to amend the FM Table of...

  7. Interviewers' challenging questions in British broadcast debate interviews

    DEFF Research Database (Denmark)

    Emmertsen, Sofie

    2007-01-01

    In recent years some British broadcast panel interviews take a particularly confrontational form. In these debate interviews, news seems to be generated as arguments provided by the interviewees who participate as protagonists of opposite positions. This paper will briefly attempt to show that...

  8. 77 FR 50630 - Radio Broadcasting Services; Westfield, NY

    Science.gov (United States)

    2012-08-22

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Westfield, NY AGENCY: Federal Communications... Review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Radio, Radio...

  9. Flexible Broadcasting of Scalable Video Streams in Broadband Wireless System

    Directory of Open Access Journals (Sweden)

    D. Lavanya

    2015-02-01

    Full Text Available This paper presents a novel cross-layer optimization framework to improve the quality of user experience (QOE and energy efficiency of the heterogeneous wireless multimedia broadcast receivers. User grouping is based on the respective UE resolution capabilities and received SNR. A UE capability is determined by the BS at the time of service subscription, when the UE sends its type information, i.e., the number of layers it wants to receive. The UE periodically updated its channel condition to the BS through the uplink channel. This joint optimization is achieved by grouping the users based on their device capabilities and estimated channel conditions experienced by them and broadcasting adaptive content to these groups. The adaptive multimedia content is obtained by using scalable video coding (SVC with optimal source encoding parameters resulted from an innovative cooperative game. Energy saving at user terminals results from using a layer-aware time slicing approach in the transmission stage. Time slicing approach allows discontinuous reception at the UEs, thereby facilitating the UE to turn-off the radio when not receiving data bursts and hence saving energy. A trade-off between energy saving and QOE is observed, and is incorporated in the definition of a utility function of the players in the formulated heterogeneous user composition and physical channel aware game. An adaptive modulation and coding scheme is also optimally incorporated in order to maximize the reception quality of the broadcast receivers, while maximizing the network broadcast capacity.

  10. 75 FR 76294 - Radio Broadcasting Services: Pacific Junction, IA

    Science.gov (United States)

    2010-12-08

    ... Junction, in overcoming objections raised by the FAA to the activation of this allotment. See 75 FR 30756... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Radio Broadcasting Services: Pacific Junction, IA AGENCY: Federal...

  11. 47 CFR 73.14 - AM broadcast definitions.

    Science.gov (United States)

    2010-10-01

    ... pilot tone. An audio tone of fixed or variable frequency modulating the carrier during the transmission... turning off the main antenna or where lightning has caused damage to the main antenna or transmission... performance characteristics of a broadcast transmission system from point of program origination at...

  12. Using the interactive distance learning broadcast format for international audiences

    International Nuclear Information System (INIS)

    Since 1989, the National Environmental Technology Network (NETN) has been broadcasting interactive presentations on topics of national and international concern. Each interactive presentation covers such topics as decommissioning, environmental risk management, radioactive waste management, waste minimization, and total quality management. Course materials are provided to the attendees which feature case studies, legal and regulatory issues, and the application of existing and new technologies. The interactive presentations are broadcast by satellite and videotaped, allowing employees to participate who do not have convenient access to traditional classroom training resources. Over 8,000 professionals and students in the United States and several foreign countries have participated in the distance learning broadcast format, thus providing a proven and cost-effective method for managing educational and facility resources effectively. A case study is presented depicting why training, if neglected, can result in costly errors, and how the distance learning broadcast format can be expanded to assist regulatory officials, and even the local populace, in making cost-effective decisions. (author)

  13. 76 FR 44280 - Television Broadcasting Services; El Paso, TX

    Science.gov (United States)

    2011-07-25

    ... From the Federal Register Online via the Government Publishing Office ] FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; El Paso, TX AGENCY: Federal Communications... the Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73...

  14. Archiving the Airwaves: Accountability of the Dutch Public Broadcasting System

    NARCIS (Netherlands)

    J.M.C. Snoeren (Jasper)

    2016-01-01

    textabstractCombining television studies, archival studies and cultural history, this thesis asks the question to what extent public broadcasters in the Netherlands are keeping substantive and operational records that would allow for cultural accountability. Because of the unique setup of the Dutch

  15. 75 FR 25119 - Television Broadcasting Services; Seaford, DE

    Science.gov (United States)

    2010-05-07

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Seaford, DE AGENCY: Federal Communications... amended, to allocate not less than one very high frequency commercial television channel to each State, if... Review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television,...

  16. 76 FR 49697 - Television Broadcasting Services; Eau Claire, WI

    Science.gov (United States)

    2011-08-11

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Eau Claire, WI AGENCY: Federal Communications... Television Licensee, LLC (``Gray''), licensee of WEAU-TV, channel 13, Eau Claire, Wisconsin, requesting the... the Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73...

  17. 76 FR 27914 - Television Broadcasting Services; Kalispell, MT

    Science.gov (United States)

    2011-05-13

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Kalispell, MT AGENCY: Federal Communications... review Act, see 5 U.S.C. 801(a)(1)(A). ] List of Subjects in 47 CFR Part 73 Television....

  18. China formally issued mobile multimedia broadcasting industry standard

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ October 24, 2006, China SARFT (State Administration of Radio Film and Television) formally issued the China mobile multimedia broadcasting (namely,Mobile TV) industry standard. The standard is a STiMi standard self-developed in China and put into practice from November 1 this year.

  19. 76 FR 68117 - Television Broadcasting Services; Panama City, FL

    Science.gov (United States)

    2011-11-03

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Panama City, FL AGENCY: Federal Communications... Television Licensee, LLC (``Gray''), the licensee of WJHG-TV, channel 7, Panama City, Florida, requesting the... the Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73...

  20. 78 FR 75306 - Television Broadcasting Services; Birmingham, Alabama

    Science.gov (United States)

    2013-12-11

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Birmingham, Alabama AGENCY: Federal... filed by Alabama Educational Television Commission (``AETC''), the licensee of station WBIQ(TV), channel... seeks a waiver of the Commission's freeze on the filing of petitions for rulemaking by...

  1. 76 FR 19275 - Television Broadcasting Services; Jackson, MS

    Science.gov (United States)

    2011-04-07

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Jackson, MS AGENCY: Federal Communications... the Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73...

  2. 76 FR 18415 - Television Broadcasting Services; New Haven, CT

    Science.gov (United States)

    2011-04-04

    ...The Commission grants a petition for rulemaking filed by Connecticut Public Broadcasting, Inc. (``CPBI''), the licensee of noncommercial educational station WEDY, New Haven, Connecticut, requesting the substitution of channel *41 for channel *6 at New Haven. CPBI's channel *6 facility is subject to substantial levels of new interference from other post-transition stations' power increases, and......

  3. 78 FR 58470 - Television Broadcasting Services; Cedar Rapids, Iowa

    Science.gov (United States)

    2013-09-24

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Cedar Rapids, Iowa AGENCY: Federal Communications... review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television....

  4. 76 FR 5521 - Innovation in the Broadcast Television Bands

    Science.gov (United States)

    2011-02-01

    ...) by filing paper copies. See Electronic Filing of Documents in Rulemaking Proceedings, 63 FR 24121... television broadcasting and the consumers it serves, both off-the-air and through multichannel video program... capable of adequately receiving all frequencies allocated by the Commission to television...

  5. 76 FR 28946 - Television Broadcasting Services; El Paso, TX

    Science.gov (United States)

    2011-05-19

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; El Paso, TX AGENCY: Federal Communications... CFR 1.415 and 1.420. List of Subjects in 47 CFR Part 73 Television Federal Communications...

  6. 76 FR 19276 - Television Broadcasting Services; El Paso, TX

    Science.gov (United States)

    2011-04-07

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; El Paso, TX AGENCY: Federal Communications... U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television. Federal...

  7. 77 FR 33997 - Television Broadcasting Services; Greenville, NC

    Science.gov (United States)

    2012-06-08

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Greenville, NC AGENCY: Federal Communications... Commission instituted a freeze on the acceptance of rulemaking petitions by full power television stations... petitions for rulemaking filed by full power television stations seeking to relocate from channel...

  8. 76 FR 20248 - Television Broadcasting Services; Decatur, IL

    Science.gov (United States)

    2011-04-12

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 Television Broadcasting Services; Decatur, IL AGENCY: Federal Communications... review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television....

  9. 75 FR 13681 - Television Broadcasting Services; Atlantic City, NJ

    Science.gov (United States)

    2010-03-23

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Atlantic City, NJ AGENCY: Federal Communications... amended, to allocate not less than one very high frequency commercial television channel to each State, if... Review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television,...

  10. 78 FR 25591 - Radio Broadcasting Services; Crownpoint, New Mexico

    Science.gov (United States)

    2013-05-02

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Crownpoint, New Mexico AGENCY: Federal Communications... transmission service at Crownpoint, New Mexico. (The symbol `` '' will be used to denote a channel reserved as... under New Mexico, is amended by adding Crownpoint, Channel 297A. BILLING CODE 6712-01-P...

  11. 78 FR 71557 - Radio Broadcasting Services; Tohatchi, New Mexico

    Science.gov (United States)

    2013-11-29

    ... COMMISSION 47 CFR Part 73 Radio Broadcasting Services; Tohatchi, New Mexico AGENCY: Federal Communications... Rules, by allotting FM Channel 268C2, Tohatchi, New Mexico, as a first local service under the Tribal... 0 2. Section 73.202(b), the Table of FM Allotments under New Mexico, is amended by adding...

  12. Inter-destination Media Synchronization for TV broadcasts

    NARCIS (Netherlands)

    Mekuria, R.N.

    2011-01-01

    This thesis presents a study on the application of inter-destination synchronization for TV-broadcasting. Inter-destination media synchronization implies synchronizing media output at different receivers. This thesis starts by investigating differences in media output between receivers of TV broadca

  13. An Efficient Live TV Scheduling System for 4G LTE Broadcast

    KAUST Repository

    Lau, Chun Pong

    2016-01-01

    Traditional live television (TV) broadcasting systems are proven to be spectrum inefficient. Therefore, researchers propose to provide TV services on fourth-generation (4G) long-term evolution (LTE) networks. However, static broadcast, a typical broadcasting method over cellular network, is inefficient in terms of radio resource usage. To solve this problem, the audience-driven live TV scheduling (ADTVS) framework is proposed, to maximize radio resource usage when providing TV broadcasting services over LTE networks. ADTVS, a system-level scheduling framework, considers both available radio resources and audience preferences, in order to dynamically schedule TV channels for broadcasting at various time and locations. By conducting a simulation using real-life data and scenarios, it is shown that ADTVS significantly outperforms the static broadcast method. Numerical results indicate that, on average, ADTVS enables substantial improvement to broadcast efficiency and conserves considerable amount of radio resources, while forgoing less than 5% of user services compared to the benchmark system.

  14. 37 CFR 253.5 - Performance of musical compositions by public broadcasting entities licensed to colleges and...

    Science.gov (United States)

    2010-07-01

    ... compositions by public broadcasting entities licensed to colleges and universities. 253.5 Section 253.5 Patents... BROADCASTING § 253.5 Performance of musical compositions by public broadcasting entities licensed to colleges... terms of this section. (c) Royalty rate. A public broadcasting entity within the scope of this...

  15. Vast Educational Mobile Content Broadcasting using ARMrayan Multimedia Mobile CMS

    CERN Document Server

    Fatahi, Somayeh; Jahromi, Zahra Forootan

    2010-01-01

    The huge information flow currently available to young generation makes it difficult for educational centers to train them as needed. Most of these information flows occur in transportation time or while on public areas. Competing with commercial information streams is far out of educational centers time and budget. For creating enough mobile applications for vast educational mobile content broadcasting that can match young spirits as well, we designed and developed the ARMrayan Multimedia Mobile CMS as the software that helps communities, educational, cultural or marketing centers in a way that ordinary operators be able to create a variety of fully functional multimedia mobile applications such as tutorials, catalogues, books, and guides in minutes without writing even a line of code. In this paper, we present the role of our developed software in our proposed vast educational content broadcasting system using kiosks and Bluetooth advertising, which will lead to a great leap in M-commerce marketing and publ...

  16. Near Optimal Broadcast with Network Coding in Large Sensor Networks

    CERN Document Server

    Adjih, Cédric; Jacquet, Philippe

    2007-01-01

    We study efficient broadcasting for wireless sensor networks, with network coding. We address this issue for homogeneous sensor networks in the plane. Our results are based on a simple principle (IREN/IRON), which sets the same rate on most of the nodes (wireless links) of the network. With this rate selection, we give a value of the maximum achievable broadcast rate of the source: our central result is a proof of the value of the min-cut for such networks, viewed as hypergraphs. Our metric for efficiency is the number of transmissions necessary to transmit one packet from the source to every destination: we show that IREN/IRON achieves near optimality for large networks; that is, asymptotically, nearly every transmission brings new information from the source to the receiver. As a consequence, network coding asymptotically outperforms any scheme that does not use network coding.

  17. Experimental service of 3DTV broadcasting relay in Korea

    Science.gov (United States)

    Hur, Namho; Ahn, Chung-Hyun; Ahn, Chieteuk

    2002-11-01

    This paper introduces 3D HDTV relay broadcasting experiments of 2002 FIFA World Cup Korea/Japan using a terrestrial and satellite network. We have developed 3D HDTV cameras, 3D HDTV video multiplexer/demultiplexer, a 3D HDTV receiver, and a 3D HDTV OB van for field productions. By using a terrestrial and satellite network, we distributed a compressed 3D HDTV signal to predetermined demonstration venues which are approved by host broadcast services (HBS), KirchMedia, and FIFA. In this case, we transmitted a 40Mbps MPEG-2 transport stream (DVB-ASI) over a DS-3 network specified in ITU-T Rec. G.703. The video/audio compression formats are MPEG-2 main-profile, high-level and Dolby Digital AC-3 respectively. Then at venues, the recovered left and right images by the 3D HDTV receiver are displayed on a screen with polarized beam projectors.

  18. Broadcasting collective operation contributions throughout a parallel computer

    Science.gov (United States)

    Faraj, Ahmad

    2012-02-21

    Methods, systems, and products are disclosed for broadcasting collective operation contributions throughout a parallel computer. The parallel computer includes a plurality of compute nodes connected together through a data communications network. Each compute node has a plurality of processors for use in collective parallel operations on the parallel computer. Broadcasting collective operation contributions throughout a parallel computer according to embodiments of the present invention includes: transmitting, by each processor on each compute node, that processor's collective operation contribution to the other processors on that compute node using intra-node communications; and transmitting on a designated network link, by each processor on each compute node according to a serial processor transmission sequence, that processor's collective operation contribution to the other processors on the other compute nodes using inter-node communications.

  19. A planar array antenna for TV broadcasting communications

    Science.gov (United States)

    Cucci, A.; de Luca, A.

    The L-Sat planar array for satellite direct TV broadcasting is described. Still in the design stage, the array is intended for broadcasting on the X-band, within the 0.98 x 2.3 deg elliptical beam, sidelobe below -30 dB, circular polarization with low cross-polarization WARC requirements. The results of an analysis of the effects produced by the contour profile on the radiation pattern are presented. Further work has proceeded on a circuit model of a slot in a single subarray, the coupling of mutual slots, and the phase and amplitude behhavior of the coupled feeding and radiating waveguides. Finally, simulations have been performed of the thermally induced deformations, with attention given to warping and a tilted half-plane.

  20. Finding Minimum-Power Broadcast Trees for Wireless Networks

    Science.gov (United States)

    Arabshahi, Payman; Gray, Andrew; Das, Arindam; El-Sharkawi, Mohamed; Marks, Robert, II

    2004-01-01

    Some algorithms have been devised for use in a method of constructing tree graphs that represent connections among the nodes of a wireless communication network. These algorithms provide for determining the viability of any given candidate connection tree and for generating an initial set of viable trees that can be used in any of a variety of search algorithms (e.g., a genetic algorithm) to find a tree that enables the network to broadcast from a source node to all other nodes while consuming the minimum amount of total power. The method yields solutions better than those of a prior algorithm known as the broadcast incremental power algorithm, albeit at a slightly greater computational cost.

  1. An Improved Ant Colony Broadcasting Algorithm for Wireless Sensor Networks

    OpenAIRE

    Nan Jiang; Rigui Zhou; Shuqun Yang; Qiulin Ding

    2009-01-01

    Recent advances in nano-technology have made it possible to develop a large variety of Micro Electro-Mechanical Systems (MEMS)-miniaturized low-power devices that integrate sensing, special-purpose computing, and wireless communications capabilities. A sensor network is a collection of many small devices, each with sensing, computation, and communication capability. It has many potential applications, such as building surveillance and environmental monitoring. Broadcasting is defined that com...

  2. Empirical evidence for policy in telecommunication, copyright & broadcasting

    OpenAIRE

    Poort, J.P.

    2015-01-01

    This dissertation contains nine articles with an empirical focus in copyright, telecommunication, and broadcasting. These articles address different research questions and employ a variety of methodological approaches. They all share an economic foundation and the aim to contribute to evidence based policymaking in the field of information law. Topics covered range from the welfare effects of illegal downloading, to those of public television; from the effectiveness of blocking access to The ...

  3. Vast Educational Mobile Content Broadcasting using ARMrayan Multimedia Mobile CMS

    OpenAIRE

    Somayeh Fatahi; Ali Reza Manashty; Zahra Forootan Jahromi

    2010-01-01

    The huge information flow currently available to young generation makes it difficult for educational centers to train them as needed. Most of these information flows occur in transportation time or while on public areas. Competing with commercial information streams is far out of educational centers time and budget. For creating enough mobile applications for vast educational mobile content broadcasting that can match young spirits as well, we designed and developed the ARMrayan Multimedia Mo...

  4. Broadcast Transmission, Signal Secrecy And Gestural Primacy Hypothesis

    OpenAIRE

    Wacewicz, Sławomir; Żywiczyński, Przemysław

    2008-01-01

    In current literature, a number of standard lines of evidence reemerge in support of the hypothesis that the initial, “bootstrapping” stage of the evolution of language was gestural. However, one specific feature of gestural communication consistent with this hypothesis has been given surprisingly little attention. The visual modality makes gestural signals more secret than vocal signals (lack of broadcast transmission). The high relevance of secrecy is derived from the fundamental constraint...

  5. La battaglia delle idee nella politica britannica del broadcasting

    OpenAIRE

    Collins Richard

    2005-01-01

    The major issues and proposals offered in UK to the public discussion by five public Committees or institutions and two private commentaries at the eve of BBC Charter renewal in 2006 are explained and related to the leading principles of the British public service broadcasting policy as they have been pointed out by the Reports of various Committees from the 1920's. The concepts on which is focused the current struggle for ideas - accountability, governance and independence of the public serv...

  6. On the Power of Broadcasting in Mobile Computing

    Czech Academy of Sciences Publication Activity Database

    Wiedermann, Jiří; Pardubská, D.

    Berlin: Springer, 2008 - (Cooper, B.; Löwe, B.; Sorbi, A.), s. 195-209 ISBN 978-0-387-36033-1 R&D Projects: GA AV ČR 1ET100300517 Grant ostatní: VEGA(SK) 1/3106/06 Institutional research plan: CEZ:AV0Z10300504 Keywords : wireless Turing machine * alternating Turing machine * broadcasting * mobile computing * complexity Subject RIV: IN - Informatics, Computer Science

  7. Altmark, Article 86(2) and Public Service Broadcasting

    DEFF Research Database (Denmark)

    Mortensen, Frands

    2008-01-01

    En analyse af EU-Kommissionens 17 Beslutninger angående statsstøtte til Public Service Broadcasting, der er truffet efter afsigelse af Altmark-dommen i juli 2003. Kommissionen har i alle tilfælde først analyseret om de fire Altmark-krav er opfyldt, og det er aldrig tilfældet. dernæst har den...

  8. Single-Channel Data Broadcasting under Small Waiting Latency

    OpenAIRE

    Hsiang-Fu Yu

    2013-01-01

    Due to the advancement of network technology, video-on-demand (VoD) services are growing in popularity. However, individual stream allocation for client requests easily causes a VoD system overload; when its network and disk bandwidth cannot match client growth. This study thus presents a fundamentally different approach by focusing solely on a class of applications identified as latency tolerant applications. Because video broadcasting does not provide interactive (i.e., VCR) functions, a cl...

  9. Performance evaluation of adjusted probabilistic broadcasting in MANETs

    OpenAIRE

    Yassein, M.B.; Ould Khaoua, M.; MacKenzie, L M; Papanastasiou, S.

    2006-01-01

    Appropriate use of a probabilistic broadcasting method in MANETs can decrease the number of rebroadcasts, and as a result reduce the opportunity of contention and collision among neighbouring nodes. In this paper we evaluate the performance of adjusted probabilistic flooding by comparing it to "simple" flooding as used with the ad hoc on demand distance vector (AODV) routing protocol as well as a fixed probabilistic approach. The results reveal that the adjusted probabilistic flooding exhibit...

  10. Discussing performance management architecture in public service broadcasting

    DEFF Research Database (Denmark)

    Tambo, Torben; Gabel, Ole Dahl

    2014-01-01

    Purpose: To demonstrate design of Performance Management (PM) processes in highly complex, non-profit, culture-producing organisations specifically the shift from Performance Management Systems (PMS) to Performance Management Architectures (PMA) specifically using Danish Broadcasting Corporation...... metrics, reflected in an architecture, raises the certainty and level of organisational consensus. Research limitations/implications: DR is unique as the largest cultural institution in the Danish language area backed by a political consensus, strong popular support, high level of funding and a...

  11. Two-Phase Cooperative Broadcasting Based on Batched Network Code

    OpenAIRE

    Xu, Xiaoli; Gandhi, Praveen Kumar M.; Guan, Yong Liang; Chong, Peter Han Joo

    2015-01-01

    In this paper, we consider the wireless broadcasting scenario with a source node sending some common information to a group of closely located users, where each link is subject to certain packet erasures. To ensure reliable information reception by all users, the conventional approach generally requires repeated transmission by the source until all the users are able to decode the information, which is inefficient in many practical scenarios. In this paper, by exploiting the close proximity a...

  12. Secure Broadcasting with Imperfect Channel State Information at the Transmitter

    KAUST Repository

    Hyadi, Amal

    2015-11-13

    We investigate the problem of secure broadcasting over fast fading channels with imperfect main channel state information (CSI) at the transmitter. In particular, we analyze the effect of the noisy estimation of the main CSI on the throughput of a broadcast channel where the transmission is intended for multiple legitimate receivers in the presence of an eavesdropper. Besides, we consider the realistic case where the transmitter is only aware of the statistics of the eavesdropper’s CSI and not of its channel’s realizations. First, we discuss the common message transmission case where the source broadcasts the same information to all the receivers, and we provide an upper and a lower bounds on the ergodic secrecy capacity. For this case, we show that the secrecy rate is limited by the legitimate receiver having, on average, the worst main channel link and we prove that a non-zero secrecy rate can still be achieved even when the CSI at the transmitter is noisy. Then, we look at the independent messages case where the transmitter broadcasts multiple messages to the receivers, and each intended user is interested in an independent message. For this case, we present an expression for the achievable secrecy sum-rate and an upper bound on the secrecy sum-capacity and we show that, in the limit of large number of legitimate receivers K, our achievable secrecy sum-rate follows the scaling law log((1−) log(K)), where is the estimation error variance of the main CSI. The special cases of high SNR, perfect and no-main CSI are also analyzed. Analytical derivations and numerical results are presented to illustrate the obtained expressions for the case of independent and identically distributed Rayleigh fading channels.

  13. Lifting the Veil: the Arts, Broadcasting and Irish Society

    OpenAIRE

    O'Neill, Brian

    2000-01-01

    This article examines the role played by broadcasting in Irish artistic and cultural life from independence in 1922 to 1960 with the onset of formal modernization. It examines the cultural context for the arts in early independent Ireland in which a mood of ambivalence and sometimes outright hostility to high culture prevailed. Rather than a profound disjunction between pre- and post-modernizing phases of Irish history, however, this article argues that there were important lines of continuit...

  14. 'Creative diversity’: UK public service broadcasting after multiculturalism

    OpenAIRE

    Malik, S

    2013-01-01

    This is an Author's Accepted Manuscript of an article published in Popular Communication: The International Journal of Media and Culture, 11(3), 227-241, 2013, copyright Taylor & Francis, available online at: http://www.tandfonline.com/10.1080/15405702.2013.810081. Through a critical review of recent literature and policy concepts, this article puts together history and analysis to consider the relationship between race and UK public service broadcasting. Building on earlier work that reco...

  15. Intelligent Emergency Message Broadcasting in VANET Using PSO

    OpenAIRE

    2014-01-01

    The new type of Mobile Ad hoc Network which is called Vehicular Ad hoc Networks (VANET) created a fertile environment for research. In this research, a protocol Particle Swarm Optimization Contention Based Broadcast (PCBB) is proposed, for fast andeffective dissemination of emergency messages within a geographical area to distribute the emergency message and achieve the safety system, this research will help the VANET system to achieve its safety goals in intelligent and efficient way.

  16. Compressive Sensing for Feedback Reduction in MIMO Broadcast Channels

    OpenAIRE

    Qaseem, Syed T.; Al-Naffouri, Tareq Y.

    2009-01-01

    We propose a generalized feedback model and compressive sensing based opportunistic feedback schemes for feedback resource reduction in MIMO Broadcast Channels under the assumption that both uplink and downlink channels undergo block Rayleigh fading. Feedback resources are shared and are opportunistically accessed by users who are strong, i.e. users whose channel quality information is above a certain fixed threshold. Strong users send same feedback information on all shared channels. They ar...

  17. A Distributed Information Filtering: Stakes and solution for satellite broadcasting

    OpenAIRE

    Castagnos, Sylvain; Boyer, Anne; Charpillet, François

    2005-01-01

    ISBN 972-8865-20-1/http://www.insticc.net/ This paper is a preliminary report which presents information filtering solutions designed within the scope of a collaboration between our laboratory and the company of broadcasting per satellite SES ASTRA. The latter have finalized a system sponsored by advertisement and supplying to users a high bandwidth access to hundreds of web sites for free. This project aims at highlighting the benefits of collaborative filtering by including such a module...

  18. To control the world's information flows Soviet Cold War broadcasting

    OpenAIRE

    Mikkonen, Simo

    2013-01-01

    The radio journalist James Wood has described the high power shortwave transmitter as the weapon of the Cold War.1 There is a reason for this: both superpowers sought constantly throughout the Cold War to expand their transmitting power to reach even the most distant places and provide ever more language services to nations they wished to influence. Radio broadcasting became the way to contact foreign populations and convey the message of the foreign government. Yet, while mess...

  19. 47 CFR 73.624 - Digital television broadcast stations.

    Science.gov (United States)

    2010-10-01

    ... Report and Order in MB Docket No. 87-268 and codified at 47 CFR 73.622(i). (vi) August 18, 2008 in all..., established by the Seventh Report and Order in MB Docket No. 87-268 and codified at 47 CFR 73.622(i). (vii... 47 Telecommunication 4 2010-10-01 2010-10-01 false Digital television broadcast stations....

  20. Multi Antenna Techniques for Digital Video Broadcasting (DVB) Systems

    OpenAIRE

    Vargas Paredero, David Eduardo; Gozálvez Serrano, David; Gómez Barquero, David; Cardona Marcet, Narciso

    2012-01-01

    In this paper we describe the potential of multi-antenna techniques (MIMO) in the context of digital video broadcasting (DVB) systems. DVB standards have been challenged by the increasing demand of high data rate applications and larger indoor coverage area. MIMO is a key technology to increase the system capacity and link reliability without any additional bandwidth or transmit signal power. The Mobile Communications Group of iTEAM research institute has been actively...

  1. Information Asymmetries and Their Challenge to International Broadcasting

    Directory of Open Access Journals (Sweden)

    Monroe Edwin Price

    2016-05-01

    Full Text Available Dramatic symmetries in strategies and techniques of persuasion create challenges to the functioning of established actors in the global media ecology, including international broadcasters. This essay articulates an adaptation of the concept of asymmetric warfare to the field of propaganda, persuasion and recruitment. It examines the particular challenge of certain asymmetric entrants, including ISIS and categorizes how the more traditional entities and government institutions react to these new entrants in markets for loyalties.

  2. Information Asymmetries and Their Challenge to International Broadcasting

    OpenAIRE

    Monroe Edwin Price

    2016-01-01

    Dramatic symmetries in strategies and techniques of persuasion create challenges to the functioning of established actors in the global media ecology, including international broadcasters. This essay articulates an adaptation of the concept of asymmetric warfare to the field of propaganda, persuasion and recruitment. It examines the particular challenge of certain asymmetric entrants, including ISIS and categorizes how the more traditional entities and government institutions react to these n...

  3. Building Fastest Broadcast Trees in Periodically-Varying Graphs

    CERN Document Server

    Casteigts, Arnaud; Mans, Bernard; Santoro, Nicola

    2012-01-01

    Delay-tolerant networks (DTNs) are characterized by a possible absence of end-to-end communication routes at any instant. Still, connectivity can generally be established over time and space. The optimality of a temporal path (journey) in this context can be defined in several terms, including topological (e.g. {\\em shortest} in hops) and temporal (e.g. {\\em fastest, foremost}). The combinatorial problem of computing shortest, foremost, and fastest journeys {\\em given full knowledge} of the network schedule was addressed a decade ago (Bui-Xuan {\\it et al.}, 2003). A recent line of research has focused on the distributed version of this problem, where foremost, shortest or fastest {\\em broadcast} are performed without knowing the schedule beforehand. In this paper we show how to build {\\em fastest} broadcast trees (i.e., trees that minimize the global duration of the broadcast, however late the departure is) in Time-Varying Graphs where intermittent edges are available periodically (it is known that the proble...

  4. Radio broadcasting: a conceptual challenge in Latin America

    Directory of Open Access Journals (Sweden)

    Nelia R. Del Bianco

    2012-12-01

    Full Text Available The objective of this paper is to present the partial results of research carried out by the Observatory of Public Radio Broadcasting of Latin America on the changes occurring in the public radio and TV systems in 10 Latin American countries, under the aspects of functioning models, management, financing, and social participation. After the rising to power of governments linked to parties from the left, we verified that communication policies are being established, which aim at closing the gap between traditional state broadcasting stations and the notion of public. This considers the principles that characterize the action of this media, determined by UNESCO (2001: universality, diversity, independence, and differentiation of content in the programming. A hundred and forty broadcasting stations were analyzed from the perspective of being public based on two criteria: those that are under the control of the State direct or indirectly, by means of concessions for use without profit for foundations, companies, and public universities; and those that receive public financing. Based on the analysis of the data, five trend tendencies were observed: the construction of a new regulatory framework; the creation of public companies instead of legal centralized state structures; the institution of relatively autonomous deliberative councils responsible for overseeing the management of the stations; the diversification of funding sources in an attempt to reverse the dependence on government resources; and the renewal of the programming with the opening for independent production.

  5. Quantum broadcasting problem in classical low-power signal processing

    International Nuclear Information System (INIS)

    We prove a no-broadcasting theorem for the Holevo information of a noncommuting ensemble stating that no operation can generate a bipartite ensemble such that both copies have the same information as the original. We argue that upper bounds on the average information over both copies imply lower bounds on the quantum capacity required to send the ensemble without information loss. This is because a channel with zero quantum capacity has a unitary extension transferring at least as much information to its environment as it transfers to the output. For an ensemble being the time orbit of a pure state under a Hamiltonian evolution, we derive such a bound on the required quantum capacity in terms of properties of the input and output energy distribution. Moreover, we discuss relations between the broadcasting problem and entropy power inequalities. The broadcasting problem arises when a signal should be transmitted by a time-invariant device such that the outgoing signal has the same timing information as the incoming signal had. Based on previous results we argue that this establishes a link between quantum information theory and the theory of low power computing because the loss of timing information implies loss of free energy

  6. Wireless Peer-to-Peer Mutual Broadcast via Sparse Recovery

    CERN Document Server

    Zhang, Lei

    2011-01-01

    Consider a problem frequently seen in wireless peer-to-peer networks: Every node has messages to broadcast to its peers, namely, all nodes within one hop. Conventional schemes allow only one transmission to succeed at a time in a two-hop neighborhood, because 1) simultaneous transmissions in the neighborhood collide, and 2) affordable radio is half-duplex and cannot simultaneously transmit and receive useful signals. In this paper, we propose a novel solution for the peer-to-peer mutual broadcast problem, which exploits the multiaccess nature of the wireless medium and addresses the half-duplex constraint at the fundamental level. The defining feature of the scheme is to let all nodes send their messages at the same time, where each node broadcasts a codeword (selected from its unique codebook) consisting of on-slots and off-slots, where it transmits only during its on-slots, and listens to its peers through its own off-slots. Each node decodes the messages of its peers based on the received superposed signal...

  7. Climate Matters: Increasing Climate Literacy Through Broadcast Meteorologists

    Science.gov (United States)

    Sanford, T. J.; Placky, B. W.

    2015-12-01

    Broadcast meteorologists are among the most trusted members of the media landscape and they have a unique opportunity to reach the broad public with information about climate change. A recent survey by Maibach, et al. (2015) has shown that more than 90% of TV weathercasters think that their audience is at least somewhat interested in learning about the local impacts of climate change and 7 in 10 think that it is appropriate for them to report the science of climate change to their audience. But about half of these TV weathercasters have experienced obstacles to reporting climate change - citing lack of time to research and produce material, in addition to lack of access to appropriate visuals/graphics and access to trusted scientific information. Climate Matters is an NSF funded program that partners with broadcast meteorologists to deliver scientifically sound climate change information to the public that is local and relevant. A team of climate scientists, meteorologists, data analysts, journalists, and multimedia artists analyze and prepare content on a weekly basis so that it may be readily included in a broadcast weather segment, online or during community outreach. The program started as a pilot project with just one meteorologist in 2010 before Climate Central launched a full-time, nationwide program in 2012. Since then, Climate Matters has grown to include over 250 meteorologists strong and in more than 100 markets across the country, including Spanish language TV stations.

  8. Data Retrieval Scheduling For Unsynchronized Channel in Wireless Broadcast System

    Directory of Open Access Journals (Sweden)

    A. Vergin Janani

    2015-01-01

    Full Text Available Wireless data broadcast is a disseminating data into large number of mobile clients. In many information services, the users may query multiple data items at a time. The environment under consideration is asymmetric in that the information server has much more bandwidth available, as compared to the clients. To maximize the number of downloads given a deadline. It defines a problem called largest number data retrieval (LNDR. To prove the decision problem of LNDR is a NP hard, and to investigate approximation algorithm for it. It also define another problem called minimum cost data retrieval (MCDR, which aims at downloading a set of requested data items with the least response time and energy consumption. Data scheduling problem over unsynchronized channel at server side. In proposed system LNDR and MCDR in push based and pull based broadcast system are used. The proposed approximation algorithms efficiently schedule the data retrieval process of downloading multiple data from multiple channels. Push based and pull based broadcast model are used in unsynchronized channel. When the time needed for channel switching can be ignored, a Maximum Matching optimal algorithm is exhibited for LNDR which requires only polynomial time. The switching time cannot be neglected, finally to provide simulation results to demonstrate the practical efficiency of the proposed algorithms.

  9. A Quantum Broadcasting Problem in Classical Low Power Signal Processing

    CERN Document Server

    Janzing, D; Janzing, Dominik; Steudel, Bastian

    2006-01-01

    We pose a problem called ``broadcasting Holevo-information'': given an unknown state taken from an ensemble, the task is to generate a bipartite state transfering as much Holevo-information to each copy as possible. We argue that upper bounds on the average information over both copies imply lower bounds on the quantum capacity required to send the ensemble without information loss. This is because a channel with zero quantum capacity has a unitary extension transfering at least as much information to its environment as it transfers to the output. For an ensemble being the time orbit of a pure state under a Hamiltonian evolution, we derive such a bound on the required quantum capacity in terms of properties of the input and output energy distribution. Moreover, we discuss relations between the broadcasting problem and entropy power inequalities. The broadcasting problem arises when a signal should be transmitted by a time-invariant device such that the outgoing signal has the same timing information as the in...

  10. Solving Optimal Broadcasting Strategy in Metropolitan MANETs Using MOCELL Algorithm

    Directory of Open Access Journals (Sweden)

    M. Ghonamy

    2010-09-01

    Full Text Available Mobile ad-hoc networks (MANETs are a set of communicating devices that are able to spontaneously interconnect without any pre-existing infrastructure. In such a scenario, broadcasting becomes very important to the existence and the operation of this network. The process of optimizing the broadcast strategy of MANETs is a multi-objective problem with three objectives: (1 reaching as many stations as possible, (2 minimizing the network utilization and (3 reducing the broadcasting duration. The main contribution of this paper is that it tackles this problem by using multi-objective cellular genetic algorithm that is called MOCELL. MOCELL computes a Pareto front of solutions to empower a human designer with the ability to choose the preferred configuration for the network. Our results are compared with those obtained from the previous proposals used for solving the problem, a cellular multi-objective genetic algorithm which called cMOGA (the old version of MOCELL. We conclude that MOCELL outperforms cMOGA with respect to set coverage metric.

  11. Production and Utilization of Educational Broadcasting Programmes. Report of an APEID Technical Working Group Meeting on Educational Broadcasting (Kuala Lumpur, Malaysia, November 19-December 1, 1979).

    Science.gov (United States)

    United Nations Educational, Scientific, and Cultural Organization, Bangkok (Thailand). Regional Office for Education in Asia and Oceania.

    Members of the Technical Working Group representing 14 Unesco member states met (1) to review and discuss major problems, issues, and prospects in the region for educational broadcasting; (2) to identify training needs for promotion of educational broadcasting; and (3) to develop guidelines for the production, use, and evaluation of educational…

  12. Fuzzy-Logic Based Probabilistic Broadcasting Technique for Mobile Adhoc Networks

    Directory of Open Access Journals (Sweden)

    Tasneem Bano

    2012-05-01

    Full Text Available Broadcasting also called as flooding is one of the earliest research interests in mobile ad hoc networking. The main objective of broadcasting scheme is to avoid broadcast storm problem, provide good network performance and scalability. Existing probabilistic scheme consider only one parameter such as network density, node location or counter value in calculating probability value for broadcasting. These probability scheme cannot change their broadcasting approach even though the objectives of the system may change based on node characteristics or network conditions. There is no probabilistic broadcasting schemes which consider multiple parameters for determining the probability to broadcast. The parameters that greatly affect broadcasting is the network density, node location, etc. in this paper a new probabilistic broadcasting algorithm has been proposed that aims to utilize up to date local topological characteristics of intermediate nodes such as network density and node location. As we are using multiple values to calculate probability for broadcasting there is a need of optimization technique (such as Fuzzy Logic. With the use of fuzzy logic the proposed algorithm can keep good balance between rebroadcast efficiency, reachability and throughput.

  13. Three-Phase Scheme for Supporting Time-Constrained Data with Duplication in Wireless Broadcast Systems

    Science.gov (United States)

    Chen, Chao-Chun; Lin, Lien-Fa; Wang, Shih-Chia

    The wireless data broadcast techniques raised in 1990s. Since the wireless data dissemination techniques are emerged, more and more data services are proposed based on the wireless data broadcast techniques in these years. Among the new services, the time-constraint data broadcast service is critical for many real-time related applications, and has been studied in the recent years. However, the related works did not consider the duplicate pages of requests on data scheduling. Hence, in this paper, we consider the duplicate pages in the multi-page time-constraint data broadcast service. We first proposed a duplication page-optimized architecture for supporting the multi-page time-constraint data broadcast service. We then proposed a three-phase scheme for the time-slot sharing optimizer to improve the bandwidth utility of the TDA-based program. The experiments reveal that our proposed indeed significantly reduce the number of used channels for a data broadcast server.

  14. An Efficient Periodic Broadcasting with Small Latency and Buffer Demand for Near Video on Demand

    Directory of Open Access Journals (Sweden)

    Ying-Nan Chen

    2012-01-01

    Full Text Available Broadcasting Protocols can efficiently transmit videos that simultaneously shared by clients with partitioning the videos into segments. Many studies focus on decreasing clients' waiting time, such as the fixed-delay pagoda broadcasting (FDPB and the harmonic broadcasting schemes. However, limited-capability client devices such as PDAs and set-top boxes (STBs suffer from storing a significant fraction of each video while it is being watched. How to reduce clients' buffer demands is thus an important issue. Related works include the staircase broadcasting (SB, the reverse fast broadcasting (RFB, and the hybrid broadcasting (HyB schemes. This work improves FDPB to save client buffering space as well as waiting time. In comparison with SB, RFB, and HyB, the improved FDPB scheme can yield the smallest waiting time under the same buffer requirements.

  15. Novel scheme enabling broadcast signal transmission in WDM passive optical network

    Institute of Scientific and Technical Information of China (English)

    Xuejiao Ma; Chaoqin Gan

    2011-01-01

    @@ We present a novel method for providing broadcast signal transmission in a wavelength division multiplex-ing passive optical network (WDM-PON).An unmodulated optical carrier for downstream transmission and a pair of unmodulated single-side band subcarriers are utilized for broadcast delivery and upstream transmission, respectively.System performance at 2.5-Gb/s downlupstream and 2.5-Gb/s broadcast trans-mission is also investigated.%We present a novel method for providing broadcast signal transmission in a wavelength division multiplexing passive optical network (WDM-PON).An unmodulated optical carrier for downstream transmission and a pair of unmodulated single-side band subcarriers are utilized for broadcast delivery and upstream transmission, respectively.System performance at 2.5-Gb/s down/upstream and 2.5-Gb/s broadcast transmission is also investigated.

  16. The contradictions of broadcasting reform in post-apartheid South Africa

    OpenAIRE

    Barnett, Clive.

    1998-01-01

    This paper examines the process of mass media reform in South Africa during the 1990s, with particular reference to broadcasting. It identifies tensions between the attempt to restructure broadcasting as a public sphere capable of supporting national unification and democratization and i). the existence of socio-economic differentiation and cultural diversity at sub-national scales; and ii). the pressures which impinge upon the broadcasting sector as a result of policies aimed at internation...

  17. Some Aspects of Testing Process for Transport Streams in Digital Video Broadcasting

    OpenAIRE

    Arsinte, Radu; Ilioaei, Ciprian

    2008-01-01

    This paper presents some aspects related to the DVB (Digital Video Broadcasting) investigation. The basic aspects of DVB are presented, with an emphasis on DVB-T version of standard. The main purpose of this research is to analyze the way that the transmission of the transport streams is realized in case of the Terrestrial Digital Video Broadcasting (DVB-T). To accomplish this, first, Digital Video Broadcasting standard is presented, and then the main aspects of DVB testing and analysis of th...

  18. Technological, political and economic changes and their implications for the evolution of broadcasting services

    DEFF Research Database (Denmark)

    Tadayoni, Reza

    2000-01-01

    The subject of this Ph.D. thesis is changes in the market for broadcasting services as a result of technological, political, and economic drivers. Broadcasting services can be categorised as a part of the ICT-based information and knowledge intensive services that have gone through radical changes...... supply and demand sites, scarcity of transmission resources, and the historical aspects that make the development of the broadcasting service market different from other information and knowledge intensive services....

  19. MIMO for DVB-NGH, the next generation mobile TV broadcasting

    OpenAIRE

    Vargas Paredero, David Eduardo; Gozálvez Serrano, David; Gómez Barquero, David; Cardona Marcet, Narciso

    2013-01-01

    DVB-NGH (Digital Video Broadcasting - Next Generation Handheld) is the next generation technology for mobile TV broadcasting, which has been developed by the DVB project with the most advanced transmission technologies. DVB-NGH is the first broadcasting standard to incorporate multiple-input multiple-output (MIMO) as the key technology to overcome the Shannon limit of single antenna communications. MIMO techniques can be used to improve the robustness of the transmitted signal by exploiting t...

  20. Multichannel broadcast based on home channel for cognitive radio sensor networks.

    Science.gov (United States)

    Zeng, Fanzi; Tang, Yuting; Pu, Jianjie

    2014-01-01

    Considering the limited resources and the dynamic spectrum distribution in the cognitive radio sensor networks (CRSN), a half-duplex Multichannel broadcast protocol for CRSN is presented based on the home channel. This protocol maintains the networks topology only through the home channel, so there is no need for the public channel to transmit the control information and no need for the synchronization. After network initialization, node broadcasts data via home channel in half-duplex transmission way. The simulation results show that, compared with complete broadcast, the proposed protocol effectively reduces broadcast delay and overhead. PMID:25161397

  1. Reliable and Efficient Broadcasting in Asymmetric Mobile Ad Hoc Networks Using Minimized Forward Node List Algorithm

    Directory of Open Access Journals (Sweden)

    Marimuthu Murugesan

    2011-01-01

    Full Text Available Problem statement: Network wide broadcasting is a fundamental operation in ad hoc networks. In broadcasting, a source node sends a message to all the other nodes in the network. Unlike in a wired network, a packet transmitted by a node in ad hoc wireless network can reach all neighbors. Therefore, the total number of transmissions (Forwarding nodes used as the cost criterion for broadcasting. Approach: This study proposes a reliable and efficient broadcasting algorithm using minimized forward node list algorithm which uses 2-hop neighborhood information more effectively to reduce redundant transmissions in asymmetric Mobile Ad hoc networks that guarantees full delivery. Among the 1-hop neighbors of the sender, only selected forwarding nodes retransmit the broadcast message. Forwarding nodes are selected such a way that to cover the uncovered 2-hop neighbors. Results: Simulation results show that the proposed broadcasting algorithm provides high delivery ratio, low broadcast forward ratio, low overhead and minimized delay. Conclusion: In this study, reliable and efficient broadcasting algorithm in asymmetric Mobile Ad Hoc Networks using minimized forward node list algorithm has been proposed which provides low forward ratio, high delivery ratio while suppressing broadcast redundancy.

  2. Intelligent Broadcasting in Mobile Ad Hoc Networks: Three Classes of Adaptive Protocols

    Directory of Open Access Journals (Sweden)

    Michael D. Colagrosso

    2006-11-01

    Full Text Available Because adaptability greatly improves the performance of a broadcast protocol, we identify three ways in which machine learning can be applied to broadcasting in a mobile ad hoc network (MANET. We chose broadcasting because it functions as a foundation of MANET communication. Unicast, multicast, and geocast protocols utilize broadcasting as a building block, providing important control and route establishment functionality. Therefore, any improvements to the process of broadcasting can be immediately realized by higher-level MANET functionality and applications. While efficient broadcast protocols have been proposed, no single broadcasting protocol works well in all possible MANET conditions. Furthermore, protocols tend to fail catastrophically in severe network environments. Our three classes of adaptive protocols are pure machine learning, intra-protocol learning, and inter-protocol learning. In the pure machine learning approach, we exhibit a new approach to the design of a broadcast protocol: the decision of whether to rebroadcast a packet is cast as a classification problem. Each mobile node (MN builds a classifier and trains it on data collected from the network environment. Using intra-protocol learning, each MN consults a simple machine model for the optimal value of one of its free parameters. Lastly, in inter-protocol learning, MNs learn to switch between different broadcasting protocols based on network conditions. For each class of learning method, we create a prototypical protocol and examine its performance in simulation.

  3. Intelligent Broadcasting in Mobile Ad Hoc Networks: Three Classes of Adaptive Protocols

    Directory of Open Access Journals (Sweden)

    Colagrosso Michael D

    2007-01-01

    Full Text Available Because adaptability greatly improves the performance of a broadcast protocol, we identify three ways in which machine learning can be applied to broadcasting in a mobile ad hoc network (MANET. We chose broadcasting because it functions as a foundation of MANET communication. Unicast, multicast, and geocast protocols utilize broadcasting as a building block, providing important control and route establishment functionality. Therefore, any improvements to the process of broadcasting can be immediately realized by higher-level MANET functionality and applications. While efficient broadcast protocols have been proposed, no single broadcasting protocol works well in all possible MANET conditions. Furthermore, protocols tend to fail catastrophically in severe network environments. Our three classes of adaptive protocols are pure machine learning, intra-protocol learning, and inter-protocol learning. In the pure machine learning approach, we exhibit a new approach to the design of a broadcast protocol: the decision of whether to rebroadcast a packet is cast as a classification problem. Each mobile node (MN builds a classifier and trains it on data collected from the network environment. Using intra-protocol learning, each MN consults a simple machine model for the optimal value of one of its free parameters. Lastly, in inter-protocol learning, MNs learn to switch between different broadcasting protocols based on network conditions. For each class of learning method, we create a prototypical protocol and examine its performance in simulation.

  4. S-DARS broadcast from inclined, elliptical orbits

    Science.gov (United States)

    Briskman, Robert D.; Prevaux, Robert J.

    2004-04-01

    The first Sirius spacecraft was launched on July 1, 2000. Exactly 5 months later, on December 1, the third spacecraft was launched, completing the three satellite S-DARS (Satellite Digital Audio Radio Service) constellation. The three satellites are deployed in inclined, elliptical, geosynchronous orbits, which allow seamless broadcast coverage to mobile users in the contiguous US. Terrestrial broadcast repeaters provide service in urban cores. The system is in operation, providing the first ever S-DARS service. The constellation design results in satellite ground tracks over North America with two satellites always above the equator. High elevation look angles from the mobile ground terminals to the satellites minimize performance degradation due to blockage, foliage attenuation and multi-path. The spacecraft were built by Space Systems/Loral using the 1300 bus modified for operation in high inclination orbits. Each spacecraft was launched using a dedicated Russian Proton booster. The satellite payload is a bent pipe repeater using 7.1 GHz for the uplink and 2.3 GHz for the broadcast transmission. The repeater high-power amplification stage consists of 32 Traveling Wave Tube Amplifiers phase combined to yield a total radio frequency output power of nearly 4 kW at saturated operation. The satellite antennas are mechanically steered to maintain the transmit beam centered on the Contiguous United States and the receive beam centered on the uplink earth station located in Vernon Valley, New Jersey. The satellite payload design and performance are described. The principal spacecraft bus systems are described with emphasis on improvements made for operation in the inclined, elliptical geosynchronous orbits.

  5. [HYGIENIC ASSESSMENT OF WORKING CONDITIONS OF EMPLOYEES OF BROADCASTING CENTER].

    Science.gov (United States)

    Kovalenko, A V; Brusentsova, A V; Sokhoshko, I A; Rostikov, V P

    2015-01-01

    Hygienic assessment of working conditions of employees of the Omsk Regional Broadcasting Centre was performed on data of the analysis of materials of certification of workplaces. There were examined materials concerning 65 core profile workplaces, where 130 persons, including 35 women work. There was determined health risk for personnel in dependence on working conditions. The staff was noted to be exposed to the adverse impact of the following factors: chemical, physical (noise, general and local vibration, non-ionizing radiation, microclimate, lighting), severity and intensity ofwork. Class working conditions for 13,5% of workplaces on noise, 35.4% on non-ionizing radiation was assessed as a harmful of the first degree. Lightness indices at 78.5% of the workplaces did not meet the requirements of sanitary norms. At 7.7% of the workplaces levels of hardness of labor were assessed as harmful. The impact of such factors as biological, infrasound, ultrasound, ionizing radiation, aerosols with mainly fibrogenic action, was absent, their assessment was not carried out. Working conditions at 83.1% of workplaces were characterized as hazardous, including at 52.3% of the workplaces where there was established hazard class 3.1, at 30.7% of workplaces--Class 3.2. Among all the factors of occupational environment the largest contribution into the overall assessment of working conditions was made by the lightness factor (50.9%) and non-ionizing radiation (20.6%). The most harmful working conditions have been identified for workplaces of the operator of masthead antenna, engineer of radiocommunications, broadcasting and television, electromechanician of television (radiocommunication), (broadcasting), car driver. PMID:26856168

  6. A Dynamic Probabilistic Based Broadcasting Scheme for MANETs.

    Science.gov (United States)

    Shanmugam, Kannan; Subburathinam, Karthik; Palanisamy, Arunachalam Velayuthampalayam

    2016-01-01

    MANET is commonly known as Mobile Ad Hoc Network in which cluster of mobile nodes can communicate with each other without having any basic infrastructure. The basic characteristic of MANET is dynamic topology. Due to the dynamic behavior nature, the topology of the network changes very frequently, and this will lead to the failure of the valid route repeatedly. Thus, the process of finding the valid route leads to notable drop in the throughput of the network. To identify a new valid path to the targeted mobile node, available proactive routing protocols use simple broadcasting method known as simple flooding. The simple flooding method broadcasts the RREQ packet from the source to the rest of the nodes in mobile network. But the problem with this method is disproportionate repetitive retransmission of RREQ packet which could result in high contention on the available channel and packet collision due to extreme traffic in the network. A reasonable number of routing algorithms have been suggested for reducing the lethal impact of flooding the RREQ packets. However, most of the algorithms have resulted in considerable amount of complexity and deduce the throughput by depending on special hardware components and maintaining complex information which will be less frequently used. By considering routing complexity with the goal of increasing the throughput of the network, in this paper, we have introduced a new approach called Dynamic Probabilistic Route (DPR) discovery. The Node's Forwarding Probability (NFP) is dynamically calculated by the DPR mobile nodes using Probability Function (PF) which depends on density of local neighbor nodes and the cumulative number of its broadcast covered neighbors. PMID:27019868

  7. The prototype message broadcast system for the Superconducting Super Collider

    International Nuclear Information System (INIS)

    A prototype unified message broadcast system to handle the site-wide distribution of all control system messages for the Superconducting Super Collider is presented. The messages are assembled in the control room area and encapsulated for transmission via a general fiber-optic link system to devices distributed throughout 70 miles of tunnels. An embedded timing signal is used by the distribution system to ensure that messages arrive at all devices simultaneously. Devices receive messages using a special receiver sub-system. A simple version of this system is to be used in the Accelerator Systems String Test (ASST) at the SSC site in 1991. 3 refs., 6 figs., 1 tab

  8. The prototype message broadcast system for the superconducting super collider

    International Nuclear Information System (INIS)

    This paper presents a prototype unified message broadcast system to handle the site-wide distribution of all control system messages for the Superconducting Super Collider. The messages are assembled in the control room area and encapsulated for transmission via a general fiber-optic link system to devices distributed throughout 70 miles of tunnels. An embedded timing signal is used by the distribution system to ensure that messages arrive at all devices simultaneously. Devices receive messages using a special receiver sub-system

  9. The prototype message broadcast system for the superconducting super collider

    International Nuclear Information System (INIS)

    This paper presents a prototype unified message broadcast system to handle the site-wide distribution of all control system messages for the Superconducting Super Collider. The messages are assembled in the control room area and encapsulated for transmission via a general fiber-optic link system to devices distributed throughout 70 miles of tunnels. An embedded timing signal is used by the distribution system to ensure that messages arrive at all devices simultaneously. Devices receive messages using a special receiver sub-system. A simple version of this system is to be used in the Accelerator Systems String Test (ASST) at the SSC site in 1991

  10. Security Analysis of Broadcaster Group Key Exchange Protocols

    Institute of Scientific and Technical Information of China (English)

    LI Li; ZHANG Huanguo

    2006-01-01

    Group key exchange protocols are basic protocols to provide privacy and integrity in secure group communication. This paper discusses the security of one type of group key exchange protocols and defines the kind of protocols as broadcaster group protocols. It points out two attacks on this kind of protocols. The first attack can be avoided by using fresh values in each action during one session of the group protocol. The second attack should be related with concrete application. It also proposes a dynamic key agreement protocol as an example of solutions at the last part of the paper.

  11. Quantum broadcasting multiple blind signature with constant size

    Science.gov (United States)

    Xiao, Min; Li, Zhenli

    2016-06-01

    Using quantum homomorphic signature in quantum network, we propose a quantum broadcasting multiple blind signature scheme. Different from classical signature and current quantum signature schemes, the multi-signature proposed in our scheme is not generated by simply putting the individual signatures together, but by aggregating the individual signatures based on homomorphic property. Therefore, the size of the multi-signature is constant. Furthermore, based on a wide range of investigation for the security of existing quantum signature protocols, our protocol is designed to resist possible forgery attacks against signature and message from the various attack sources and disavowal attacks from participants.

  12. Do pirates play fair? Ethical judgment of unauthorized sports broadcasts

    OpenAIRE

    Michał Krawczyk; Joanna Tyrowicz; Anna Kukla-Gryz; Wojciech Hardy

    2015-01-01

    Ethical norms on the Internet are believed to be more permissive than in the ‘real’ world and this belief often serves as an explanation for the prevalence of the so-called digital “piracy”. In this study we provide evidence from a vignette experiment that contradicts this claim. Analyzing the case of sports broadcast, we compare explicitly the ethical judgment of legal and illegal sharing in the offline and online context. We find that the norms concerning legality, availability of alternati...

  13. A Broadcasting History of Malaysia: Progress and Shifts

    OpenAIRE

    Roslina Abdul Latif; Wan Amizah Wan Mahmud; Ali Salman

    2013-01-01

    This paper aims to delve into the history of broadcasting in Malaysia since the 1980s. We will go down memorylane and see the inception of the first private television station in the country - Sistem Television MalaysiaBerhad (STMB) or better known as TV3 which received its licensed in 1983. This paper also looks at thequestion of ownership as there are strong political and economic ties between the government and the media.While privatization is a goal in the business sector, a free press wi...

  14. On-chip bus standards in a broadcast architecture

    OpenAIRE

    Romaguera i Restudis, Josep-Oriol

    2012-01-01

    [ANGLÈS] This final project has been developed in the School of Electrical Engineering (in Aalto University) and its main goal is to value whether AMBA (Advanced Microcontroller Bus Architecture) is a good option to develop an on-chip broadcast architecture. To carry it out, various alternatives are taken in account: use full AMBA (with all its signals), use CAN (Controller Area Network) bus instead of AMBA, and use modified AMBA (using only the signals that will be used). Once one alternativ...

  15. Practical IP and telecom for broadcast engineering and operations

    CERN Document Server

    Huffman, Fred

    2004-01-01

    What you need to know to survive, long term. Interests between broadcasters and telecom people are blurring. Technical operations and design engineers in one field are increasingly required to deal with practices and techniques in the other. The problem is expectations and terminology differences aren't recognized until it's too late. Take "Quality of Service." The telecom people specify a percentage of the time that the service is guaranteed to be available. The down time may be very, very small. But, if it occurs during a high-priced commercial in the Super Bowl, it is very, very s

  16. Use of virtual sets in the broadcasting of major events

    Directory of Open Access Journals (Sweden)

    Cesáreo Fernández Fernández, PhD.

    2011-01-01

    Full Text Available In 2000, the BBC virtual studios expert, Danny Popkin, criticised the television industry for making a poor use of virtual technology. Ten years later the situation has not improved significantly. So far, virtual studios are seen just as good technological tools to save money and time in the production of news, children’s programming, commercials and elections coverage. However, the virtual studio must also enhance realism, improve the presentation of information, and increase entertainment. In order to help broadcasters achieving these goals, this article describes six examples of special television programmes, from 1996 to 2009, which presented some ideas to improve the quality and richness of the audiovisual language.

  17. Digital video and audio broadcasting technology a practical engineering guide

    CERN Document Server

    Fischer, Walter

    2010-01-01

    Digital Video and Audio Broadcasting Technology - A Practical Engineering Guide' deals with all the most important digital television, sound radio and multimedia standards such as MPEG, DVB, DVD, DAB, ATSC, T-DMB, DMB-T, DRM and ISDB-T. The book provides an in-depth look at these subjects in terms of practical experience. In addition it contains chapters on the basics of technologies such as analog television, digital modulation, COFDM or mathematical transformations between time and frequency domains. The attention in the respective field under discussion is focussed on aspects of measuring t

  18. Satellite Media Broadcasting with Adaptive Coding and Modulation

    Directory of Open Access Journals (Sweden)

    Georgios Gardikis

    2009-01-01

    Full Text Available Adaptive Coding and Modulation (ACM is a feature incorporated into the DVB-S2 satellite specification, allowing real-time adaptation of transmission parameters according to the link conditions. Although ACM was originally designed for optimizing unicast services, this article discusses the expansion of its usage to broadcasting streams as well. For this purpose, a general cross-layer adaptation approach is proposed, along with its realization into a fully functional experimental network, and test results are presented. Finally, two case studies are analysed, assessing the gain derived by ACM in a real large-scale deployment, involving HD services provision to two different geographical areas.

  19. A server application for Traffic Information Service : Broadcast

    OpenAIRE

    Antonsson, Daniel

    2003-01-01

    The need for increased safety and efficiency in civil aviation is pushing the introduction of Automatic Dependent Surveillance - Broadcast (ADS-B). The basic principle of ADS-B is that each aircraft is able to communicate its position and status over a radio data link to surrounding aircraft. In this way each aircraft obtains a detailed picture of the surrounding traffic. During a period of transition from today's radar surveillance to ADS-B many aircraft will not be equipped with the new dat...

  20. The state of broadcast meteorology in the United States

    Science.gov (United States)

    Trobec, J.

    2010-09-01

    According to a 2010 study by the Radio, Television Digital News Association, there are 762 television stations in the U.S. producing local news (and presumably weather) content. Those stations reported staff reductions of 400 news department jobs in 2009, following a cut of 1,200 local news jobs in 2008. Even as the number of news employees declined, local stations increased the amount of local news programming from an average of 4.7 hours to 5.0 hours per weekday in the past year. The phrase "doing more with less" has become a common theme in television newsrooms. Broadcasting economics have also impacted the approximately 2,200 weather presenters on local television stations. Several high-profile, on-air meteorologists have lost their jobs. The workload of weather presenters is evolving as television stations extend their reach beyond broadcasting — to the internet, and wireless (e.g. cellular telephone) delivery of information. Technological advancements have improved televised severe weather coverage. The number of amateur storm chasers possessing video streaming equipment has grown signicantly, and social networks such as Twitter have become a useful source of weather reports from the public.

  1. MIMO Broadcasting for Simultaneous Wireless Information and Power Transfer

    CERN Document Server

    Zhang, Rui

    2011-01-01

    This paper studies the performance limits of multi-antenna wireless broadcasting systems for simultaneous information and power (energy) transfer. For the purpose of exposition, a three-node network is investigated, in which one receiver harvests energy and another receiver decodes information separately from the signals broadcast by a common transmitter. Two scenarios are examined, where the information receiver and energy receiver are separated and see different channels from the transmitter, or co-located and see the same channel from the transmitter. For the case of separated receivers, we derive the optimal transmission strategies to achieve different tradeoffs for maximal information rate versus energy transfer, which are characterized by the boundary of a so-called rate-energy (R-E) region. For the case of co-located receivers, we show an outer bound for the achievable R-E region, due to the potential limitation that practical circuits for harvesting energy from radio signals are not yet able to decode...

  2. Microcontroller Protocol for Secure Broadcast in Controller Area Networks

    Directory of Open Access Journals (Sweden)

    B.Vijayalakshmi

    2014-04-01

    Full Text Available Controller Area Network is a bus commonly used by controllers inside vehicles and in various industrial control applications. In the past controllers were assumed to operate in secure perimeters, but today these environments are well connected to the outside world and recent incidents showed them extremely vulnerable to cyber-attacks. To withstand such threats, one can implement security in the application layer of CAN. Here we design, refine and implement a broadcast authentication protocol based on the well known paradigm of using key-chains and time synchronization, a commonly used Mechanism in wireless sensor networks, which allows us to take advantage from the use of symmetric primitives without the need of secret shared keys during broadcast. But, as process control is a time critical operation we make several refinements in order to improve on the authentication delay. For this we study several trade-offs to alleviate shortcomings on computational speed, memory and bandwidth up to the point of using reduced versions of hash functions that can assure ad hoc security. To prove the efficiency of the protocol

  3. RSS based CERN Alerter. Information broadcast to all CERN offices.

    CERN Multimedia

    Otto, R

    2007-01-01

    Nearly every large organization uses a tool to broadcast messages and information across the internal campus (messages like alerts announcing interruption in services or just information about upcoming events). These tools typically allow administrators (operators) to send "targeted" messages which are sent only to specific groups of users or computers, e/g only those located in a specified building or connected to a particular computing service. CERN has a long history of such tools: CERNVMS€™s SPM_quotMESSAGE command, Zephyr and the most recent the NICE Alerter based on the NNTP protocol. The NICE Alerter used on all Windows-based computers had to be phased out as a consequence of phasing out NNTP at CERN. The new solution to broadcast information messages on the CERN campus continues to provide the service based on cross-platform technologies, hence minimizing custom developments and relying on commercial software as much as possible. The new system, called CERN Alerter, is based on RSS (Really Simpl...

  4. RBO Protocol: Broadcasting Huge Databases for Tiny Receivers

    CERN Document Server

    Kik, Marcin

    2011-01-01

    We propose a protocol (called RBO) for broadcasting long streams of single-packet messages over radio channel for tiny, battery powered, receivers. The messages are labeled by the keys from some linearly ordered set. The sender repeatedly broadcasts a sequence of many (possibly millions) of messages, while each receiver is interested in reception of a message with a specified key within this sequence. The transmission is arranged so that the receiver can wake up in arbitrary moment and find the nearest transmission of its searched message. Even if it does not know the position of the message in the sequence, it needs only to receive a small number of (the headers of) other messages to locate it properly. Thus it can save energy by keeping the radio switched off most of the time. We show that bit-reversal permutation has "recursive bisection properties" and, as a consequence, RBO can be implemented very efficiently with only constant number of $\\log_2 n$-bit variables, where $n$ is the total number of messages...

  5. 75 FR 76731 - Request for Comment for Report on In-State Broadcast Programming

    Science.gov (United States)

    2010-12-09

    ... FR 24121 (1998). Electronic Filers: Comments may be filed electronically using the Internet by... COMMISSION Request for Comment for Report on In-State Broadcast Programming AGENCY: Federal Communications...) requires the Commission to submit a report on in- state broadcast programming to the...

  6. 47 CFR 73.4082 - Comparative broadcast hearings-specialized programming formats.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Comparative broadcast hearings-specialized programming formats. 73.4082 Section 73.4082 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED... Comparative broadcast hearings—specialized programming formats. (a) See Memorandum Opinion and Order, FCC...

  7. Augmenting a TV Broadcast with Synchronised User Generated Video and Relevant Social Network Content

    NARCIS (Netherlands)

    Stokking, H.M.; Veenhuizen, A.T.; Kaptein, A.M.; Niamut, O.A.

    2014-01-01

    As TNO, we have developed an Augmented Live Broadcast use case, using components from the FP7 STEER project. In this use case, a television broadcast of a live event is augmented with user generated content. This user generated content consists of videos made by users at the event, and also of relev

  8. All-optical broadcast and multicast technologies based on PPLN waveguide

    DEFF Research Database (Denmark)

    Ye, Lingyun; Wang, Ju; Hu, Hao;

    2013-01-01

    All-optical 1×4 broadcast and 1×3 multicast experiments of a 40-Gb/s return-to-zero on-off keying (RZ-OOK) signal based on a periodically poled lithium niobate (PPLN) waveguide are demonstrated in this letter. Clear opened eye diagrams and error-free performance are achieved for the broadcast...

  9. CHAOS: User-driven Development of a Metadata Scheme for Radio Broadcast Archives

    DEFF Research Database (Denmark)

    Lund, Haakon; Bogers, Toine; Larsen, Birger; Lykke, Marianne

    CHAOS (Cultural Heritage Archive Open System) is a digital platform for Danish radio broadcasts. Radio broadcasts are an important and vibrant part of our cultural heritage, but providing efficient and effective access to such archives is challenging for lack of a solid digital infrastructure. The...

  10. The Institutional Context of Industry Consolidation: Radio Broadcasting in the United States, 1920-1934

    Science.gov (United States)

    Lippmann, Stephen

    2007-01-01

    Shortly after the first commercial radio broadcast in 1920, the medium's popularity exploded and the number of stations on the dial grew tremendously. By 1930, however, a mere 10 years after the first radio broadcast occurred, the industry was dominated by large, commercial stations who sold advertising time in a variety of forms and were operated…

  11. Coherent detection passive optical access network enabling converged delivery of broadcast and dedicated broadband services

    DEFF Research Database (Denmark)

    Osadchiy, Alexey Vladimirovich; Prince, Kamau; Guerrero Gonzalez, Neil;

    2011-01-01

    We propose a passive optical network architecture based on coherent detection for converged delivery of broadcast services from a dedicated remote broadcast server and user-specific services from a local central office. We experimentally demonstrate this architecture with mixed traffic types...

  12. Features of a reciprocating sprout-broadcaster in the process of granular fertilizer application

    NARCIS (Netherlands)

    Speelman, L.

    1979-01-01

    IntroductionSince the end of the 1950's, variable bout width distributors were used for broadcast application of granular fertilizers. The bout width is a multiple of the width of the metering and distribution devices. The most important types are the spinning disc and reciprocating sprout broadcast

  13. 77 FR 27631 - Standardized and Enhanced Disclosure Requirements for Television Broadcast Licensee Public...

    Science.gov (United States)

    2012-05-11

    ... seeking comment on the projected burdens of the rules. See 73 FR 13462 (Mar. 13, 2008); 73 FR 30316 (May... and related materials, EEO materials, The Public and Broadcasting manual, children's television... COMMISSION 47 CFR Part 73 Standardized and Enhanced Disclosure Requirements for Television Broadcast...

  14. 76 FR 72144 - Standardized and Enhanced Disclosure Requirements for Television Broadcast Licensee Public...

    Science.gov (United States)

    2011-11-22

    ... Disclosure Requirements for Television Broadcast Licensee Public Interest Obligations, Erratum, 73 FR 30316... held by the Commission; the public and broadcasting; Children's television programming reports; and DTV..., Notice of Proposed Rulemaking, 65 FR 62683 (2000) (``NPRM''); In the Matter of Public...

  15. 78 FR 14060 - Television Broadcasting Services; Seaford, Delaware and Dover, Delaware

    Science.gov (United States)

    2013-03-04

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Seaford, Delaware and Dover, Delaware AGENCY... CFR 1.415 and 1.420. List of Subjects in 47 CFR Part 73 Television, Television broadcasting. Federal... with its first local television service, and that Seaford will remain well-served after the...

  16. A Cost Analysis of Minimum Distance TV Networking for Broadcasting Medical Information.

    Science.gov (United States)

    Dei Rossi, J. A.; And Others

    Two specific applications for networks might be used to serve the biomedical community: (1) networking of the nation's educational television (ETV) stations for occasional or one-time broadcasting and (2) networking of the nation's medical schools for continuous broadcasting. These two applications are analyzed in detail. A second contribution of…

  17. 75 FR 81190 - Television Broadcasting Services; Vernal and Santaquin, UT, and Ely and Caliente, NV

    Science.gov (United States)

    2010-12-27

    ... COMMISSION 47 CFR Part 73 Television Broadcasting Services; Vernal and Santaquin, UT, and Ely and Caliente.... The Commission was required by the DTV Delay Act to ] terminate all licenses for full-power television stations and broadcasting by full power stations in the analog service by June 13, 2009. Therefore,...

  18. 47 CFR 73.4265 - Telephone conversation broadcasts (network and like sources).

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Telephone conversation broadcasts (network and like sources). 73.4265 Section 73.4265 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED... Telephone conversation broadcasts (network and like sources). See Memorandum Opinion and Order, FCC...

  19. 47 CFR 73.4157 - Network signals which adversely affect affiliate broadcast service.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Network signals which adversely affect affiliate broadcast service. 73.4157 Section 73.4157 Telecommunication FEDERAL COMMUNICATIONS COMMISSION....4157 Network signals which adversely affect affiliate broadcast service. See Public Notice, FCC...

  20. Socio-Economic Aspects of National Communication Systems: III. Radio Broadcasting in Venezuela. Communication and Society, 12.

    Science.gov (United States)

    Capriles, Oswaldo; And Others

    The third in a series that examines the role of radio broadcasting in the process of socioeconomic and cultural change in three countries with different types of broadcasting organization--Austria, Czechoslovakia, and Venezuela--this volume focuses on Venezuela. An overview of radio broadcasting in Venezuela describes various aspects and provides…

  1. Socio-Economic Aspects of National Communication Systems. I. Radio Broadcasting in Austria. Communication and Society, 10.

    Science.gov (United States)

    Signitzer, Benno; Luger, Kurt

    The first in a series that examines the role of radio broadcasting in the process of socioeconomic and cultural change in three countries with different types of broadcasting organization--Austria, Czechoslovakia, and Venezuela--this volume focuses on Austria. It deals with the cultural implications of broadcasting structures and their ownership…

  2. Socio-Economic Aspects of National Communication Systems: II. Radio Broadcasting in Czechoslovakia. Communication and Society, 11.

    Science.gov (United States)

    Bunzlova, Alice; Slovak, Leopold

    The second in a series that examines the role of radio broadcasting in the process of socioeconomic and cultural change in three countries with different types of broadcasting organization--Austria, Czechoslovakia, and Venezuela--this volume focuses on Czechoslovakia. It deals with the cultural implications of broadcasting structures and their…

  3. 47 CFR 73.757 - System specifications for single-sideband (SSB) modulated emissions in the HF broadcasting service.

    Science.gov (United States)

    2010-10-01

    ...) modulated emissions in the HF broadcasting service. 73.757 Section 73.757 Telecommunication FEDERAL... broadcasting service. (a) System parameters—(1) Channel spacing. In a mixed DSB, SSB and digital environment... broadcasting does not require a frequency tolerance less than 10 Hz. The degradation mentioned in Note 1...

  4. 22 CFR 501.9 - Interchange of FSOs between Broadcasting Board of Governors and other Foreign Affairs Agencies.

    Science.gov (United States)

    2010-04-01

    ... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Interchange of FSOs between Broadcasting Board of Governors and other Foreign Affairs Agencies. 501.9 Section 501.9 Foreign Relations BROADCASTING... Broadcasting Board of Governors and other Foreign Affairs Agencies. Foreign Service Officers (FSOs)...

  5. 37 CFR 381.4 - Performance of musical compositions by PBS, NPR and other public broadcasting entities engaged in...

    Science.gov (United States)

    2010-07-01

    ... compositions by PBS, NPR and other public broadcasting entities engaged in the activities set forth in 17 U.S.C... NONCOMMERCIAL EDUCATIONAL BROADCASTING § 381.4 Performance of musical compositions by PBS, NPR and other public broadcasting entities engaged in the activities set forth in 17 U.S.C. 118(c). The following schedule of...

  6. 37 CFR 381.5 - Performance of musical compositions by public broadcasting entities licensed to colleges and...

    Science.gov (United States)

    2010-07-01

    ... compositions by public broadcasting entities licensed to colleges and universities. 381.5 Section 381.5 Patents... LICENSES USE OF CERTAIN COPYRIGHTED WORKS IN CONNECTION WITH NONCOMMERCIAL EDUCATIONAL BROADCASTING § 381.5 Performance of musical compositions by public broadcasting entities licensed to colleges and universities....

  7. 37 CFR 253.4 - Performance of musical compositions by PBS, NPR and other public broadcasting entities engaged in...

    Science.gov (United States)

    2010-07-01

    ... compositions by PBS, NPR and other public broadcasting entities engaged in the activities set forth in 17 U.S.C... NONCOMMERCIAL EDUCATIONAL BROADCASTING § 253.4 Performance of musical compositions by PBS, NPR and other public broadcasting entities engaged in the activities set forth in 17 U.S.C. 118(d). The following schedule of...

  8. Hiding in Plain Sight: Exploiting Broadcast for Practical Host Anonymity

    Energy Technology Data Exchange (ETDEWEB)

    Shue, Craig A [ORNL; Gupta, Prof. Minaxi [Indiana University

    2010-01-01

    Users are being tracked on the Internet more than ever before as Web sites and search engines gather pieces of information sufficient to identify and study their behavior. While many existing schemes provide strong anonymity, they are inappropriate when high bandwidth and low latency are required. In this work, we explore an anonymity scheme for end hosts whose performance makes it possible to have it always on. The scheme leverages the natural grouping of hosts in the same subnet and the universally available broadcast primitive to provide anonymity at line speeds. Our scheme is strongly resistant against all active or passive adversaries as long as they are outside the subnet. Even within the subnet, our scheme provides reasonable resistance against adversaries, providing anonymity that is suitable for common Internet applications.

  9. The costs and economics of broadcast satellite systems

    Science.gov (United States)

    Biggs, P. D.

    1982-04-01

    The total cost of a broadcast satellite system comprises the costs of manufacture, launch, insurance, and telemetry, tracking, and command. It is estimated that the first component, that of manufacture, will make up approximately 40% of the total. The cost of launch is put at 15-25 million pounds sterling (which includes the cost of the perigee stage) if the NASA Space Transportation System is used. The costs for insurance will cover liabilities to third parties, life insurance for the satellite while in orbit, and insurance against mishaps during the launch and ascent into orbit. With regard to financing, it is noted that, as space systems have become more reliable, investors have shown greater willingness to provide the capital. It is also noted that leasing arrangements may be possible.

  10. Watermark in the Digital Video Broadcasting Handheld Transmission Signal

    Institute of Scientific and Technical Information of China (English)

    HU Ling-na; JIANG Ling-ge; HE Chen; YANG Feng

    2009-01-01

    Transmitter identification (TxID) technique is used to diagnose the operation status of radio trans-mitters in DTV distributed transmission network. A new TxID method for digital video broadcasting-handheld (DVB-H) system is proposed. Watermark is embedded in the DVB-H signal to form the composite signal. Ac-cording to watermarking theory we demonstrate the required signal level for watermarking signal to achieve given bit error Probability under different circumstance. By selecting the reference pattern to generate watermarking signal, peak-to-average power ratio (PAPR) of the transmitted signal can be improved. Simulation results show that even in wireless situation the receiver can distinguish the watermarking signal with low embedding strength, and distortion to the host signal can also be ignored.

  11. Nation Binding: How Public Service Broadcasting Mitigates Political Selective Exposure

    Science.gov (United States)

    Kruikemeier, Sanne; de Vreese, Claes

    2016-01-01

    Recent research suggests that more and more citizens select news and information that is congruent with their existing political preferences. This increase in political selective exposure (PSE) has allegedly led to an increase in polarization. The vast majority of studies stem from the US case with a particular media and political system. We contend that there are good reasons to believe PSE is less prevalent in other systems. We test this using latent profile analysis with national survey data from the Netherlands (n = 2,833). We identify four types of media use profiles and indeed only find partial evidence of PSE. In particular, we find that public broadcasting news cross-cuts all cleavages. This research note offers an important antidote in what is considered a universal phenomenon. We do find, however, a relatively large segment of citizens opting out of news consumption despite the readily available news in today’s media landscape. PMID:27218659

  12. Transportable IOT measurement station for direct-broadcast satellites

    Science.gov (United States)

    Ulbricht, Michael

    A transportable 11.7-12.5-GHz flux-density measurement facility for use in the in-orbit testing (IOT) of the FRG TV-Sat direct-broadcast satellites is described. Major components include a 1.2-m-diameter antenna, the fluxmeter, a radiometer to determine atmospheric attenuation, a weather station, and a control and data-processing computer; all of the components are mounted on a 5.10 x 2.35 x 2.70-m trailer. IOT performance parameters include gain/temperature ratio 15.9 dB/K, measurement range -97 to -117 dBW/sq m, measurement accuracy less than 0.5 dB rms, and measurement rate 250-650 msec. Photographs and a block diagram are provided.

  13. Broadcasting of cortical activity to the olfactory bulb.

    Science.gov (United States)

    Boyd, Alison M; Kato, Hiroyuki K; Komiyama, Takaki; Isaacson, Jeffry S

    2015-02-24

    Odor representations are initially formed in the olfactory bulb, which contains a topographic glomerular map of odor molecular features. The bulb transmits sensory information directly to piriform cortex, where it is encoded by distributed ensembles of pyramidal cells without spatial order. Intriguingly, piriform cortex pyramidal cells project back to the bulb, but the information contained in this feedback projection is unknown. Here, we use imaging in awake mice to directly monitor activity in the presynaptic boutons of cortical feedback fibers. We show that the cortex provides the bulb with a rich array of information for any individual odor and that cortical feedback is dependent on brain state. In contrast to the stereotyped, spatial arrangement of olfactory bulb glomeruli, cortical inputs tuned to different odors commingle and indiscriminately target individual glomerular channels. Thus, the cortex modulates early odor representations by broadcasting sensory information diffusely onto spatially ordered bulbar circuits. PMID:25704808

  14. Nation Binding: How Public Service Broadcasting Mitigates Political Selective Exposure.

    Science.gov (United States)

    Bos, Linda; Kruikemeier, Sanne; de Vreese, Claes

    2016-01-01

    Recent research suggests that more and more citizens select news and information that is congruent with their existing political preferences. This increase in political selective exposure (PSE) has allegedly led to an increase in polarization. The vast majority of studies stem from the US case with a particular media and political system. We contend that there are good reasons to believe PSE is less prevalent in other systems. We test this using latent profile analysis with national survey data from the Netherlands (n = 2,833). We identify four types of media use profiles and indeed only find partial evidence of PSE. In particular, we find that public broadcasting news cross-cuts all cleavages. This research note offers an important antidote in what is considered a universal phenomenon. We do find, however, a relatively large segment of citizens opting out of news consumption despite the readily available news in today's media landscape. PMID:27218659

  15. Positioning models and systems based on digital television broadcasting signals

    Institute of Scientific and Technical Information of China (English)

    HE Feng; WU Lenan

    2007-01-01

    The requirement and feasibility of the positioning system using digital television(DTV)broadcasting signals are analyzed.The principle of DTV positioning on the basis of frame synchronization is brought forward and the ranging characteristic is studied that the observables are asynchronously measured during the same epoch interval.The models of the pseudo-range observation and Doppler carrier phase integral are researched.The system observation and state equations are presented on the basis of the above models.The simulation results showed that DTV positioning technology could remarkably improve the precision of system state estimates using smoothing methods for positioning systems or integrated navigation systems.The DTV positioning that has a sub-meter level ranging error and meter level positioning accuracy can parallel with and even taken as a beneficial substitute for the tradition positioning technology.

  16. Compressive sensing for feedback reduction in MIMO broadcast channels

    KAUST Repository

    Eltayeb, Mohammed E.

    2014-09-01

    In multi-antenna broadcast networks, the base stations (BSs) rely on the channel state information (CSI) of the users to perform user scheduling and downlink transmission. However, in networks with large number of users, obtaining CSI from all users is arduous, if not impossible, in practice. This paper proposes channel feedback reduction techniques based on the theory of compressive sensing (CS), which permits the BS to obtain CSI with acceptable recovery guarantees under substantially reduced feedback overhead. Additionally, assuming noisy CS measurements at the BS, inexpensive ways for improving post-CS detection are explored. The proposed techniques are shown to reduce the feedback overhead, improve CS detection at the BS, and achieve a sum-rate close to that obtained by noiseless dedicated feedback channels.

  17. Broadcast yourself: ¿oxímoron o confusión entre medios? Broadcast Yourself: Oxymoron or Media Mistake?

    Directory of Open Access Journals (Sweden)

    José Luis Fernández

    2009-10-01

    Full Text Available En este trabajo se analiza el hecho de que Internet ofrezca la posibilidad de seleccionar los contenidos que construirían radios individualizadas. Cada usuario de la Red podría ahora seleccionar contenidos radiofónicos reemplazando a las emisoras de radio tradicionales que siempre han transmitido en modelo «broadcasting». Se exponen resultados previos de nuestras investigaciones que permiten comparar la radio todavía existente con algunas de las ofertas presentes en la Red. La comparación permite en las conclusiones establecer la presencia de dos procedimientos de escucha de radio en la Red: el habitual, que permite la coexistencia entre escucha y práctica social paralela (trabajo, conducción de automóviles, etc. y el propio de Internet, frente en la web de la emisora, que obliga a la atención visual además de la sonora. Resulta inevitable considerar a este último como una pérdida, frente la independencia visual que la radio siempre ha permitido. This article analyses the possibility offered by the Internet to select radio content to build customized radios. Each internet user could select radio content, replacing the traditional radio stations that have always broadcasted. Previous results from our investigations are presented to allow us to compare the still-existing traditional radio to some of the offers on the Internet. Such a comparison will allow us to determine two different ways of listening to the radio on the Internet: the usual one, which allows the coexistence of listening and any parallel social practice (work, driving, etc., and another one, appropriate to the internet, that adds visual attention to hearing. It is unavoidable to consider this as a loss compared to the visual independence that radio has always allowed.

  18. Illumination of the Air Environment Using Radiation of HF Broadcast Stations

    Science.gov (United States)

    Lutsenko, V. I.; Lutsenko, I. V.; Popov, I. V.

    2015-06-01

    We consider the possibility of using illumination of the HF broadcast stations for location of air objects. The relationships for estimation of the detection range are obtained and requirements for the degree of suppression of a direct signal from the broadcast station are determined. Spectral characteristics of the signals from HF broadcast stations are studied experimentally for different polarizations of the received radiation. The possibility of air object detection using the Doppler effect is shown. Theoretical estimates of the radar cross section of air objects for different polarizations of the incident radiation are given. It is found experimentally that the radar cross section is about the same for the vertical and horizontal polarizations.

  19. The Olympic Games broadcasted as Interactive Television - New Media new Games?

    DEFF Research Database (Denmark)

    Bjørner, Thomas

    The Olympic Games is the world´s largest media event and television is the engine that has driven the growth of the Olympic Movement. Increases in broadcast revenue over the past two decades have provided the Olympic Movement with a huge financial base. More networks than ever before broadcast...... could change how the viewers watch the Olympic Games. New media initiatives will increase significantly, not only in the broadcast of television but also with broadband Internet coverage of the Olympic Games. In addition, mobile phone subscribers in some territories already have been able to watch live...

  20. A Conflict Avoidance Data Allocation Algorithm in a Multi-channel Broadcast Environment

    Directory of Open Access Journals (Sweden)

    Kai Liu

    2010-03-01

    Full Text Available On-demand broadcast is an effective data dissemination approach in mobile computing. Recently, a large number of applications have been developed in broadcast systems equipped with multiple channels. In this study, we investigate the data scheduling issues arising in multi-channel on-demand broadcast. The bandwidth utilization problem, which renders a poor performance of existing algorithms, is explored and examined. To tackle the observed problem, a novel scheduling algorithm is proposed, which aims at avoiding the conflict in data allocation and therewith, improving the bandwidth utilization. Results from our simulation study demonstrate the superiority of the proposed algorithm.

  1. Some Aspects of Testing Process for Transport Streams in Digital Video Broadcasting

    CERN Document Server

    Arsinte, Radu

    2008-01-01

    This paper presents some aspects related to the DVB (Digital Video Broadcasting) investigation. The basic aspects of DVB are presented, with an emphasis on DVB-T version of standard. The main purpose of this research is to analyze the way that the transmission of the transport streams is realized in case of the Terrestrial Digital Video Broadcasting (DVB-T). To accomplish this, first, Digital Video Broadcasting standard is presented, and then the main aspects of DVB testing and analysis of the transport streams are investigated. The paper presents also the results obtained using two programs designed for DVB analysis: Mosalina and TSA.

  2. Educational Television Broadcasting in Germany: Prevailing Practices, Existing Challenges and Adoptable Policies

    Directory of Open Access Journals (Sweden)

    Pradeep Kumar Misra

    2010-07-01

    Full Text Available Television is widely used for educational purposes but has still not achieved its fullest potential neither in developed nor in developing countries. This worldwide under performance invite experts and academics to join hands to search causes and provide suggestions to make television a better and popular learning tool. Guided by this philosophy, the present paper analyzes the educational television broadcasting in Germany from different perspectives. The focus of analysis includes measures and practices adopted by German institutions/broadcasters to promote educational television. Besides dealing with these issues, the paper discusses existing challenges and suggests best adoptable educational television broadcasting polices from Germany to promote educational television in global perspectives.

  3. Metadata elements preferred in searching and assessing relevance of archived television broadcast by scholars and students in media studies

    DEFF Research Database (Denmark)

    Kirkegaard, Brian

    The present doctoral work concerns the investigation of three aspects of scholars’ and students’ information seeking behaviour in a television broadcast context, and the associated implications for design and construction of metadata elements in surrogate records in future broadcast retrieval...... of television broadcasts at the State and University Library in Aarhus.  At present, no surrogate records exist for the collection, and hence no retrieval facilities are available for users.  To gather knowledge about the construction of surrogate records for a future broadcasts retrieval system, the...... present work focuses on three interconnected research areas: 1) aspects of users’ information seeking behaviour in relation to television broadcasts; 2) appropriate access points for television broadcasts; and 3) construction of surrogate records for television broadcasts.  Users’ information seeking...

  4. Broadcasting GPS integrity information using Loran-C

    Science.gov (United States)

    Lo, Sherman Chih

    The United States Federal Aviation Administration (FAA) will adopt the Global Positioning System (GPS) as its primary navigation systems for aviation as stated by the Federal Radionavigation Plans (FRP) of 1996 and 1999. The FRP also proposes the reduction or termination of some existing radionavigation system in favor of GPS and satellite navigation. It may be beneficial to retain some of these existing terrestrial navigation systems if they can provide increased safety and redundancy to the GPS based architecture. One manner in which this can be done is by using or creating a data link on these existing radionavigation systems. These systems thus can provide both navigation and an additional broadcast of GPS integrity information. This thesis examines the use of terrestrial data links to provide Wide Area Augmentation System (WAAS) based GPS integrity information for aviation. The thesis focuses on using Loran-C to broadcast WAAS data. Analysis and experimental results demonstrating the capabilities of these designs are also discussed. Using Loran for this purpose requires increasing its data capacity. Many Loran modulation schemes are developed and analyzed. The data rates developed significantly increased the Loran data capacity. However, retaining compatibility with Loran legacy users resulted in data rates below the WARS data rate of 250 bps. As a result, this thesis also examines means of reducing the data requirements for WAAS information. While higher data rates offer improved performance and compatibility with WAAS, this thesis demonstrates that higher rates incur greater interference. Therefore, this work develops and considers a 108 bps and 167 bps Loran GPS integrity channel (LOGIC) design. The performance of the two designs illustrates some of the advantages and disadvantages of using a higher data rate. Analysis demonstrated means of maintaining integrity with these low data rate systems and determined the theoretical capabilities of the systems. The

  5. Broadcast Service Areas, Other, Published in 2006, 1:1200 (1in=100ft) scale, Farmer.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, Other dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Field Observation information as of 2006. Data...

  6. Broadcast Service Areas, Cable, Published in 2006, 1:1200 (1in=100ft) scale, Farmer.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, Cable dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Field Observation information as of 2006. Data...

  7. Servicing a globally broadcast interrupt signal in a multi-threaded computer

    Science.gov (United States)

    Attinella, John E.; Davis, Kristan D.; Musselman, Roy G.; Satterfield, David L.

    2015-12-29

    Methods, apparatuses, and computer program products for servicing a globally broadcast interrupt signal in a multi-threaded computer comprising a plurality of processor threads. Embodiments include an interrupt controller indicating in a plurality of local interrupt status locations that a globally broadcast interrupt signal has been received by the interrupt controller. Embodiments also include a thread determining that a local interrupt status location corresponding to the thread indicates that the globally broadcast interrupt signal has been received by the interrupt controller. Embodiments also include the thread processing one or more entries in a global interrupt status bit queue based on whether global interrupt status bits associated with the globally broadcast interrupt signal are locked. Each entry in the global interrupt status bit queue corresponds to a queued global interrupt.

  8. Broadcast Scheduling Strategy Based on the Priority of Real.Time Data in a Mobile Environment

    Institute of Scientific and Technical Information of China (English)

    YangJin-cait; LiuYun-sheng

    2003-01-01

    Data broadcast is an important data dissemination approach in mobile environment. On broadcast channel,scalability and efficiency of data transmission are satisfied. In a mobile environment, there exists a kind of real-time database application in which both the transactions and data can have their timing constraints and priorities of different levels.In order to meet the requirement of real-time data disseminaring and retrieving, a broadcast scheduling strategy HPF-ED F (Highest Priority First with Earlier Deadline and Frequency) is proposed under the BoD (Broadcast on Demand) model. Using the strategy, data items are scheduled according to their priority the transaction imposed on them or system set for them. The strategy also considers other characteristics of data items such as deadline and popularity of data. The extensive simulation experiments have been conducted to evaluate the performance of the proposed algorithm. Results show that it can achieve excellent performance compared with existing strategies.

  9. Design and Implementation of Scalable VANETbased Navigation System Using Probability-based Broadcasting

    Directory of Open Access Journals (Sweden)

    Ms. Nikita Tiwari

    2015-06-01

    Full Text Available Global Positioning System (GPS is widely used for finding the shortest path from source to destination based on a local map database, as real-time road situations are not taken into consideration in GPS. Vehicular ad-hoc network (VANET based navigation system automatically searches for the route that yields minimum traveling delay. The system uses collected data to provide navigation service to drivers. In order to maintain the security and privacy, a Trusted Authority (TA is able to obtain user’s real identity. However, the centralized approach for route searching is not scalable for large cities. Probability based broadcasting approach eliminates privacy issues and provides scalability. Thus, propose broadcasting approach provides two ways to determine a retransmit probability: 1 fixed (V2I and 2 one-hop distance (V2V. Broadcasting approach also eliminates broadcast storm problem with reasonable delay and high delivery rate.

  10. Unequal Error Protected JPEG 2000 Broadcast Scheme with Progressive Fountain Codes

    CERN Document Server

    Chen, Zhao; Yin, Luiguo; Lu, Jianhua

    2012-01-01

    This paper proposes a novel scheme, based on progressive fountain codes, for broadcasting JPEG 2000 multimedia. In such a broadcast scheme, progressive resolution levels of images/video have been unequally protected when transmitted using the proposed progressive fountain codes. With progressive fountain codes applied in the broadcast scheme, the resolutions of images (JPEG 2000) or videos (MJPEG 2000) received by different users can be automatically adaptive to their channel qualities, i.e. the users with good channel qualities are possible to receive the high resolution images/vedio while the users with bad channel qualities may receive low resolution images/vedio. Finally, the performance of the proposed scheme is evaluated with the MJPEG 2000 broadcast prototype.

  11. Vehicle density based forwarding protocol for safety message broadcast in VANET.

    Science.gov (United States)

    Huang, Jiawei; Huang, Yi; Wang, Jianxin

    2014-01-01

    In vehicular ad hoc networks (VANETs), the medium access control (MAC) protocol is of great importance to provide time-critical safety applications. Contemporary multihop broadcast protocols in VANETs usually choose the farthest node in broadcast range as the forwarder to reduce the number of forwarding hops. However, in this paper, we demonstrate that the farthest forwarder may experience large contention delay in case of high vehicle density. We propose an IEEE 802.11-based multihop broadcast protocol VDF to address the issue of emergency message dissemination. To achieve the tradeoff between contention delay and forwarding hops, VDF adaptably chooses the forwarder according to the vehicle density. Simulation results show that, due to its ability to decrease the transmission collisions, the proposed protocol can provide significantly lower broadcast delay. PMID:25121125

  12. Design and Development of Scalable Navigation System using Probability-based Broadcasting in VANET

    Directory of Open Access Journals (Sweden)

    Ms. Nikita Tiwari

    2015-03-01

    Full Text Available Global Positioning System (GPS is widely used for finding the shortest path from source to destination based on a local map database, as real-time road situations are not taken into consideration in GPS. Vehicular ad-hoc network (VANET based navigation system automatically searches for the route that yields minimum traveling delay. The system uses collected data to provide navigation service to drivers. In order to maintain the security and privacy, a Trusted Authority (TA is able to obtain user’s real identity. However, the centralized approach for route searching is not scalable for large cities. Probability based broadcasting approach eliminates privacy issues and provides scalability. Thus, propose broadcasting approach provides two ways to determine a retransmit probability: 1 fixed (V2I and 2 one-hop distance (V2V. Broadcasting approach also eliminates broadcast storm problem with reasonable delay and high delivery rate.

  13. Broadcast Service Areas, TV, Published in 2006, 1:1200 (1in=100ft) scale, Farmer.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, TV dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Field Survey/GPS information as of 2006. Data by...

  14. The use of international television formats by public-service broadcasters in Australia, Denmark and Germany

    DEFF Research Database (Denmark)

    Esser, Andrea; Jensen, Pia Majbritt

    2015-01-01

    Today, the use of internationally licensed television formats, developed in one market and sold for local adaptation, is a widespread practice amongst commercial broadcasters around the world. But how has this trend impacted on public service broadcasting? Public service stipulations include the...... broadcasters? Responding to criticisms of the international, commodified character of formats in general and their staple, reality TV and lifestyle entertainment more specifically, this article provides a quantitative and qualitative analysis of the use of international formats by Australian, Danish and German...... public service broadcasters. The article hopes to contribute to media policy debate and concludes by arguing that, even in the relatively few instances where formats have been employed, the benefits outweigh the concerns raised....

  15. Broadcast Service Areas, Cable, Published in 1990, Smaller than 1:100000 scale, Pitt County GIS.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Broadcast Service Areas, Cable dataset, published at Smaller than 1:100000 scale, was produced all or in part from Published Reports/Deeds information as of...

  16. Architecture of WiFi Based Broadcast Network for Rural Community

    OpenAIRE

    Jumshed Akhtar; Noor Muhammad Sheikh; Syed Aun Abbas

    2016-01-01

    Digital divide is a reality in developing nations. Most of the technological advancements are available only in urban areas and rural community is still deprived of communication technology even in 21 st century. To ensure the availability of Internet, TV (Television) and other high data-rate services to the rural community; use of high power ISM (Industrial, Scientific and Medical) band broadcast should be of interest. The aim of this research work is to design a WiFi based broadcast network...

  17. Turkish radio broadcasts in The Netherlands: Community Communication or Ethnic Market?

    OpenAIRE

    CANKAYA, Özden

    2008-01-01

    With its multi-channel structure, including independent member-based and non-member-based organizations, the Dutch public broadcasting system is arguably a unique example in Europe for preserving diversity in its media landscape. In the Dutch framework there is a particular attention to minority groups in society, offering several models of participation on different scales. This article, part of a wider research project, examines Turkish radio broadcasts in The Netherlands assessing whether ...

  18. Co-opetition of TV broadcasters in online video markets: a winning strategy?

    OpenAIRE

    Evens, Tom

    2014-01-01

    This article focuses on TV broadcasters adopting co-opetition strategies for launching online video services. It is claimed that the emergence of online video platforms like YouTube and Netflix is driving TV broadcasters to collaborate with their closest competitors to reduce costs and reach the necessary scale in the global marketplace. The article sheds light on online video platforms that were developed following a co-opetition strategy (Hulu and YouView). The establishment of joint ventu...

  19. Posthumous Numerical Study of DTV Broadcast Antenna Integration with Prototype Stratospheric Airship Gondola

    OpenAIRE

    Ryu Miura; Mikio Suzuki; Mamoru Nagatsuka; Derek Gray

    2008-01-01

    Abstract As a follow-on to the 2002 digital television (DTV) broadcast demonstration from a solar-powered stratospheric flying wing, a prototype stratospheric airship was used for a more realistic DTV broadcast demonstration in 2004, albeit at a lower altitude. The DTV signal was occasionally lost at the receiver directly below the airship during the demonstration. Adverse antenna-vehicle integration effects were investigated using a commercially available antenna simulation software, because...

  20. The short future of public broadcasting: Replacing digital terrestrial television with internet protocol?

    OpenAIRE

    Ala-Fossi, M; Lax, S.

    2016-01-01

    According to recent European estimates, the life expectancy of broadcasting as a free-to-air television platform is not more than 15 years. BBC, Yle and the UK regulator Ofcom have reached this conclusion in their reports about the future of news, media distribution and digital terrestrial television (DTT). Although broadcasting is seen as necessary until 2030, all three assume that DTT can – under certain conditions – be replaced with delivery using internet protocol (IP). However, it seems ...

  1. THE EFFECTS OF SINGLE-GENDER GROUPS ON BROADCAST VIDEO PRODUCTION STUDENTS

    OpenAIRE

    Harden, Sam; LAMBETH, Dawn

    2013-01-01

    The purpose of this study was to determine the effects of single-gender grouping on Broadcast Video Production (BVP) students. Students in two first year broadcasting classes created a 45-sec Public Service Announcement (PSA) on bullying. One class consisted of the treatment of single-gender groups (N=24) while the other consisted of mixed-gender groups (N=21). Data was collected over 6-weeks and compared. Behavioral Checklists were used to determine which groups or gender remained focused on...

  2. Using a new medium for propaganda: the role of transborder broadcasts during the Spanish Civil War

    OpenAIRE

    Ribeiro, Nelson

    2014-01-01

    This article presents an analysis of the role of transborder broadcasts during the Spanish Civil War. As a new medium at that time, radio had a strong impact not only on increasing the morale of the Franquist forces, but also on influencing military operations through the dissemination of strategic information concerning the progress of military operations. Mostly focusing on the role of Portuguese broadcasters, which clearly took the lead in supporting Franco during the first year of his rev...

  3. Robust Radio Broadcast Monitoring Using a Multi-Band Spectral Entropy Signature

    Science.gov (United States)

    Camarena-Ibarrola, Antonio; Chávez, Edgar; Tellez, Eric Sadit

    Monitoring media broadcast content has deserved a lot of attention lately from both academy and industry due to the technical challenge involved and its economic importance (e.g. in advertising). The problem pose a unique challenge from the pattern recognition point of view because a very high recognition rate is needed under non ideal conditions. The problem consist in comparing a small audio sequence (the commercial ad) with a large audio stream (the broadcast) searching for matches.

  4. The Public Service Broadcaster of Lithuania in the Era of Commercialization

    OpenAIRE

    Tichonovaite, Monika

    2011-01-01

    The television industry in Lithuania is analyzed in this thesis with a focus on the impact of commercialization on the public service broadcaster. The purpose of the research paper is to describe the impact of the changing market on the public service broadcaster of Lithuania using as theoretical framework the approach of the political economy of the media and communication and quantitative methods. One part of the thesis is the theoretical research, which is done by analyzing and systematica...

  5. Did you get my message? Transferring public relations messages to broadcast media discourse

    OpenAIRE

    Christie M. Kleinmann

    2008-01-01

    How well do public relations practitioners place their dominant frames in media discourse?This research is an exploratory examination of this issue through a comparison of public relations and broadcast frames during a televised sport event. The research confirms that practitioners do influence media discourse; however, their influence is qualified predominately by receiver needs. This analysis found that dominant public relations frames do not automatically transfer to broadcast frames, and ...

  6. Technological characteristics of digital video broadcasting: Handheld standard DVB-H

    OpenAIRE

    Andreja B. Samčović

    2011-01-01

    This paper gives an overview of the Digital Video Broadcasting - Handheld standard DVB-H, as a part of the DVB Project. This standard is based on the previous standard DVB-T, which was developed for the terrestrial digital television. The ways of DVB-H signal transmission are also described. Development of advanced technology enabled the digital video broadcasting over wireless portable terminals. This paper discusses the key technological features of the DVB-H standard, such as: time slicing...

  7. On the Timeliness of Multi-Hop Non-Beaconed ZigBee Broadcast Communications

    OpenAIRE

    P. Bartolomeu; Fonseca, J.; vasques, f

    2008-01-01

    This paper studies the adoption of the ZigBee technology to replace broadcast-based wired communications in automation systems for Health Smart Homes. An analytical study is presented as well as the experimental results validating the derived expressions. Results show that the timeliness of ZigBee broadcast communications, in interference-free environments, can cope with the requirements of home automation applications and those found in building automation.

  8. Performance Evaluation and Parameter Optimization of SoftCast Wireless Video Broadcast

    OpenAIRE

    Dongxue Yang; Yunqiang Bi; Zhongwei Si; Zhiqiang He; Kai Niu

    2015-01-01

    Wireless video broadcast plays an imp ortant role in multimedia communication with the emergence of mobile video applications. However, conventional video broadcast designs suffer from a cliff effect due to separated source and channel encoding. The newly prop osed SoftCast scheme employs a cross-layer design, whose reconstructed video quality is prop ortional to the channel condition. In this pap er, we provide the p erformance evaluation and the parameter optimization of the SoftCast system...

  9. EBAA: An efficient broadcast authentication scheme for ADS-B communication based on IBS-MR

    Directory of Open Access Journals (Sweden)

    Yang Haomiao

    2014-06-01

    Full Text Available Automatic dependent surveillance-broadcast (ADS-B systems can broadcast satellite-based aircraft position, identification, etc., periodically, and are now on track to replace radar to become the backbone of next-generation air traffic management (ATM systems. However, ADS-B systems suffer severe cyber-security problems due to the broadcast-type data link and the lack of designed-in security measures. Especially, since ADS-B messages are unauthenticated, it is easy to insert fake aircraft into a system via spoofing or insertion of false messages. Unfortunately, the authentication for ADS-B messages has not yet been well studied. In this paper, based on identity-based signature with message recovery (IBS-MR, an efficient broadcast authentication scheme for ADS-B messages is proposed. The security analysis demonstrates that the scheme can achieve authenticity and integrity of ADS-B broadcast messages, as well as adaptive evolution of broadcasters’ private keys. The performance evaluation shows that the scheme is computationally efficient for typical avionics devices with limited resources. Furthermore, the scheme achieves low communication overhead since broadcast messages can be recovered from signatures, and thus it is suitable for low-bandwidth ADS-B data link.

  10. A high linearity downconverter for digital broadcasting system

    International Nuclear Information System (INIS)

    An integrated downconverter with high linearity for digital broadcasting system receivers is implemented in a 0.13 μm CMOS process with an active area of 0.1 mm2. The current-mode scheme is adopted to improve linearity performance by avoiding voltage fluctuation. A passive CMOS switching pair is utilized to improve the even-order linearity of the downconverter. A current amplifier is used to provide low input impedance which will easily lead to a wide operating bandwidth and high linearity. Moreover, a current-mode Sallen-Key low-pass filter is adopted for effective rejection of out-of-band interferers and also low input impedance. The digital-assisted DC offset calibration improves the second-order distortion of the downconverter. This design achieves a maximum gain of 40 dB and a dynamic range of 10 dB. Measured noise figure is 8.2 dB, an IIP2 of 63 dBm, an IIP3 of 17 dBm at the minimum gain of 30 dB. The downconverter consumes about 7.7 mA under a supply of 1.2 V. (semiconductor integrated circuits)

  11. The broadcasting mechanism of master regulator NFκB switches

    Science.gov (United States)

    Potoyan, Davit

    The transcription factor NFκB is involved in many cellular responses. Therefore there is a large number of sites in the genome to which NFκB binds thereby activating myriad of genes as a response to various environmental stimuli. Kinetics becomes an important feature to reckon with in eukaryotic regulatory networks with many targets like the NFκB system. In particular models based on the classical picture of genetic switches predict slow down regulation of NFκB which can lead to wasteful over-exression of genes. A way to resolve this difficulty is to evolve faster ways of deactivating NFκB . There is evidence from experiments and our simulations that this is done by an IκB induced process of stripping NFκB off directly from its genetic sites instead of waiting for autonomous dissociation. The broadcasting mechanism proposed in this work solves the time scale problem inherent in the classical picture. Using combination of stochastic and deterministic models we show how such a mechanism results in efficient regulation of NFκB network.

  12. [Evaluation of medication advertising broadcast on radio stations].

    Science.gov (United States)

    Batista, Almária Mariz; Carvalho, Maria Cleide Ribeiro Dantas de

    2013-02-01

    The scope of this paper was to evaluate advertising for medication broadcast on radio stations in Natal, State of Rio Grande do Norte, Brazil, from April to September 2008 and from April to September 2010. The advertising was recorded and transcribed in order to conduct legal analysis and content analysis based on the precepts of Laurence Bardin. Both the advertising recorded during the first stage (regulated by RDC 102/00) and the second stage (regulated by RDC 96/08) contained some form of legal violation. Content analysis detected practically the same violations in both stages, namely the lack of information regarding adverse effects of the medication, appeal to consumption, exaggeration of efficiency/effectiveness and abusive exploitation of illness. Despite the inclusion of more modern and restrictive legislation, radio advertising continues to violate the law blatantly, committing abuse and disrespecting the population's entitlement to good health. The study reveals the need for medication advertising to be dealt with in a broader context, in other words to be treated as a public health concern. It must take into consideration the socio-historical scenario in which it evolved, since the legislation alone is insufficient to combat abuse committed to the detriment of public health. PMID:23358781

  13. Scheduling to Minimize Energy and Flow Time in Broadcast Scheduling

    CERN Document Server

    Moseley, Benjamin

    2010-01-01

    In this paper we initiate the study of minimizing power consumption in the broadcast scheduling model. In this setting there is a wireless transmitter. Over time requests arrive at the transmitter for pages of information. Multiple requests may be for the same page. When a page is transmitted, all requests for that page receive the transmission simulteneously. The speed the transmitter sends data at can be dynamically scaled to conserve energy. We consider the problem of minimizing flow time plus energy, the most popular scheduling metric considered in the standard scheduling model when the scheduler is energy aware. We will assume that the power consumed is modeled by an arbitrary convex function. For this problem there is a $\\Omega(n)$ lower bound. Due to the lower bound, we consider the resource augmentation model of Gupta \\etal \\cite{GuptaKP10}. Using resource augmentation, we give a scalable algorithm. Our result also gives a scalable non-clairvoyant algorithm for minimizing weighted flow time plus energ...

  14. MHP Oriented Interactive Augmented Reality System for Sports Broadcasting Environments

    Directory of Open Access Journals (Sweden)

    Tobias D. Kammann

    2007-06-01

    Full Text Available Television and movie images have been altered ever since it was technically possible. Nowadays embedding advertisements, or incorporating text and graphics in TV scenes, are common practice, but they can not be considered as integrated part of the scene. The introduction of new services for interactive augmented television is discussed in this paper. We analyse the main aspects related with the whole chain of augmented reality production.Interactivity is one of the most important added values of the digital television: This paper aims to break the model where all TV viewers receive the same final image. Thus, we introduce and discuss the new concept of interactive augmented television, i. e. real time composition of video and computer graphics - e.g. a real scene and freely selectable images or spatial rendered objects - edited and customized by the end user within the context of the user's set top box and TV receiver.We demonstrate a sample application introducing "Interactive Augmented Television" for sport broadcasts additionally with 3D virtual objects in order to enhance or alter the presentation of the match with a new interface. We also introduce a pure virtual world where the user can select the camera position.

  15. Music and its Impact on Musicians in Broadcasting Company

    Directory of Open Access Journals (Sweden)

    Mina Milani

    1999-03-01

    Full Text Available Sound is an inseparable part of human life and provides us with lovely experiences such as listening to music. Musicians from classical orchestras to rock groups are exposed to high decibel of sounds. Musicians playing percussion musical instruments are exposed to high level of impact noise and players of Brass musical instruments are highly exposed to noise peaks higher than 100dB. Woodwind players are enduring the risk of posing directly in front of Brass players. Based on the above-mentioned risks for hearing loss clinical consideration of noise induced hearing loss in musicians is highly required. In the current study we were aimed at examining hearing stratus of classic and traditional musicians by means of pure tone audiometry in Islamic Republic of Iran Broadcasting. 33 subjects were evaluated aged between 22 to 59 years old. Their musical experience was variable between 6 to 45 years. The study demonstrated that most of the musicians in this study suffered bilateral high frequency hearing loss with a notch in the frequency range of 4-8 KHz.

  16. Court Reconstruction for Camera Calibration in Broadcast Basketball Videos.

    Science.gov (United States)

    Wen, Pei-Chih; Cheng, Wei-Chih; Wang, Yu-Shuen; Chu, Hung-Kuo; Tang, Nick C; Liao, Hong-Yuan Mark

    2016-05-01

    We introduce a technique of calibrating camera motions in basketball videos. Our method particularly transforms player positions to standard basketball court coordinates and enables applications such as tactical analysis and semantic basketball video retrieval. To achieve a robust calibration, we reconstruct the panoramic basketball court from a video, followed by warping the panoramic court to a standard one. As opposed to previous approaches, which individually detect the court lines and corners of each video frame, our technique considers all video frames simultaneously to achieve calibration; hence, it is robust to illumination changes and player occlusions. To demonstrate the feasibility of our technique, we present a stroke-based system that allows users to retrieve basketball videos. Our system tracks player trajectories from broadcast basketball videos. It then rectifies the trajectories to a standard basketball court by using our camera calibration method. Consequently, users can apply stroke queries to indicate how the players move in gameplay during retrieval. The main advantage of this interface is an explicit query of basketball videos so that unwanted outcomes can be prevented. We show the results in Figs. 1, 7, 9, 10 and our accompanying video to exhibit the feasibility of our technique. PMID:27504515

  17. Modeling and Performance Analyses of Hybrid Cellular and Broadcasting Networks

    Directory of Open Access Journals (Sweden)

    Peter Unger

    2009-01-01

    Full Text Available Mobile communication services are getting more and more important and, in particular, multimedia services have attracted the interest of the users. Mobile TV is one of the most demanded candidates. Powerful and efficient communication systems are needed, which provide high capacities, especially at the downlink. Furthermore, interactivity is essential for supporting the user needs and to extend the service offering. As one possible solution to meet the mentioned requirements, we consider the combination of the cellular network UMTS and the mobile broadcast network DVB-H, which form a hybrid network. We investigate the performance of hybrid networks and develop a system model, which describes the hybrid network and the load switching between both networks. One of the contributions is the definition of the switching bound concept, which represents an efficient tool to assess the necessity and the feasibility of hybrid networks and the amount of load switching. The performance indicators cell load and grade of service are analyzed by using theoretical and realistic scenarios.

  18. Stealth Advertising: The Commercialization of Television News Broadcasts in Canada

    Directory of Open Access Journals (Sweden)

    Gennadiy Chernov

    2010-01-01

    Full Text Available This two-phase study deals with the phenomenon of “stealth advertising” in Canada. This concept refers to the encroachment of commercially tinted messages into broadcast news segments. Different theories of commercial speech were used as a theoretical framework. The study combined mixed methods, content analysis and in-depth interviews. The first phase concentrated on the frequency and actual time spent airing commercially influenced messages in television newscast segments. The sample consisted of eight randomly selected English-language markets across Canada including news stations affiliated with CBC, CTV and Global. Seventy-five newscasts were recorded and content-analyzed. The analysis demonstrated that private television stations used more explicit and aggressive stealth advertising than publicly owned ones. In subsequent interviews, the news directors and sales managers of some of these stations denied that they yield to outside commercial pressures but admitted they may include messages with commercial content if these have public interest value. In the second phase thirty-nine newscasts of a news station affiliated with Global were recorded and content-analyzed, showing high numbers of commercially influenced messages and corroborating previous research findings. Subsequent interviews showed some news decision-makers accept the inclusion of commercially tinted news segments, thus eroding the divide between editorial and commercial contents. This study is intended to contribute to the empirical basis for pursuing the question of corruption of news by surreptitious commercial content.

  19. MODUS OPERANDI OF SLOVENIAN RADIO BROADCASTERS IN TRANSMISSION OF THEIR PROGRAMME CONTENTS IN THE PERIOD FROM 2004 TO 2014

    Directory of Open Access Journals (Sweden)

    Robi Brglez

    2016-01-01

    Full Text Available Accelerated trends of digitalisation and media convergence contribute to an increasingly important role of radio in modern society. In the last decade, we have seen in the field of radio broadcasting in the Republic of Slovenia an overwhelming expansion of radio broadcasters who acquired the radio broadcasting licences. The topic of this paper are issued radio broadcasting licences and granted statuses of station of special importance within radio broadcasting activity. Based on our own research of secondary data obtained from the documentation of co-regulators in the field of broadcasting for the period from 2004 to 2014, we attempted to identify the modus operandi of radio broadcasters in their everyday practice after acquiring the licences and statuses. Findings of our research indicate that the radio broadcasters over the period considered have often changed programme-related requirements and limitations resulting from their licences and the Mass Media Act, while broadcasting and distributing programming contents. In comparison with the modification of licences, they did not transfer the broadcasting right to another legal entity so frequently. It has been also established that the regulator in ten cases temporarily had revoked the broadcasting licences or decided to withdraw the statuses, because the irregularities were detected during expert supervision. The authors set out proposals for the improvement of the situation in the subject field, based on the obtained results. They consider that it could be a challenge for all broadcasting stakeholders, who however have to tackle the elimination of the multi-annual delay of the harmonisation of the broadcasting sector with the standards of European Union. According to the results of the present study, the stakeholders cannot be satisfied with the situation in Slovenian media landscape and with its development nowadays.

  20. Digital Audio Radio Broadcast Systems Laboratory Testing Nearly Complete

    Science.gov (United States)

    2005-01-01

    Radio history continues to be made at the NASA Lewis Research Center with the completion of phase one of the digital audio radio (DAR) testing conducted by the Consumer Electronics Group of the Electronic Industries Association. This satellite, satellite/terrestrial, and terrestrial digital technology will open up new audio broadcasting opportunities both domestically and worldwide. It will significantly improve the current quality of amplitude-modulated/frequency-modulated (AM/FM) radio with a new digitally modulated radio signal and will introduce true compact-disc-quality (CD-quality) sound for the first time. Lewis is hosting the laboratory testing of seven proposed digital audio radio systems and modes. Two of the proposed systems operate in two modes each, making a total of nine systems being tested. The nine systems are divided into the following types of transmission: in-band on-channel (IBOC), in-band adjacent-channel (IBAC), and new bands. The laboratory testing was conducted by the Consumer Electronics Group of the Electronic Industries Association. Subjective assessments of the audio recordings for each of the nine systems was conducted by the Communications Research Center in Ottawa, Canada, under contract to the Electronic Industries Association. The Communications Research Center has the only CCIR-qualified (Consultative Committee for International Radio) audio testing facility in North America. The main goals of the U.S. testing process are to (1) provide technical data to the Federal Communication Commission (FCC) so that it can establish a standard for digital audio receivers and transmitters and (2) provide the receiver and transmitter industries with the proper standards upon which to build their equipment. In addition, the data will be forwarded to the International Telecommunications Union to help in the establishment of international standards for digital audio receivers and transmitters, thus allowing U.S. manufacturers to compete in the

  1. A Study on Digital Video Broadcasting to a Handheld Device (DVB-H), Operating in UHF Band

    CERN Document Server

    Masood, Farhat

    2011-01-01

    In this paper, we will understand that the development of the Digital Video Broadcasting to a Handheld (DVB-H) standard makes it possible to deliver live broadcast television to a mobile handheld device. Building upon the strengths of the Digital Video Broadcasting - Terrestrial (DVB-T) standard in use in millions of homes, DVB-H recognizes the trend towards the personal consumption of media.

  2. Security and Hyper-accurate Positioning Monitoring with Automatic Dependent Surveillance-Broadcast (ADS-B) Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Lightning Ridge Technologies, working in collaboration with The Innovation Laboratory, Inc., extend Automatic Dependent Surveillance Broadcast (ADS-B) into a safe,...

  3. Security and Hyper-accurate Positioning Monitoring with Automatic Dependent Surveillance-Broadcast (ADS-B) Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Lightning Ridge Technologies, LLC, working in collaboration with The Innovation Laboratory, Inc., extend Automatic Dependent Surveillance ? Broadcast (ADS-B) into a...

  4. Kajian implementasi radio siaran digital di Indonesia [Study of digital radio broadcasting implementation in Indonesia

    Directory of Open Access Journals (Sweden)

    Amry Daulat Gultom

    2015-12-01

    Full Text Available Peraturan Menteri Komunikasi dan Informatika RI nomor 21 tahun 2009 tentang  Standar Penyiaran Digital Untuk Penyiaran Radio pada Pita VHF di Indonesia menyatakan bahwa dalam rangka mengatasi permasalahan penggunaan frekuensi VHF Band II untuk penyiaran radio FM yang tidak sesuai dengan rencana induk, serta tidak terpenuhinya permohonan untuk penggunaan kanal frekuensi dari masyarakat, maka perlu dicarikan saluran siaran alternatif dengan menggunakan sistem penyiaran radio digital standard DAB Family. Hingga saat ini belum ada perkembangan berarti terkait implementasinya, sehingga perlu dilakukan penelitian untuk mengetahui potensi radio siaran digital, kesiapan dari sisi pemerintah, operator, dan masyarakat, dan kendala yang dihadapi serta merumuskan strategi yang akan digunakan mengatasinya. Metode analisis yang digunakan adalah SWOT dan TOWS kualitatif dari data wawancara dan studi literatur. Hasil penelitian menunjukkan bahwa pihak stasiun radio sudah siap terhadap digitalisasi radio siaran, pihak pemerintah belum begitu siap karena belum adanya regulasi pendukung Permen Kominfo tentang standard radio digital, dan masyarakat juga belum siap karena kurangnya sosialisasi dan masih susah didapatkannya perangkat penerima siaran radio digital. Pengintegrasian penerima siaran radio digital pada kendaraan bermotor roda empat dan telepon genggam yang baru dapat meningkatkan keberadaan perangkat penerima siaran radio digital.*****The Minister of Communication and Information Regulation number 21 of 2009 on Digital Broadcasting Standards for VHF Band Radio Broadcasting in Indonesia stated that in order to overcome the problems of VHF Band II frequency utilization for FM radio broadcasting that is not in accordance with the master plan, as well as non-fulfillment of the request for frequency channels utilization of the society, neeed to find alternative broadcast channel by DAB Family digital radio broadcasting system. Until now there has no

  5. Cell broadcast trials in The Netherlands: Using mobile phone technology for citizens' alarming

    International Nuclear Information System (INIS)

    In emergency situations authorities need to warn the public. The conventionally used method for warning citizens in The Netherlands is the use of a siren. Modern telecommunication technologies, especially the use of text-based features of mobile phones, have great potential for warning the public. In the years 2005-2007 cell broadcast was tested during several large-scale field trials with citizens in The Netherlands. One of the questions was to determine the penetration of cell broadcast for citizens' alarming. This article argues that the definition of penetration in the light of warning citizens in case of emergencies should include the citizens' responses to warning messages. In addition, the approach to determining the penetration, the data and validity issues regarding these data is discussed. The trials have shown cell broadcast has potential to become an effective citizens' alarming technology. This however requires the entire technological and organisational chain of the warning system to function correctly. Attention is required to network management, handset improvements and correct communication to the public about the conditions under which a cell broadcast message can be received. The latter includes managing realistic expectations including circumstances in which cell broadcast will not reach a citizen.

  6. Decomposition of bipartite states with applications to quantum no-broadcasting theorems

    International Nuclear Information System (INIS)

    Correlations in bipartite quantum states are fundamental objects in quantum information theory. A canonical framework for studying correlations is the entangled versus separable dichotomy in which the decompositions of separable states as convex combinations of product states play an instrumental role. In this paper, motivated by both the representation of separable states and quantum no-broadcasting considerations, we establish a constructive decomposition representation for any bipartite state. As applications, we prove the conjectures proposed by Luo [Lett. Math. Phys. 92, 143 (2010)] concerning no-unilocal broadcasting for quantum correlations and further provide a unified picture for the celebrated quantum no-broadcasting theorem for noncommuting states by Barnum et al. [Phys. Rev. Lett. 76, 2818 (1996)], and the elegant no-local-broadcasting theorem for quantum correlations by Piani et al. [Phys. Rev. Lett. 100, 090502 (2008)]. The results reveal some intrinsic relation between quantumness of correlations and noncommutativity of states, and in particular, provide a characterization for zero quantum discord introduced by Ollivier and Zurek [Phys. Rev. Lett. 88, 017901 (2001)] from the broadcasting perspective. Furthermore, it is indicated that the distinction between the decomposition for general bipartite states and that for separable states might be useful in studying entanglement versus separability.

  7. New Generation of Broadcasting Satellite Systems: New Markets and Business Developments

    Science.gov (United States)

    Perrot, Bruno; Michel, Cyril; Villaret, Stéfanie

    2002-01-01

    Since the deployment of the first Digital Broadcasting Satellite Systems, European satellite operators and service providers have been faced with the continuously increasing demand for Digital Broadcasting Services. Their success is built on the availability of the MPEG and DVB standards. Undoubtedly, conventional digital television broadcasting is today the `Killer' application. Various service providers already offer multimedia applications through DVB-S systems based upon the `Push' technology. Although these services do not currently represent the core business for broadcasting satellite operators, their percentage is increasing. `Push' technology services include Data Carousel, Webcasting, Turbo Internet, File casting and so on. Such technology can support the implementation of different emerging multimedia services scenarios from Newsgroups, Network collaborative learning, and tele-medicine, to others that may be invented in the near future. The penetration rate of multi-channel television reception is still increasing. Broadcasting satellites benefit both from the development of new, more segmented and sophisticated offers and from the development of Internet services. Satellite is likely to enter these new markets at different levels of the value chain: Even if the satellite has demonstrated its capacity to fully serve the television, combinations with other networks may be necessary to address the new markets: at the consumer premises, Internet-related services will require a return path; at the backbone level, satellite becomes a component of a full telecommunications solution. This article focuses on the European market and proposes:

  8. Broadcast Authentication for Wireless Sensor Networks Using Nested Hashing and the Chinese Remainder Theorem

    Directory of Open Access Journals (Sweden)

    Eun-Suk Cho

    2010-09-01

    Full Text Available Secure broadcasting is an essential feature for critical operations in wireless sensor network (WSNs. However, due to the limited resources of sensor networks, verifying the authenticity for broadcasted messages is a very difficult issue. μTESLA is a broadcast authentication protocol, which uses network-wide loose time synchronization with one-way hashed keys to provide the authenticity verification. However, it suffers from several flaws considering the delay tolerance, and the chain length restriction. In this paper, we propose a protocol which provides broadcast authentication for wireless sensor networks. This protocol uses a nested hash chain of two different hash functions and the Chinese Remainder Theorem (CRT. The two different nested hash functions are employed for the seed updating and the key generation. Each sensor node is challenged independently with a common broadcasting message using the CRT. Our algorithm provides forward and non-restricted key generation, and in addition, no time synchronization is required. Furthermore, receivers can instantly authenticate packets in real time. Moreover, the comprehensive analysis shows that this scheme is efficient and practical, and can achieve better performance than the μTESLA system.

  9. Composite Broadcasting and Ranging via a Satellite Dual-Frequency MPPSK System

    Directory of Open Access Journals (Sweden)

    Yu Yao

    2013-01-01

    Full Text Available Since digital video broadcasting via satellite (DVB-S signals are “inefficient”, regarding the amount of information they convey on the bandwidth they occupy, a joint broadcasting and ranging system would constitute a unique platform for future digital video broadcasting satellite services effecting the essential tasks of satellite navigation system and direct to home (DTH services, in terms of both spectrum efficiency and cost effectiveness. In this paper, the design of dual frequency M-ary position phase shift keying (MPPSK system which is suitable for, respectively, performing both data transmission and range measurement is proposed. The approach is based on MPPSK modulation waveforms utilized in digital video broadcasting. In particular, requirements that allow for employing such signals for range measurements with high accuracy and high range are investigated. Also, the relationship between the frequency difference of dual frequency MPPSK system and range accuracy is discussed. Moreover, the selection of MPPSK modulation parameter for data rate and ranging is considered. In addition to theoretical considerations, the paper presents system simulations and measurement results of new systems, demonstrating the high spectral utilization of integrated broadcasting and ranging applications.

  10. Probabilistic Broadcasting Protocol In AD HOC Network And Its Advancement: A Review

    Directory of Open Access Journals (Sweden)

    Tasneem Bano

    2010-12-01

    Full Text Available Broadcasting is a fundamental operation in MANETs where a source node transmits a message that is to be disseminated to all the nodes in the network. Broadcasting is categorized into deterministic and probabilistic schemes. This paper reviews the probabilistic broadcasting protocol because of its adaptability in changing environment. Probabilistic broadcasting is best suited in terms of ad hoc network which is well known for its decentralized network nature. Probability, counter and distance based scheme under probabilistic scheme are discussed in this paper. Besides the basic probability scheme this paper also includes their recent advancements. Rebroadcast is one of the initial task for route discovery inreactive protocols. This review paper identify which protocol gives better performance in terms of reachability, saved rebroadcast and average latency in rebroadcasting a route request message. Simulation results are presented, which shows reachability, saved rebroadcast and average latency of the probabilistic broadcast protocols and their enhancement schemes. The comparative study shows the improvement of enhanced scheme over probabilistic schemes.

  11. Line-plane broadcasting in a data communications network of a parallel computer

    Science.gov (United States)

    Archer, Charles J.; Berg, Jeremy E.; Blocksome, Michael A.; Smith, Brian E.

    2010-06-08

    Methods, apparatus, and products are disclosed for line-plane broadcasting in a data communications network of a parallel computer, the parallel computer comprising a plurality of compute nodes connected together through the network, the network optimized for point to point data communications and characterized by at least a first dimension, a second dimension, and a third dimension, that include: initiating, by a broadcasting compute node, a broadcast operation, including sending a message to all of the compute nodes along an axis of the first dimension for the network; sending, by each compute node along the axis of the first dimension, the message to all of the compute nodes along an axis of the second dimension for the network; and sending, by each compute node along the axis of the second dimension, the message to all of the compute nodes along an axis of the third dimension for the network.

  12. Formal Specification and Verification of Total Order Broadcast through Destination Agreement Using Event-B

    Directory of Open Access Journals (Sweden)

    Arun Kumar Singh

    2015-12-01

    Full Text Available A reliable broadcast is communication primitive used to develop fault tolerant distributed applications. It in due course delivers messages to all participating sites irrespective of their ordering. Total order broadcast impose restriction on message ordering and satisfies total order requirement. A clear specifications, rigorous validation and verification is key to obtain better design of dependable services in such applications. With the help of formal methods one can specify and verify systems in systematic rather than ad hoc manner. It reveals ambiguities, incompleteness, and inconsistencies in a system by facilitating clear specification, rigorous validation and verification. In this paper, we present a formal development of total order broadcast. The model have been developed and checked by using event-B techniques supported by the RODIN tool. Event-B is a formal technique that supports the incremental design of a distributed applications using notion of refinements.

  13. Line-plane broadcasting in a data communications network of a parallel computer

    Science.gov (United States)

    Archer, Charles J.; Berg, Jeremy E.; Blocksome, Michael A.; Smith, Brian E.

    2010-11-23

    Methods, apparatus, and products are disclosed for line-plane broadcasting in a data communications network of a parallel computer, the parallel computer comprising a plurality of compute nodes connected together through the network, the network optimized for point to point data communications and characterized by at least a first dimension, a second dimension, and a third dimension, that include: initiating, by a broadcasting compute node, a broadcast operation, including sending a message to all of the compute nodes along an axis of the first dimension for the network; sending, by each compute node along the axis of the first dimension, the message to all of the compute nodes along an axis of the second dimension for the network; and sending, by each compute node along the axis of the second dimension, the message to all of the compute nodes along an axis of the third dimension for the network.

  14. ESA personal communications and digital audio broadcasting systems based on non-geostationary satellites

    Science.gov (United States)

    Logalbo, P.; Benedicto, J.; Viola, R.

    1993-01-01

    Personal Communications and Digital Audio Broadcasting are two new services that the European Space Agency (ESA) is investigating for future European and Global Mobile Satellite systems. ESA is active in promoting these services in their various mission options including non-geostationary and geostationary satellite systems. A Medium Altitude Global Satellite System (MAGSS) for global personal communications at L and S-band, and a Multiregional Highly inclined Elliptical Orbit (M-HEO) system for multiregional digital audio broadcasting at L-band are described. Both systems are being investigated by ESA in the context of future programs, such as Archimedes, which are intended to demonstrate the new services and to develop the technology for future non-geostationary mobile communication and broadcasting satellites.

  15. Variable-Length Coding with Stop-Feedback for the Common-Message Broadcast Channel

    DEFF Research Database (Denmark)

    Trillingsgaard, Kasper Fløe; Yang, Wei; Durisi, Giuseppe;

    2016-01-01

    This paper investigates the maximum coding rate over a K-user discrete memoryless broadcast channel for the scenario where a common message is transmitted using variable-length stop-feedback codes. Specifically, upon decoding the common message, each decoder sends a stop signal to the encoder...... bounds reveal that---contrary to the point-to-point case---the second-order term in the asymptotic expansion of the maximum coding rate decays inversely proportional to the square root of the average blocklength. This holds for certain nontrivial common-message broadcast channels, such as the binary...... symmetric broadcast channel. Furthermore, we identify conditions under which our converse and achievability bounds are tight up to the second order. Through numerical evaluations, we illustrate that our second-order asymptotic expansion approximates accurately the maximum coding rate and that the speed of...

  16. Ambiguity Function Analysis and Processing for Passive Radar Based on CDR Digital Audio Broadcasting

    Directory of Open Access Journals (Sweden)

    Zhang Qiang

    2015-01-01

    Full Text Available China Digital Radio (CDR broadcasting is a new standard of digital audio broadcasting of FM frequency (87–108 MHz based on our research and development efforts. It is compatible with the frequency spectrum in analog FM radio and satisfies the requirements for smooth transition from analog to digital signal in FM broadcasting in China. This paper focuses on the signal characteristics and processing methods of radio-based passive radar. The signal characteristics and ambiguity function of a passive radar illumination source are analyzed. The adverse effects on the target detection of the side peaks owing to cyclic prefix, the Doppler ambiguity strips because of signal synchronization, and the range of side peaks resulting from the signal discontinuous spectrum are then studied. Finally, methods for suppressing these side peaks are proposed and their effectiveness is verified by simulations.

  17. Architecture of WiFi Based Broadcast Network for Rural Community

    Directory of Open Access Journals (Sweden)

    Jumshed Akhtar

    2016-04-01

    Full Text Available Digital divide is a reality in developing nations. Most of the technological advancements are available only in urban areas and rural community is still deprived of communication technology even in 21 st century. To ensure the availability of Internet, TV (Television and other high data-rate services to the rural community; use of high power ISM (Industrial, Scientific and Medical band broadcast should be of interest. The aim of this research work is to design a WiFi based broadcast network that provides broadband access to remote areas and to study the propagation characteristics of this network in a typical rural community in the plains of Pakistan. This paper uses extensive measurements in indoor and outdoor environments of village ?Lower Kot Ratta? to develop a WiFi broadband broadcast propagation model for rural areas of Pakistan. The proposed model is simple, flexible and more suitable for rural areas as compared to existing models

  18. AUTOMATIC SEGMENTATION OF BROADCAST AUDIO SIGNALS USING AUTO ASSOCIATIVE NEURAL NETWORKS

    Directory of Open Access Journals (Sweden)

    P. Dhanalakshmi

    2010-12-01

    Full Text Available In this paper, we describe automatic segmentation methods for audio broadcast data. Today, digital audio applications are part of our everyday lives. Since there are more and more digital audio databases in place these days, the importance of effective management for audio databases have become prominent. Broadcast audio data is recorded from the Television which comprises of various categories of audio signals. Efficient algorithms for segmenting the audio broadcast data into predefined categories are proposed. Audio features namely Linear prediction coefficients (LPC, Linear prediction cepstral coefficients, and Mel frequency cepstral coefficients (MFCC are extracted to characterize the audio data. Auto Associative Neural Networks are used to segment the audio data into predefined categories using the extracted features. Experimental results indicate that the proposed algorithms can produce satisfactory results.

  19. PCBA: A Priority-Based Competitive Broadcasting Algorithm in Mobile Ad Hoc Networks

    Institute of Scientific and Technical Information of China (English)

    ZHOU BoSheng(周伯生); WU JieYi(吴介一); FEI Xiang(费翔); ZHAO Jian(赵键)

    2003-01-01

    Broadcasting operations are of great importance in Mobile Ad Hoc Networks(MANETs) since they are frequently executed. A straightforward broadcasting by flooding willproduce serious redundancy, contention and collision, and furthermore it will result in the perfor-mance degradation of the networks. PCBA, a Priority-based Competitive Broadcasting Algorithm,is proposed in this paper to solve the above problem. In this algorithm, hosts with larger PriorityIndex (PI) have higher probability to rebroadcast relevant messages while some other hosts will beprevented from rebroadcasting according to the competing policy. PCBA is a distributed algorithmand will not increase communication overhead. Through the analyses and extensive simulations,the authors demonstrate that PCBA has advantages in availability and scalability. It can signif-icantly reduce the rebroadcast redundancy. In addition, PCBA can also be further used in otherapplications such as routing discovery schemes, enhancing the performance.

  20. Posthumous Numerical Study of DTV Broadcast Antenna Integration with Prototype Stratospheric Airship Gondola

    Directory of Open Access Journals (Sweden)

    Gray Derek

    2008-01-01

    Full Text Available Abstract As a follow-on to the 2002 digital television (DTV broadcast demonstration from a solar-powered stratospheric flying wing, a prototype stratospheric airship was used for a more realistic DTV broadcast demonstration in 2004, albeit at a lower altitude. The DTV signal was occasionally lost at the receiver directly below the airship during the demonstration. Adverse antenna-vehicle integration effects were investigated using a commercially available antenna simulation software, because the radiation pattern of the antenna on the airship could not be measured directly. The ground handling bars on the airship gondola were found to introduce deep and sharp nulls into the radiation pattern of the broadcast antenna. Some mitigation techniques that would have fitted within the constraints of the time are discussed. Changing to nonconductive ground handling bars and a multiturn helical antenna would have avoided the problem, according to the simulation results.

  1. Posthumous Numerical Study of DTV Broadcast Antenna Integration with Prototype Stratospheric Airship Gondola

    Directory of Open Access Journals (Sweden)

    Ryu Miura

    2008-09-01

    Full Text Available As a follow-on to the 2002 digital television (DTV broadcast demonstration from a solar-powered stratospheric flying wing, a prototype stratospheric airship was used for a more realistic DTV broadcast demonstration in 2004, albeit at a lower altitude. The DTV signal was occasionally lost at the receiver directly below the airship during the demonstration. Adverse antenna-vehicle integration effects were investigated using a commercially available antenna simulation software, because the radiation pattern of the antenna on the airship could not be measured directly. The ground handling bars on the airship gondola were found to introduce deep and sharp nulls into the radiation pattern of the broadcast antenna. Some mitigation techniques that would have fitted within the constraints of the time are discussed. Changing to nonconductive ground handling bars and a multiturn helical antenna would have avoided the problem, according to the simulation results.

  2. VANET Broadcast Protocol Based on Fuzzy Logic and Lightweight Retransmission Mechanism

    Science.gov (United States)

    Wu, Celimuge; Ohzahata, Satoshi; Kato, Toshihiko

    Vehicular ad hoc networks have been attracting the interest of both academic and industrial communities on account of their potential role in Intelligent Transportation Systems (ITS). However, due to vehicle movement and fading in wireless communications, providing a reliable and efficient multi-hop broadcast service in vehicular ad hoc networks is still an open research topic. In this paper, we propose FUZZBR (FUZZy BRoadcast), a fuzzy logic based multi-hop broadcast protocol for information dissemination in vehicular ad hoc networks. FUZZBR has low message overhead since it uses only a subset of neighbor nodes to relay data messages. In the relay node selection, FUZZBR jointly considers multiple metrics of inter-vehicle distance, node mobility and signal strength by employing the fuzzy logic. FUZZBR also uses a lightweight retransmission mechanism to retransmit a packet when a relay fails. We use computer simulations to evaluate the performance of FUZZBR.

  3. The Use of International Television Formats by Public-Service Broadcasters in Australia, Denmark and Germany

    DEFF Research Database (Denmark)

    Esser, Andrea; Jensen, Pia Majbritt

    In the twenty-first century, the use of television formats, developed in one market and sold internationally for local adaptation, has become a widespread practice amongst commercial television broadcasters around the world (Moran 2009, Oren and Shahaf 2012). Most formatted programming falls within...... the light entertainment category and is well suited to providing the consumption friendly environment that commercial broadcasters seek to offer their advertising clients (Brennan 2012). A notable number of formats, including Dancing With the Stars, The X Factor, I’m A Celebrity- Get Me Out of Here......! and Got Talent, have proven to draw exceptionally large audiences internationally. Most other formats, such as The Hotel Inspector, The Biggest Loser and many cookery shows, have smaller audiences but benefit the broadcaster in that they are comparatively cheap to produce whilst at the same time...

  4. Probability of detecting band-tailed pigeons during call-broadcast versus auditory surveys

    Science.gov (United States)

    Kirkpatrick, C.; Conway, C.J.; Hughes, K.M.; Devos, J.C., Jr.

    2007-01-01

    Estimates of population trend for the interior subspecies of band-tailed pigeon (Patagioenas fasciata fasciata) are not available because no standardized survey method exists for monitoring the interior subspecies. We evaluated 2 potential band-tailed pigeon survey methods (auditory and call-broadcast surveys) from 2002 to 2004 in 5 mountain ranges in southern Arizona, USA, and in mixed-conifer forest throughout the state. Both auditory and call-broadcast surveys produced low numbers of cooing pigeons detected per survey route (x?? ??? 0.67) and had relatively high temporal variance in average number of cooing pigeons detected during replicate surveys (CV ??? 161%). However, compared to auditory surveys, use of call-broadcast increased 1) the percentage of replicate surveys on which ???1 cooing pigeon was detected by an average of 16%, and 2) the number of cooing pigeons detected per survey route by an average of 29%, with this difference being greatest during the first 45 minutes of the morning survey period. Moreover, probability of detecting a cooing pigeon was 27% greater during call-broadcast (0.80) versus auditory (0.63) surveys. We found that cooing pigeons were most common in mixed-conifer forest in southern Arizona and density of male pigeons in mixed-conifer forest throughout the state averaged 0.004 (SE = 0.001) pigeons/ha. Our results are the first to show that call-broadcast increases the probability of detecting band-tailed pigeons (or any species of Columbidae) during surveys. Call-broadcast surveys may provide a useful method for monitoring populations of the interior subspecies of band-tailed pigeon in areas where other survey methods are inappropriate.

  5. The broadcast classical-quantum capacity region of a two-phase bidirectional relaying channel

    Science.gov (United States)

    Boche, Holger; Cai, Minglai; Deppe, Christian

    2015-10-01

    We studied a three-node quantum network that enables bidirectional communication between two nodes with a half-duplex relay node for transmitting classical messages. A decode-and-forward protocol is used to perform the communication in two phases. In the first phase, the messages of two nodes are transmitted to the relay node. The capacity of the first phase is well known by previous works. In the second phase, the relay node broadcasts a re-encoded composition to the two nodes. We determine the capacity region of the broadcast phase. To the best of our knowledge, this is the first paper analyzing quantum bidirectional relay networks.

  6. Broadcasting of three-qubit entanglement via local copying and entanglement swapping

    International Nuclear Information System (INIS)

    In this work, we investigate the problem of a secretly broadcasting of a three-qubit entangled state between two distant partners. The interesting feature of this problem is that starting from two-particle entangle states shared between two distant partners we find that the action of a local cloner on the qubits and the measurement on the machine state vector generates three-qubit entanglement between them. The broadcasting of entanglement is made secret by sending the measurement result secretly using cryptographic scheme based on orthogonal states. Further we show that this idea can be extended to generate three-particle entangled states between three distant partners

  7. Broadcasting a Common Message with Variable-Length Stop-Feedback codes

    DEFF Research Database (Denmark)

    Trillingsgaard, Kasper Fløe; Yang, Wei; Durisi, Giuseppe;

    2015-01-01

    We investigate the maximum coding rate achievable over a two-user broadcast channel for the scenario where a common message is transmitted using variable-length stop-feedback codes. Specifically, upon decoding the common message, each decoder sends a stop signal to the encoder, which transmits...... itself in the absence of a square-root penalty in the asymptotic expansion of the maximum coding rate for large blocklengths, a result also known as zero dispersion. In this paper, we show that this speed-up does not necessarily occur for the broadcast channel with common message. Specifically, there...

  8. Radio Vienna: Broadcasts by the Organization of Ukrainian Nationalists, 1938–1939

    OpenAIRE

    Shkandrij, Myroslav

    2015-01-01

    Surviving transcripts of radio broadcasts made by the OUN in 1938 and 1939 defend the Ukrainian right to an independent state and support the formation of Carpatho-Ukraine as the first step towards achieving this goal. At the same time they praise Germany for the new situation created in the wake of the Munich Agreement. The broadcasts were allowed by Germany as part of its strategy to destabilize Czechoslovakia and Poland. The strong anti-Jewish line taken by the OUN in the first months of b...

  9. An empirical study of implementation of EFQM method for broadcasting organization in Iran

    Directory of Open Access Journals (Sweden)

    Moluk Abbasi

    2013-03-01

    Full Text Available Performance measurement plays an important role on media organizations and there are literally many methods for measuring the performance of an organization. European Foundation Quality Management (EFQM is one of the most popular methods for measuring performance of organizations. In this paper, we perform an empirical survey to customize this method for broadcasting organization of Iran. The proposed model of this paper designs a questionnaire and distributes among 3000 employees of the Iranian broadcasting organization. We have analyzed and assigned some points to different criteria and realized that standard EFQM can be considered as a customized method for taking appropriate strategies in this organization.

  10. Comparison of Error Protection Methods for Audio-Video Broadcast over DVB-H

    OpenAIRE

    Malamal Vadakital Vinod Kumar; Jumisko-Pyykkö Satu; Hannuksela Miska M

    2007-01-01

    The paper discusses methods for robust audio-video broadcast over the digital video broadcasting-handheld (DVB-H) system. DVB-H includes a link-layer forward error correction (FEC) scheme known as multiprotocol encapsulation (MPE) FEC, which provides equal error protection (EEP) to the transmitted media streams. Several approaches for unequal error protection (UEP) have been proposed in the literature, and the applicability of some of them to DVB-H is analyzed in the paper. A link-layer UEP ...

  11. Technological characteristics of digital video broadcasting: Handheld standard DVB-H

    Directory of Open Access Journals (Sweden)

    Andreja B. Samčović

    2011-07-01

    Full Text Available This paper gives an overview of the Digital Video Broadcasting - Handheld standard DVB-H, as a part of the DVB Project. This standard is based on the previous standard DVB-T, which was developed for the terrestrial digital television. The ways of DVB-H signal transmission are also described. Development of advanced technology enabled the digital video broadcasting over wireless portable terminals. This paper discusses the key technological features of the DVB-H standard, such as: time slicing, forward error correction, 4K mode and in-depth interleavers.

  12. A novel channel estimation based on spread pilots for terrestrial digital video broadcasting

    CERN Document Server

    Pasquero, Oudomsack Pierre; Nasser, Youssef; Hélard, Jean-François

    2008-01-01

    In this paper, we propose a novel channel estimation technique based on spread pilots for digital video broadcasting. This technique consists in adding a linear preceding function before the OFDM modulation and dedicating one of the preceding sequence to transmit the pilot symbols for the channel estimation. The merits of this technique are its simplicity, its flexibility, and the gains in terms of spectral efficiency and useful bit rate obtained compared to the classical pilot based estimation schemes used in DVB standards. The performance evaluated over realistic channel models, shows the efficiency of this technique which turns out to be a promising channel estimation technique for the future terrestrial video broadcasting systems.

  13. Video Composer and Live Video Conductor: Future Professions for the Interactive Digital Broadcasting Industry

    Directory of Open Access Journals (Sweden)

    Stefan M. Grünvogel

    2007-07-01

    Full Text Available Innovations in hardware and network technologies lead to an exploding number of non-interrelated parallel media streams. Per se this does not mean any additional value for consumers. Broadcasting and advertisement industries have not yet found new formats to reach the individual user with their content.In this work we propose and describe a novel digital broadcasting framework, which allows for the live staging of (mass media events and improved consumer personalisation. In addition new professions for future TV production workflows which will emerge are described, namely the ′video composer′ and the ′live video conductor′.

  14. Radio broadcasting and the politics of mass culture in transwar Japan

    OpenAIRE

    Jung, Ji Hee

    2010-01-01

    My dissertation examines the role of radio broadcasting in constituting mass culture as an integral part of politics in Japan during the period from the mid-1920s to the 1950s, that is, during both the Asia-Pacific War and the U.S. occupation. Transwar Japanese radio broadcasting has been discussed primarily in narrow terms of state control and indoctrination during the Asia-Pacific War, and the liberation of the masses or lack of such in the postwar "democratization" initiated by the U.S. oc...

  15. Design of an Advertisement Scenario for Electric Vehicles Using Digital Multimedia Broadcasting

    Science.gov (United States)

    Lee, Junghoon; Kim, Hye-Jin; Shin, In-Hye; Cho, Jason; Lee, Sang Joon; Kwak, Ho-Young

    This paper designs an integrative advertisement system based on digital multimedia broadcasting for the electric vehicles, which need a lot of driving information for battery efficiency and charge planning. The advertiser interface interacts with the advertisement processing system to pay the fee and have the contents endorsed. The advertisement contents are registered, monitored, encoded, and finally delivered to vehicles according to the contract via the broadcasting center. Here, this paper defines a new frame format on the data service stream and is in the process of developing and verifying the encoder and decoder modules. Our system is expected to provide the fundamentals for the development of diverse electric vehicle services.

  16. High-Level Topology-Oblivious Optimization of MPI Broadcast Algorithms on Extreme-Scale Platforms

    KAUST Repository

    Hasanov, Khalid

    2014-01-01

    There has been a significant research in collective communication operations, in particular in MPI broadcast, on distributed memory platforms. Most of the research works are done to optimize the collective operations for particular architectures by taking into account either their topology or platform parameters. In this work we propose a very simple and at the same time general approach to optimize legacy MPI broadcast algorithms, which are widely used in MPICH and OpenMPI. Theoretical analysis and experimental results on IBM BlueGene/P and a cluster of Grid’5000 platform are presented.

  17. CHAOS: User-driven Development of a Metadata Scheme for Radio Broadcast Archives

    DEFF Research Database (Denmark)

    Lykke, Marianne; Bogers, Toine; Larsen, Birger; Lund, Haakon

    Danish LARM project aims to meet this challenge by making one million hours of radio programs available to humanities researchers through the digital platform CHAOS. CHAOS is being built in close cooperation with the researchers involved in LARM. In this paper, we present the user-driven development of......CHAOS (Cultural Heritage Archive Open System) is a digital platform for Danish radio broadcasts. Radio broadcasts are an important and vibrant part of our cultural heritage, but providing efficient and effective access to such archives is challenging for lack of a solid digital infrastructure. The...

  18. Broadcasting environmental knowledge: Open University & BBC collaborations serving massive global audiences

    Science.gov (United States)

    Brandon, M. A.; Smith, J.; Garrow, K. H.; Law, A.

    2013-12-01

    The UK Open University has a long history of working with broadcast media - indeed before it first formed over 40 years ago it was proposed to be a "University of the Air ". Originally the University made its own television programmes that were directly connected with teaching. They were usually recordings of academics giving lectures that were broadcast late at night. Over recent times we have moved into developing co-productions with mainstream broadcast media specifically designed to be of general educational interest to UK and worldwide audiences. These include both high impact one-off programmes such as Are we changing planet Earth?, multiple international award winning series such as Frozen Planet, and World Service radio such as Earth Reporters. These programmes have had global audiences; in some cases of tens of millions. Whilst we have only worked using clear scientific evidence and expertise, we have co-produced media which small sections of the general public could consider controversial. For example, in Are we changing planet Earth? the case was presented pre IPCC AR4 for anthropogenic climate change. The final episode of Frozen Planet "On thin ice" presented evidence of how the polar climate is changing and likely future global impacts. It created a large and occasionally hostile international media impact long before broadcast. This continued after broadcast in some media but we believe it stopped because the science presented was robust within the current literature. Based around broadcasting, we used a communication strategy based on our personal experience over the last decade along with our institutional experience going back 40 years. For example our outreach include social media, newspapers, radio and podcasts to speak about underpinning science. We use Twitter during actual broadcasts to circulate links to journal articles and provide context around the science presented on screen. Backed up by a large public outreach campaign at science fairs

  19. T-Learning: An Interactive Learning Services Framework for Indian Educational Broadcasts

    Directory of Open Access Journals (Sweden)

    Shubhanshu Gupta, Sayali Godbole, Yogesh Angadi, Sudesh Mudliar

    2012-12-01

    Full Text Available The digitization of television broadcasting in India has opened newer vistas for Technology Enhanced Learning, The cable digitization mandate 2012 and the Digitization of Doordarshan Terrestrial network by 2017 [2] coupled with the advancement in set-top box technology is all what is needed as a platform for technology enhanced learning on Television known as T-Learning. In this paper we will present with the current status in India while demonstrate the prototype of T-Learning Framework for Indian Interactive educational broadcasts.

  20. Linear Network Coding on Multi-Mesh of Trees using All to All Broadcast

    Directory of Open Access Journals (Sweden)

    Nitin Rakesh

    2011-05-01

    Full Text Available We introduce linear network coding on parallel architecture for multi-source finite acyclic network. In this problem, different messages in diverse time periods are broadcast and every non-source node in the network decodes and encodes the message based on further communication.We wish to minimize the communication steps and time complexity involved in transfer of data from node-to-node during parallel communication.We have used Multi-Mesh of Trees (MMT topology for implementing network coding. To envisage our result, we use all-to-all broadcast as communication algorithm.