LOCATION-BASED SERVICES USING SIP

OpenAIRE

Abdullah Azfar,; Md. Sakhawat Hossen,; María José Peroza Marval; Razib Hayat Khan

2010-01-01

Due to the popularity of Location-Based Services and IP telephony, we decided to review a number of different proposals to implement Location-Based Services over a SIP-based mobile network. The result is an interesting overview about the potential functionalities of Location-Based Services and the capabilities of SIP for implementingthese services.

In campus location finder using mobile application services

Science.gov (United States)

Fai, Low Weng; Audah, Lukman

2017-09-01

Navigation services become very common in this era, the application include Google Map, Waze and etc. Although navigation application contains the main routing service in open area but not all of the buildings are recorded in the database. In this project, an application is made for the indoor and outdoor navigation in Universiti Tun Hussein Onn Malaysia (UTHM). It is used to help outsider and new incoming students by navigating them from their current location to destination using mobile application name "U Finder". Thunkable website has been used to build the application for outdoor and indoor navigation. Outdoor navigation is linked to the Google Map and indoor navigation is using the QR code for positioning and routing picture for navigation. The outdoor navigation can route user to the main faculties in UTHM and indoor navigation is only done for the G1 building in UTHM.

A Middleware Based Approach to Dynamically Deploy Location Based Services onto Heterogeneous Mobile Devices Using Bluetooth in Indoor Environment

Science.gov (United States)

Sadhukhan, Pampa; Sen, Rijurekha; Das, Pradip K.

Several methods for providing location based service (LBS) to mobile devices in indoor environment using wireless technologies like WLAN, RFID and Bluetooth have been proposed, implemented and evaluated. However, most of them do not focus on heterogeneity of mobile platforms, memory constraint of mobile devices, the adaptability of client or device to the new services it discovers whenever it reaches a new location. In this paper, we have proposed a Middleware based approach of LBS provision in the indoor environment, where a Bluetooth enabled Base Station (BS) detects Bluetooth enabled mobile devices and pushes a proper client application only to those devices that belong to some registered subscriber of LBS. This dynamic deployment enables the mobile clients to access any new service without having preinstalled interface to that service beforehand and thus the client's memory consumption is reduced. Our proposed work also addresses the other issues like authenticating the clients before providing them LBSs and introducing paid services. We have evaluated its performance in term of file transfer time with respect to file size and throughput with respect to distance. Experimental results on service consumption time by the mobile client for different services are also presented.

A Location-Based Service Using Geometric Location Methods to Unite Mobile Users

Directory of Open Access Journals (Sweden)

Wen-Chen Hu

2016-02-01

Full Text Available Since the introduction of iPhone in 2007, many location-based services (LBSs have been created and new LBSs are found every day. This research proposes yet another LBS, which is practical and was not found before to the best of authors' knowledge. The problem is described as follows. It happens all the times while several groups of people are traveling towards a destination, they lose contact from each other on the way. This research tries to have the groups travel as closely as possible until they reach the destination. It uses a method of minimum covering ellipses to find whether the groups are separated by more than a threshold/distance. If they are, the system will find a convenient rendezvous for all groups by using a method of geometric median. After meeting at the rendezvous, the groups reset the service and continue their journey. By using this LBS, travelers do not need to worry about losing connections with others. This method can also be applied to the problem of finding a convenient meeting place for mobile users.

Location-aware mobile technologies: historical, social and spatial approaches

Directory of Open Access Journals (Sweden)

Adriana de Souza e Silva

2013-04-01

Full Text Available With the popularization of smartphones, location-based services are increasingly part of everyday live. People use their cell phones to find nearby restaurants, friends in the vicinity, and track their children. Although location-based services have received sparse attention from mobile communications cholars to date, the ability of locating people and things with one’s cell phone is not new. Since the removal of GPS signal degradation in 2000, artists and researchers have been exploring how location-awareness influences mobility, spatiality and sociability. Besides exploring the historical antecedents of today’s location-based services, this paper focuses on the main social issues that emerge when location-aware technologies leave the strict domain of art and research and become part of everyday life: locational privacy, sociability, and spatiality. Finally, this paper addresses two main topics that future mobile communication research that focus on location-awareness should take into consideration: a shift in the meaning of location, and the adoption and appropriation of location-aware technologies in the global south.

Legal Aspects of a Location-Based Mobile Advertising Platform

DEFF Research Database (Denmark)

Cleff, Evelyne Beatrix; Gidofalvi, Gyozo

2008-01-01

Recent advances in communication and information technology, such as the increasing accuracy of GPS technology and the miniaturization of wireless communication devices pave the road for Location-Based Services. Among these services, mobile advertising is predicted to represent a high yield revenue...... stream. In this article the possibilities of using a location-aware mobile messenger for the purpose of mobile advertising will be introduced. However, mobile advertising may become an extremely intrusive practice if the user's privacy is not taken in account. The objective of this article is therefore...

Mobile phone middleware architecture for energy and context awareness in location-based services.

Science.gov (United States)

Galeana-Zapién, Hiram; Torres-Huitzil, César; Rubio-Loyola, Javier

2014-12-10

The disruptive innovation of smartphone technology has enabled the development of mobile sensing applications leveraged on specialized sensors embedded in the device. These novel mobile phone applications rely on advanced sensor information processes, which mainly involve raw data acquisition, feature extraction, data interpretation and transmission. However, the continuous accessing of sensing resources to acquire sensor data in smartphones is still very expensive in terms of energy, particularly due to the periodic use of power-intensive sensors, such as the Global Positioning System (GPS) receiver. The key underlying idea to design energy-efficient schemes is to control the duty cycle of the GPS receiver. However, adapting the sensing rate based on dynamic context changes through a flexible middleware has received little attention in the literature. In this paper, we propose a novel modular middleware architecture and runtime environment to directly interface with application programming interfaces (APIs) and embedded sensors in order to manage the duty cycle process based on energy and context aspects. The proposed solution has been implemented in the Android software stack. It allows continuous location tracking in a timely manner and in a transparent way to the user. It also enables the deployment of sensing policies to appropriately control the sampling rate based on both energy and perceived context. We validate the proposed solution taking into account a reference location-based service (LBS) architecture. A cloud-based storage service along with online mobility analysis tools have been used to store and access sensed data. Experimental measurements demonstrate the feasibility and efficiency of our middleware, in terms of energy and location resolution.

A Generic Framework for Location-Based Services (LBS Provisioning

Directory of Open Access Journals (Sweden)

Ioannis Priggouris

2006-01-01

Full Text Available Location Based Services can be considered as one of the most rapidly expanding fields of the mobile communications sector, with an impressively large application range. The proliferation of mobile/wireless Internet and mobile computing, and the constantly increasing use of handheld, mobile devices and position tracking technologies prepared the grounds for the introduction of this new type of services. The combination of position fixing mechanisms with location-dependent, geographical information, can offer truly customized personal communication services through the mobile phone or other type of devices. Prompted by the avalanche of technology advances in the aforementioned areas in this paper we present an integrated platform for delivering Location Based Services (LBS. The platform covers the full life cycle of a LBS starting from the specification of the service, covering issues like the deployment and maintenance of services, the service invocation and the final delivery of the produced results to the invoking user. A prototype implementation of the discussed platform was developed and used to perform a series of trial services, with the purpose of demonstrating the pursued functionality.

Mobile Phone Middleware Architecture for Energy and Context Awareness in Location-Based Services

Science.gov (United States)

Galeana-Zapién, Hiram; Torres-Huitzil, César; Rubio-Loyola, Javier

2014-01-01

The disruptive innovation of smartphone technology has enabled the development of mobile sensing applications leveraged on specialized sensors embedded in the device. These novel mobile phone applications rely on advanced sensor information processes, which mainly involve raw data acquisition, feature extraction, data interpretation and transmission. However, the continuous accessing of sensing resources to acquire sensor data in smartphones is still very expensive in terms of energy, particularly due to the periodic use of power-intensive sensors, such as the Global Positioning System (GPS) receiver. The key underlying idea to design energy-efficient schemes is to control the duty cycle of the GPS receiver. However, adapting the sensing rate based on dynamic context changes through a flexible middleware has received little attention in the literature. In this paper, we propose a novel modular middleware architecture and runtime environment to directly interface with application programming interfaces (APIs) and embedded sensors in order to manage the duty cycle process based on energy and context aspects. The proposed solution has been implemented in the Android software stack. It allows continuous location tracking in a timely manner and in a transparent way to the user. It also enables the deployment of sensing policies to appropriately control the sampling rate based on both energy and perceived context. We validate the proposed solution taking into account a reference location-based service (LBS) architecture. A cloud-based storage service along with online mobility analysis tools have been used to store and access sensed data. Experimental measurements demonstrate the feasibility and efficiency of our middleware, in terms of energy and location resolution. PMID:25513821

Mobile Phone Middleware Architecture for Energy and Context Awareness in Location-Based Services

Directory of Open Access Journals (Sweden)

Hiram Galeana-Zapién

2014-12-01

Full Text Available The disruptive innovation of smartphone technology has enabled the development of mobile sensing applications leveraged on specialized sensors embedded in the device. These novel mobile phone applications rely on advanced sensor information processes, which mainly involve raw data acquisition, feature extraction, data interpretation and transmission. However, the continuous accessing of sensing resources to acquire sensor data in smartphones is still very expensive in terms of energy, particularly due to the periodic use of power-intensive sensors, such as the Global Positioning System (GPS receiver. The key underlying idea to design energy-efficient schemes is to control the duty cycle of the GPS receiver. However, adapting the sensing rate based on dynamic context changes through a flexible middleware has received little attention in the literature. In this paper, we propose a novel modular middleware architecture and runtime environment to directly interface with application programming interfaces (APIs and embedded sensors in order to manage the duty cycle process based on energy and context aspects. The proposed solution has been implemented in the Android software stack. It allows continuous location tracking in a timely manner and in a transparent way to the user. It also enables the deployment of sensing policies to appropriately control the sampling rate based on both energy and perceived context. We validate the proposed solution taking into account a reference location-based service (LBS architecture. A cloud-based storage service along with online mobility analysis tools have been used to store and access sensed data. Experimental measurements demonstrate the feasibility and efficiency of our middleware, in terms of energy and location resolution.

Akzeptanz von Location Based Services

OpenAIRE

Bauer, Hans H.; Haber, Tobias E.; Reichardt, Tina; Bökamp, Marten

2006-01-01

Die enormen Investitionen in UMTS-Lizenzen und den Aufbau einer neuen Netzinfrastruktur zwingen die Mobilfunkanbieter zur Erschließung neuer Umsatzpotenziale. Durch Entwicklung neuer mobiler Mehrwertdienste hoffen sie, die „Killerapplikation“ der 3. Mobilfunkgeneration zu finden, die ähnlich wie der Short Message Service (SMS) für GSM, zum Treiber des UMTS-Markterfolges werden kann. Nach Meinung vieler Marktbeobachter könnten Location Based Services, d.h. mobile Dienste, die ...

Mobility through Location-based Services at University

Directory of Open Access Journals (Sweden)

S. Martín

2008-07-01

Full Text Available Location tracking systems are becoming morerelevant in many new environments, due to the fact they thecore of context aware applications. This new concept canimprove the way universities provide services and a widenumber of companies do business. Inside university area,users location (both students, teachers and staff gives rise toa new kind of services based on their profile and on the areain which the user is in each moment, allowing apersonalization of the offered contents. The present papershows how location-based applications can be developed formobile devices through a middleware that allows differentlocation methods, such as Wi-Fi and RFID. Finally somelocation-based applications are given showing possibleexamples in different environments.

Detection of mobile user location on next generation wireless networks

DEFF Research Database (Denmark)

Schou, Saowanee; Olesen, Henning

2005-01-01

This paper proposes a novel conceptual mechanism for detecting the location of a mobile user on next generation wireless networks. This mechanism can provide location information of a mobile user at different levels of accuracy, by applying the movement detection mechanism of Mobile IPv6 at both...... macro- and micromobility level. In this scheme, an intradomain mobility management protocol (IDMP) is applied to manage the location of the mobile terminal. The mobile terminal needs two care-of addresses, a global care-of address (GCoA) and a local care-of address (LCoA). The current location...... of a Mobile IPv6 device can be determined by mapping the geographical location information with the two care-of-addresses and the physical address of the access point where the user is connected. Such a mechanism makes location services for mobile entities available on a global IP network. The end-users can...

User-Aware Location Management of Prosumed Micro-services

OpenAIRE

Klein, Bernhard; López-de-Ipiña, Diego; Guggenmos, Christian; Pérez-Velasco, Jorge

2014-01-01

The MUGGES mobile service prosuming platform aims at enabling user-aware service provision and consumption from the very mobile devices in a true peer-to-peer manner, still providing centralized support to user- and location-aware micro-service searching. Thus, users will not only provide contents but also launch and host services from their own mobile devices. Explorative field trials in Spain and Finland assessing the potential of the ‘prosuming concept' were carried out for several weeks w...

Indoor location-based services prerequisites and foundations

CERN Document Server

Werner, Martin

2014-01-01

This book delivers concise coverage of classical methods and new developments related to indoor location-based services. It collects results from isolated domains including geometry, artificial intelligence, statistics, cooperative algorithms, and distributed systems and thus provides an accessible overview of fundamental methods and technologies. This makes it an ideal starting point for researchers, students, and professionals in pervasive computing. Location-based services are services using the location of a mobile computing device as their primary input. While such services are fairly e

Privacy vs. Reward in Indoor Location-Based Services

Directory of Open Access Journals (Sweden)

Fawaz Kassem

2016-10-01

Full Text Available With the advance of indoor localization technology, indoor location-based services (ILBS are gaining popularity. They, however, accompany privacy concerns. ILBS providers track the users’ mobility to learn more about their behavior, and then provide them with improved and personalized services. Our survey of 200 individuals highlighted their concerns about this tracking for potential leakage of their personal/private traits, but also showed their willingness to accept reduced tracking for improved service. In this paper, we propose PR-LBS (Privacy vs. Reward for Location-Based Service, a system that addresses these seemingly conflicting requirements by balancing the users’ privacy concerns and the benefits of sharing location information in indoor location tracking environments. PR-LBS relies on a novel location-privacy criterion to quantify the privacy risks pertaining to sharing indoor location information. It also employs a repeated play model to ensure that the received service is proportionate to the privacy risk. We implement and evaluate PR-LBS extensively with various real-world user mobility traces. Results show that PR-LBS has low overhead, protects the users’ privacy, and makes a good tradeoff between the quality of service for the users and the utility of shared location data for service providers.

Cost-Effective Location Management for Mobile Agents on the Internet

Directory of Open Access Journals (Sweden)

Chien-Sheng Chen

2015-01-01

Full Text Available Many mobile agent system-related services and applications require interacting with a mobile agent by passing messages. However, an agent’s mobility raises several challenges in delivering messages to a mobile agent accurately. Consisting of tracking and message delivery phases, most mobile agent location management schemes create or receive many update messages and interaction messages to ensure the effectiveness of the schemes. In addition to downgrading the overall performance of a mobile agent location management scheme, excessive transmission of messages increases the network load. The migration locality of a mobile agent and the interaction rate between mobile agents significantly affect the performance of a mobile agent location management scheme with respect to location management cost. This work presents a novel Dual Home based Scheme (DHS that can lower the location management costs in terms of migration locality and interaction rate. While the DHS scheme uniquely adopts dual home location management architecture, a selective update strategy based on that architecture is also designed for cost-effective location management of mobile agents. Moreover, DHS is compared with available schemes based on formulations and simulation experiments from the perspective of location management costs. Simulation results demonstrate that the proposed DHS scheme performs satisfactorily in terms of migration locality and interaction rate.

Application of Digital Cellular Radio for Mobile Location Estimation

Directory of Open Access Journals (Sweden)

Farhat Anwar

2012-08-01

Full Text Available The capability to locate the position of mobiles is a prerequisite to implement a wide range of evolving ITS services. Radiolocation has the potential to serve a wide geographical area. This paper reports an investigation regarding the feasibility of utilizing cellular radio for the purpose of mobile location estimation. Basic strategies to be utilized for location estimation are elaborated. Two possible approaches for cellular based location estimation are investigated with the help of computer simulation. Their effectiveness and relative merits and demerits are identified. An algorithm specifically adapted for cellular environment is reported with specific features where mobiles, irrespective of their numbers, can locate their position without adversely loading the cellular system.Key Words: ITS, GSM, Cellular Radio, DRGS, GPS.

Perancangan Aplikasi Mobile Location Based Service (LBS Untuk Lokasi Penyewaan Rumah Kos di Kota Semarang Berbasis Android

Directory of Open Access Journals (Sweden)

Maulana Muhammad Iqbal

2015-04-01

Full Text Available Until now, Diponegoro University has become one of the favorite State Univesity for Senior High school students to continuing education college. During this time existing information of boarding house around the Diponegoro University still conventional, there is no mobile device applications that provide information and location of boarding house. Based on this information, it should be made an application on android Operating System to search the location of the boarding house in Semarang. Design of Mobile Location Based Service Application for boarding house locations in Semarang Based Android, a client server application created by using the Java, PHP, jQuery and MySQL for database. Intake form of latitude and longitude coordinates utilize the GPS feature on the mobile device and will be shown on Google Maps APIs. The results of this application design is the realization of a application that can search the location of boarding house based on android operating system, with features that can help users find the position of the boarding house. The application can help boarding house owners to promote their boarding house information rooming in their possession to the user. The design also introduces application android application development using the Global Positioning System functions for user navigation.

Enabling Routes as Context in Mobile Services

DEFF Research Database (Denmark)

Brilingaite, Agne; Jensen, Christian Søndergaard; Zokaite, Nora

2004-01-01

With the continuing advances in wireless communications, geo-positioning, and portable electronics, an infrastructure is emerging that enables the delivery of on-line, location-enabled services to very large numbers of mobile users. A typical usage situation for mobile services is one characterized...... by a small screen and no keyboard, and by the service being only a secondary focus of the user. It is therefore particularly important to deliver the "right" information and service at the right time, with as little user interaction as possible. This may be achieved by making services context aware.Mobile...

Radio-location of mobile stations in third generation networks

Directory of Open Access Journals (Sweden)

Milan Manojle Šunjevarić

2013-06-01

Full Text Available Mobile station localization in mobile networks started with simple methods (e.g. Cell-ID method which required only slight modifications of network infrastructures. Principally, it was about network localization by which a localization service became available to all types of mobile phones. Due to low precision, the initiated development of more sophisticated methods has not been finished yet. Among the advanced location-based methods are those based on the measurement of location parameters in the time domain. In this paper the general consideration of radio location methods in 3G (UMTS radio networks is presented. The use of time based measurement methods was analysed in detail. Due to the limited article length, the use of other locating methods in 3G networks (based on power measurements, on radio direction measurement, and on cells identification – Cell ID and global positioning system - GPS are not described. Introduction Mobile station localization within modern cellular networks increases the level of user security and opens wide opportunities for commercial operators who provide this service. The major obstacle for the implementation of this service, which also prevents its practical usage, is the modification of the existing network infrastructure. In general, depending on the infrastructure used, positioning methods can be divided into two groups: integrated and independent. Integrated methods are primarily created for communication networks. A possibility to locate users represents just an additional service within a radio network. Independent methods are totally detached from the communication network in which the user whose location is being determined is. Radio location methods Determining the location of a mobile radio station is performed by determining the intersection of two or more lines of position. These lines represent the position of the set of points at which the mobile station may be located. These lines can be: (a

Cost-Effective Location Management for Mobile Agents on the Internet

OpenAIRE

Chien-Sheng Chen; Jiing-Dong Hwang; Chyuan-Der Lu; Ting-Yuan Yeh

2015-01-01

Many mobile agent system-related services and applications require interacting with a mobile agent by passing messages. However, an agent’s mobility raises several challenges in delivering messages to a mobile agent accurately. Consisting of tracking and message delivery phases, most mobile agent location management schemes create or receive many update messages and interaction messages to ensure the effectiveness of the schemes. In addition to downgrading the overall performance of a mobile ...

Advanced location-based technologies and services

CERN Document Server

Karimi, Hassan A

2013-01-01

Due to the rapid increase in the number of mobile device users worldwide, location-based services (LBSs) have become pervasive, and the demand for them will continue to grow. Exploring recent changes in the technology and its uses, Advanced Location-Based Technologies and Services takes an in-depth look at new and existing technologies, techniques, applications, and opportunities. Under the editorial guidance of Hassan Karimi, with contributions from experts in the field, the book examines the breadth and depth of advanced LBS technologies and techniques. The book provides up-to-date informati

Decision Tree-Based Contextual Location Prediction from Mobile Device Logs

Directory of Open Access Journals (Sweden)

Linyuan Xia

2018-01-01

Full Text Available Contextual location prediction is an important topic in the field of personalized location recommendation in LBS (location-based services. With the advancement of mobile positioning techniques and various sensors embedded in smartphones, it is convenient to obtain massive human mobile trajectories and to derive a large amount of valuable information from geospatial big data. Extracting and recognizing personally interesting places and predicting next semantic location become a research hot spot in LBS. In this paper, we proposed an approach to predict next personally semantic place with historical visiting patterns derived from mobile device logs. To address the problems of location imprecision and lack of semantic information, a modified trip-identify method is employed to extract key visit points from GPS trajectories to a more accurate extent while semantic information are added through stay point detection and semantic places recognition. At last, a decision tree model is adopted to explore the spatial, temporal, and sequential features in contextual location prediction. To validate the effectiveness of our approach, experiments were conducted based on a trajectory collection in Guangzhou downtown area. The results verified the feasibility of our approach on contextual location prediction from continuous mobile devices logs.

Efficient Information Access for Location-Based Services in Mobile Environments

Science.gov (United States)

Lee, Chi Keung

2009-01-01

The demand for pervasive access of location-related information (e.g., local traffic, restaurant locations, navigation maps, weather conditions, pollution index, etc.) fosters a tremendous application base of "Location Based Services (LBSs)". Without loss of generality, we model location-related information as "spatial objects" and the accesses…

A Hybrid Location Privacy Solution for Mobile LBS

Directory of Open Access Journals (Sweden)

Ruchika Gupta

2017-01-01

Full Text Available The prevalent usage of location based services, where getting any service is solely based on the user’s current location, has raised an extreme concern over location privacy of the user. Generalized approaches dealing with location privacy, referred to as cloaking and obfuscation, are mainly based on a trusted third party, in which all the data remain available at a central server and thus complete knowledge of the query exists at the central node. This is the major limitation of such approaches; on the other hand, in trusted third-party-free framework clients collaborate with each other and freely communicate with the service provider without any third-party involvement. Measuring and evaluating trust among peers is a crucial aspect in trusted third-party-free framework. This paper exploits the merits and mitigating the shortcomings of both of these approaches. We propose a hybrid solution, HYB, to achieve location privacy for the mobile users who use location services frequently. The proposed HYB scheme is based on the collaborative preprocessing of location data and utilizes the benefits of homomorphic encryption technique. Location privacy is achieved at two levels, namely, at the proximity level and at distant level. The proposed HYB solution preserves the user’s location privacy effectively under specific, pull-based, sporadic query scenario.

A Location-Aware Service Deployment Algorithm Based on K-Means for Cloudlets

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Tyng-Yeu Liang

2017-01-01

Full Text Available Cloudlet recently was proposed to push data centers towards network edges for reducing the network latency of delivering cloud services to mobile devices. For the sake of user mobility, it is necessary to deploy and hand off services anytime anywhere for achieving the minimal network latency for users’ service requests. However, the cost of this solution usually is too high for service providers and is not effective for resource exploitation. To resolve this problem, we propose a location-aware service deployment algorithm based on K-means for cloudlets in this paper. Simply speaking, the proposed algorithm divides mobile devices into a number of device clusters according to the geographical location of mobile devices and then deploys service instances onto the edge cloud servers nearest to the centers of device clusters. Our performance evaluation has shown that the proposed algorithm can effectively reduce not only the network latency of edge cloud services but also the number of service instances used for satisfying the condition of tolerable network latency.

Location service for wireless network using improved RSS-based cellular localisation

Science.gov (United States)

Fayaz, Sara; Sarrafian, Sara

2014-06-01

Value-added services, especially in mobile environments, have recently become the key component of making more profit and attracting more subscribers. One of the most commonly used such service is location-based advertiser services. The main issue which should be considered in providing such services is determining the position of the mobile terminals precisely. In this paper, one pattern recognition localisation method based on the signal strength appropriated for implementing a location-based service is presented. The main aim is to introduce some practical solutions to decrease error and computational load and also eliminate the necessity of updating the database. Practical results illustrate high accuracy of this technique and its suitability to apply in such services. The mean error declines to 9.7 m and mean error corresponding to CDF = 67% and CDF = 95% are less than 11 m and 23 m, respectively. We also present a location-based advertising service, in which the customer's interests and local time are considered, in order to enhance the efficiency and individualism of this service.

Policy-Aware Sender Anonymity in Location-Based Services

Science.gov (United States)

Vyas, Avinash

2011-01-01

Sender anonymity in Location-based services (LBS) refers to hiding the identity of a mobile device user who sends requests to the LBS provider for services in her proximity (e.g. "find the nearest gas station etc."). The goal is to keep the requester's interest private even from attackers who (via hacking or subpoenas) gain access to the LBS…

Improving Teacher-Student Contact in a Campus through a Location-Based Mobile Application

Science.gov (United States)

Ferreira, Vítor Manuel; Ramos, Fernando

2014-01-01

This paper presents a new mobile micro-broadcast (or near-me) Location-Based Service designed to promote face-to-face communication among users located within a given geographical area such as a University campus. Because the communication services provided are time dependent, the application decides whom to contact based on the geographic…

A Demonstration of Mobility Prediction as a Service in Cloudified LTE Networks

NARCIS (Netherlands)

Zhao, Zhongliang; Karimzadeh Motallebi Azar, Morteza; Braun, Torsten; Pras, Aiko; van den Berg, Hans Leo

2015-01-01

Location prediction has attracted a significant amount of research effort. Being able to predict users’ movement benefits a wide range of communication systems, including location-based service/applications, mobile access control, mobile QoS provision, and resource management for mobile computation

In-route skyline querying for location-based services

DEFF Research Database (Denmark)

Xuegang, Huang; Jensen, Kristian S.

2005-01-01

With the emergence of an infrastructure for location-aware mobile services, the processing of advanced, location-based queries that are expected to underlie such services is gaining in relevance, While much work has assumed that users move in Euclidean space, this paper assumes that movement...... their efficient computation. The queries take into account several spatial preferences. and they intuitively return a set of most interesting results for each result returned by the corresponding non-skyline queries. The paper also covers a performance study of the proposed techniques based on real point...

Probabilistic results for a mobile service scenario

DEFF Research Database (Denmark)

Møller, Jesper; Yiu, Man Lung

We consider the following stochastic model for a mobile service scenario. Consider a stationary Poisson process in Rd, with its points radially ordered with respect to the origin (the anchor); if d = 2, the points may correspond to locations of e.g. restaurants. A user, with a location different...

The Mobile Satellite Services Market.

Science.gov (United States)

Anderson, Samuel

Mobile satellite (MSAT) technology is the basis for a new component of the telecommunications industry capable of providing services to small inexpensive subscriber terminals located almost any place in the world. The market for MSAT space segment capacity (bandwidth and power) is a natural monopoly that can be logically and technically…

7 CFR 1755.500 - RUS standard for service installations at customers access locations.

Science.gov (United States)

2010-01-01

... 7 Agriculture 11 2010-01-01 2010-01-01 false RUS standard for service installations at customers... customers access locations. (a) Sections 1755.501 through 1755.510 cover service installations at permanent or mobile home customer access locations. Sections 1755.501 through 1755.510 do not cover service...

Enabling Routes as Context in Mobile Services

DEFF Research Database (Denmark)

Brilingaite, Agne; Jensen, Christian Søndergaard; Zokaite, Nora

With the continuing advances in wireless communications, geo-positioning, and portable electronics, an infrastructure is emerging that enables the delivery of on-line, location-enabled services to very large numbers of mobile users. A typical usage situation for mobile services is one characteriz...... and accumulates the routes of a user along with their usage patterns and that makes the routes available to services. Experiences from using the component on logs of GPS positions acquired from vehicles traveling within a real road network are reported....... by a small screen and no keyboard, and by the service being only a secondary focus of the user. Under such circumstances, it is particularly important to deliver the "right" information and service at the right time, with as little user interaction as possible. This may be achieved by making services context...

iParking: An Intelligent Indoor Location-Based Smartphone Parking Service

OpenAIRE

Liu, Jingbin; Chen, Ruizhi; Chen, Yuwei; Pei, Ling; Chen, Liang

2012-01-01

Indoor positioning technologies have been widely studied with a number of solutions being proposed, yet substantial applications and services are still fairly primitive. Taking advantage of the emerging concept of the connected car, the popularity of smartphones and mobile Internet, and precise indoor locations, this study presents the development of a novel intelligent parking service called iParking. With the iParking service, multiple parties such as users, parking facilities and service p...

Mechanism design for mobile geo-location advertising

OpenAIRE

Gatti, Nicola; Rocco, Marco; Ceppi, Sofia; Gerding, Enrico H.

2014-01-01

Mobile geo–location advertising, where mobile ads are targeted based on a user’s location, has been identified as a key growth factor for the mobile market. As with online advertising, a crucial ingredient for their success is the development of effective economic mechanisms. An important difference is that mobile ads are shown sequentially over time and information about the user can be learned based on their movements. Furthermore, ads need to be shown selectively to prevent ad fatigue. To ...

PENGEMBANGAN MOBILE ADVERTISING SEBAGAI SARANA PROMOSI TOKO ROTI DAN KUE MENGGUNAKAN LOCATION BASED SERVICE

Directory of Open Access Journals (Sweden)

Ika Arfiani

2016-07-01

Full Text Available Pertumbuhan pengguna layanan mobile data dan mobile internet di Indonesia meningkat pesat dibandingkan voice dan sms. Sehingga kehidupan manusia bagai tak terpisah antara jarak, tempat, dan waktu. Dengan mudahnya manusia dapat melakukan komunikasi dan mengakses informasi tak peduli dimanapun dia tempatnya. Apalagi dengan beragamnya alat komunikasi yang kini beredar ditengah masyarakat, salah satunya adalah smartphone android. Permasalahan yang umum dihadapi adalah bagaimana membangun suatu aplikasi pada platform Android untuk pencarian lokasi toko roti dan kue beserta alamatnya. Hal tersebut telah terjawab dengan adanya sistem operasi android yang open source, Dengan adanya aplikasi ini maka pengguna yang mempunyai tingkat kesibukan atau mobilitas yang tinggi tidak perlu lagi mencari lokasi toko roti dengan mencari ataupun bertanya dimana lokasi toko roti yang terdekat, karena Aplikasi ini telah menyediakan fitur pencarian secara lengkap, sehingga pengguna dapat mencari lokasi toko roti yang terdekat kapanpun dan dimanapun hanya dengan ponsel Android yang dimilikinya. Kelebihan aplikasi ini dapat digunakan untuk membantu mencari lokasi toko roti dan kue berdasarkan jenis tokonya serta lokasi yang terdekat dari posisi kita berada. Aplikasi ini akan menampilkan secara detail informasi dari toko yang ada berupa nama, alamat, nomor telepon, gambar / foto dan tampilan peta yang bersumber dari Google Maps.Hasil pengujian sistem menunjukkan bahwa aplikasi dapat memberikan informasi lokasi toko kepada pengguna, melakukan panggilan telepon ke toko yang dituju, melakukan share promosi, serta menampilkan map sekaligus rute terpendek menuju lokasi merchant yang ingin dituju. Rute terpendek yang didapat telah mampu menemukan lokasi tujuan dengan jarak yang relative pendek dan tergambar dalam google map. Kata Kunci : Android, Mobile Application, Rute Terpendek, Location Based Service,

Dynamic Location and Forwarding Pointers for Mobility Management

Directory of Open Access Journals (Sweden)

Charles Abondo

2005-01-01

Full Text Available GSM and IS-41 are two mobility management standards widely used in second generation networks. These two standards lean on a centralized architecture made up of home location registers (HLRs and visitor location registers (VLRs. From these standards, the location update and search procedures always imply interrogation of the HLR, even if the two mobile terminals that want to communicate are in the same location area. Given the limited bandwidth of the radio operator channel and the new time sensitive applications of third-generation systems, such an approach of mobility management is not convenient for the next generation mobile networks. This paper proposes a method for reducing the processing load and the signalization traffic generated by update and search location procedures compared to IS-41 standard. Taking into account the specific characteristics of the traffic in the mobile networks, it introduces a semi-dynamic approach based on a hybrid architecture using forwarding pointers without the load related to the dynamic models. Numerical results show that such a method significantly improves the efficiency of location procedures.

Designing Android Based Augmented Reality Location-Based Service Application

Directory of Open Access Journals (Sweden)

Alim Hardiansyah

2018-01-01

Full Text Available Android is an operating system for Linux based smartphone. Android provides an open platform for the developers to create their own application. The most developed and used application now is location based application. This application gives personalization service for mobile device user and is customized to their location. Location based service also gives an opportunity for the developers to develop and increase the value of service. One of the technologies that could be combined with location based application is augmented reality. Augmented reality combines the virtual world with the real one. By the assistance of augmented reality, our surrounding environment could interact in digital form. Information of objects and environment surround us could be added to the augmented reality system and presented. Based on the background, the writers tried to implement those technologies on now rapidly developing android application as a final project to achieve bachelor degree in Department of Informatics Engineering, Faculty of Information Technology and Visual Communication, Al Kamal Science and Technology Institute. This application could be functioned to locate school by using location based service technology with the assistance of navigational applications such as waze and google maps, in form of live direction process through the smartphone

Location-aware mobile media and urban sociability

DEFF Research Database (Denmark)

Sutko, Daniel; de Souza e Silva, Adriana Araujo

2011-01-01

Location-aware mobile media allow users to see their locations on a map on their mobile phone screens. These applications either disclose the physical positions of known friends, or represent the locations of groups of unknown people. We call these interfaces eponymous and anonymous, respectively...... location-aware mobile media, namely their ability to increase one’s spatial awareness and to encourage one to meet more people in public spaces, might be fallacious due to pre-existing practices of sociability in the city. We explore these issues in the light of three bodies of theory: Goffman......’s presentation of self in everyday life, Simmel’s ideas on sociability, and Lehtonen and Mäenpää’s concept of street sociability....

Online Location-based Mobile Gaming: CityZombie - A basic approach to introducing location in mobile games

OpenAIRE

Rolland, Øyvind

2008-01-01

Mobile phone gaming has seen an enormous growth over the last decade and many countries now have more cell phone subscriptions than they have people. Combined with the ever increasing interest in games, the mobile gaming market still hasn't reached it's full potential. Newer and more powerful phones with interesting features hit the market every day. Many of those features are directed at locating position, and that opens up for the prospect of location-based gaming. This branch of gaming is ...

UrbanWeb: a Platform for Mobile, Context-aware Web Services

DEFF Research Database (Denmark)

Hansen, Frank Allan; Grønbæk, Kaj

2011-01-01

much benefit from being informed about the user’s context and tailored to the user’s location or the activities the user is engaged in. In this article we focus on the definition of context and context-awareness for mobile Web 2.0 services and we present a framework, UrbanWeb, which has been designed......’s context from sensors in today mobile phones, ranging from GPS data, to 2D visual barcodes, and manual entry of context information and how to utilize this information in Web applications. Finally a number of applications built with the framework are presented.......Faster Internet connections on the mobile Internet and new advanced mobile terminals make it possible to use Web 2.0 applications and service beyond the desktop wherever and whenever you want. However, even though some service may scale in their current form to the mobile Internet, others will very...

Mobile communications data services marketing

Directory of Open Access Journals (Sweden)

Stanislav Marušić

2006-12-01

Full Text Available Increasing revenue per user is very important for mobile operators because of shrinking growth from mobile voice services on a number of markets. At the same time, a more powerful platform enabling advanced mobile data services has emerged. Therefore, mobile data services offer great possibilities to operators in the future. Marketing plays the key role in offering new and existing data services. Experiences in launching various services, primarily a comparison of Japanese and other experiences, shows that different strategies and marketing mix employed in launching data services can lead to different business results in this area. The needs and preferences of Croatian mobile users are explored in this paper, especially in the following areas: the most used and potentially most interesting data services, a preferred way of paying for these services, the importance of transaction security in mobile payments and a comparison of the use of and interest in such services by users with more advanced mobile terminals and those with older mobile phones. Results imply that a strong and attractive presence of these services in the media is crucial to success. It is also important to communicate clearly the benefits of these services, along with lower prices (or promotional periods as well as easy activation and use. Last but not least: the existence of attractive content and applications (where fair arrangements among all providers of these services is the main prerequisite is essential for a faster adoption and use of these services.

Mobile Phone Detection of Semantic Location and Its Relationship to Depression and Anxiety.

Science.gov (United States)

Saeb, Sohrab; Lattie, Emily G; Kording, Konrad P; Mohr, David C

2017-08-10

Is someone at home, at their friend's place, at a restaurant, or enjoying the outdoors? Knowing the semantic location of an individual matters for delivering medical interventions, recommendations, and other context-aware services. This knowledge is particularly useful in mental health care for monitoring relevant behavioral indicators to improve treatment delivery. Local search-and-discovery services such as Foursquare can be used to detect semantic locations based on the global positioning system (GPS) coordinates, but GPS alone is often inaccurate. Mobile phones can also sense other signals (such as movement, light, and sound), and the use of these signals promises to lead to a better estimation of an individual's semantic location. We aimed to examine the ability of mobile phone sensors to estimate semantic locations, and to evaluate the relationship between semantic location visit patterns and depression and anxiety. A total of 208 participants across the United States were asked to log the type of locations they visited daily, using their mobile phones for a period of 6 weeks, while their phone sensor data was recorded. Using the sensor data and Foursquare queries based on GPS coordinates, we trained models to predict these logged locations, and evaluated their prediction accuracy on participants that models had not seen during training. We also evaluated the relationship between the amount of time spent in each semantic location and depression and anxiety assessed at baseline, in the middle, and at the end of the study. While Foursquare queries detected true semantic locations with an average area under the curve (AUC) of 0.62, using phone sensor data alone increased the AUC to 0.84. When we used Foursquare and sensor data together, the AUC further increased to 0.88. We found some significant relationships between the time spent in certain locations and depression and anxiety, although these relationships were not consistent. The accuracy of location

Understanding the Representativeness of Mobile Phone Location Data in Characterizing Human Mobility Indicators

Directory of Open Access Journals (Sweden)

Shiwei Lu

2017-01-01

Full Text Available The advent of big data has aided understanding of the driving forces of human mobility, which is beneficial for many fields, such as mobility prediction, urban planning, and traffic management. However, the data sources used in many studies, such as mobile phone location and geo-tagged social media data, are sparsely sampled in the temporal scale. An individual’s records can be distributed over a few hours a day, or a week, or over just a few hours a month. Thus, the representativeness of sparse mobile phone location data in characterizing human mobility requires analysis before using data to derive human mobility patterns. This paper investigates this important issue through an approach that uses subscriber mobile phone location data collected by a major carrier in Shenzhen, China. A dataset of over 5 million mobile phone subscribers that covers 24 h a day is used as a benchmark to test the representativeness of mobile phone location data on human mobility indicators, such as total travel distance, movement entropy, and radius of gyration. This study divides this dataset by hour, using 2- to 23-h segments to evaluate the representativeness due to the availability of mobile phone location data. The results show that different numbers of hourly segments affect estimations of human mobility indicators and can cause overestimations or underestimations from the individual perspective. On average, the total travel distance and movement entropy tend to be underestimated. The underestimation coefficient results for estimation of total travel distance are approximately linear, declining as the number of time segments increases, and the underestimation coefficient results for estimating movement entropy decline logarithmically as the time segments increase, whereas the radius of gyration tends to be more ambiguous due to the loss of isolated locations. This paper suggests that researchers should carefully interpret results derived from this type of

The distribution of communication cost for a mobile service scenario

DEFF Research Database (Denmark)

Møller, Jesper; Yiu, Man Lung

We consider the following mathematical model for a mobile service scenario. Consider a planar stationary Poisson process, with its points radially ordered with respect to the origin (the anchor); these points may correspond to locations of e.g. restaurants. A user, with a location different from...

WIRELESS TECHNOLOGIES for LOCATION-BASED SERVICES

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Dewi Wirastuti

2012-06-01

Full Text Available This paper presents an overview of wireless technologies that support location-based services (LBS. Satellite and cellular networks have exploited their communication infrastructure to offer LBS. The rapid deployment of mobile broadband wireless networks has offered another appealing application area. Key to the realisation of LBS is an efficient and accurate positioning technique with various methods and offering different performance levels. So far, Global Positioning System (GPS has offered the best accuracy at a low cost but it is challenged by poor indoor coverage. With the rapid deployment of broadband wireless access ubiquitously, Mobile WiMAX (Worldwide Interoperability for Microwave Access is seen as a potential positioning option for LBS. Some key features of WiMAX, i.e., broadband benefit, high speed and large coverage area; it will be exploited to provide LBS.

Performance analysis of a self-locating mobile sensor

DEFF Research Database (Denmark)

Bøgsted, Martin; Rasmussen, Jakob Gulddahl; Lundbye-Christensen, Søren

to an autoregressive model. Measurement uncertainty is assumed to follow a Gaussian distribution and the probability for detecting a distance to a given sensor is assumed to fall off exponentially with squared distance. The combined model is formulated as a nonlinear state space model and Bayesian inference......We consider the ability of a mobile sensor to locate its own geographical location, the so-called self-localization problem. The need to locate people and objects has inspired the development of many systems for automatic localization. Most systems are based on location information and measured...... the performance of localization algorithms in mobile and critical situations. This is done by exploring the performance of various filtering techniques for self-localization of a mobile sensor in a field of sensors. More specifically, we model the mobility of the sensor such that the velocity varies according...

Modeling and performance analysis of an improved movement-based location management scheme for packet-switched mobile communication systems.

Science.gov (United States)

Chung, Yun Won; Kwon, Jae Kyun; Park, Suwon

2014-01-01

One of the key technologies to support mobility of mobile station (MS) in mobile communication systems is location management which consists of location update and paging. In this paper, an improved movement-based location management scheme with two movement thresholds is proposed, considering bursty data traffic characteristics of packet-switched (PS) services. The analytical modeling for location update and paging signaling loads of the proposed scheme is developed thoroughly and the performance of the proposed scheme is compared with that of the conventional scheme. We show that the proposed scheme outperforms the conventional scheme in terms of total signaling load with an appropriate selection of movement thresholds.

Enabling Routes of Road Network Constrained Movements as Mobile Service Context

DEFF Research Database (Denmark)

Jensen, Christian Søndergaard

2007-01-01

With the continuing advances in wireless communications, geo-positioning, and portable electronics, an infrastructure is emerging that enables the delivery of on-line, location-enabled services to very large numbers of mobile users. A typical usage situation for mobile services is one characteriz...... vehicles traveling within a real road network are reported...... by a small screen and no keyboard, and by the service being only a secondary focus of the user. Under such circumstances, it is particularly important to deliver the "right" information and service at the right time, with as little user interaction as possible. This may be achieved by making services context...

A Location-Based Interactive Model of Internet of Things and Cloud (IoT-Cloud) for Mobile Cloud Computing Applications.

Science.gov (United States)

Dinh, Thanh; Kim, Younghan; Lee, Hyukjoon

2017-03-01

This paper presents a location-based interactive model of Internet of Things (IoT) and cloud integration (IoT-cloud) for mobile cloud computing applications, in comparison with the periodic sensing model. In the latter, sensing collections are performed without awareness of sensing demands. Sensors are required to report their sensing data periodically regardless of whether or not there are demands for their sensing services. This leads to unnecessary energy loss due to redundant transmission. In the proposed model, IoT-cloud provides sensing services on demand based on interest and location of mobile users. By taking advantages of the cloud as a coordinator, sensing scheduling of sensors is controlled by the cloud, which knows when and where mobile users request for sensing services. Therefore, when there is no demand, sensors are put into an inactive mode to save energy. Through extensive analysis and experimental results, we show that the location-based model achieves a significant improvement in terms of network lifetime compared to the periodic model.

Content Adaptation for Heterogeneous Mobile Devices using web-based Mobile Services

OpenAIRE

Schmohl, Robert;Baumgarten, Uwe;Köthner, Lars

2017-01-01

Recent advances in mobile computing have spawned a very heterogeneous environment of mobile devices. Those devices have di erent capabilities in providing mobile services to the user, implying the challenge of considering heterogeneous devices during mobile service development. This especially encompasses the task of adapting the content, which a mobile service provides to a specific mobile device. In this paper we present an approach using a service platform, which utilizes a content adaptat...

76 FR 59916 - Interconnected VoIP Service; Wireless E911 Location Accuracy Requirements; E911 Requirements for...

Science.gov (United States)

2011-09-28

... 2010 almost all 2G and 3G handsets shipped by manufacturers were equipped with GPS-chips, by the end of...-based standard over time. We also require all Commercial Mobile Radio Service (CMRS) providers... Commercial Mobile Radio Service (CMRS) networks to comply with the handset-based location criteria...

Service Level Agreement for the QoS Guaranteed Mobile IPTV Services over Mobile WiMAX Networks

OpenAIRE

Chowdhury, Mostafa Zaman; Trung, Bui Minh; Jang, Yeong Min; Kim, Young-Il; Ryu, Won

2011-01-01

While mobile IPTV services are supported through the mobile WiMAX networks, there must need some guaranteed bandwidth for the IPTV services especially if IPTV and non-IPTV services are simultaneously supported by the mobile WiMAX networks. The quality of an IPTV service definitely depends on the allocated bandwidth for that channel. However, due to the high quality IPTV services and to support of huge non-IPTV traffic over mobile WiMAX networks, it is not possible to guarantee the sufficient ...

A proposal to design a Location-based Mobile Cardiac Emergency System (LMCES).

Science.gov (United States)

Keikhosrokiani, Pantea; Mustaffa, Norlia; Zakaria, Nasriah; Sarwar, Muhammad Imran

2012-01-01

Healthcare for elderly people has become a vital issue. The Wearable Health Monitoring System (WHMS) is used to manage and monitor chronic disease in elderly people, postoperative rehabilitation patients and persons with special needs. Location-aware healthcare is achievable as positioning systems and telecommunications have been developed and have fulfilled the technology needed for this kind of healthcare system. In this paper, the researchers propose a Location-Based Mobile Cardiac Emergency System (LMCES) to track the patient's current location when Emergency Medical Services (EMS) has been activated as well as to locate the nearest healthcare unit for the ambulance service. The location coordinates of the patients can be retrieved by GPS and sent to the healthcare centre using GPRS. The location of the patient, cell ID information will also be transmitted to the LMCES server in order to retrieve the nearest health care unit. For the LMCES, we use Dijkstra's algorithm for selecting the shortest path between the nearest healthcare unit and the patient location in order to facilitate the ambulance's path under critical conditions.

Location based services

OpenAIRE

Doan, Cong Nam

2015-01-01

Mobile devices (tablets, smart phones, laptops) are proving themselves to be the main means of accessing information of the future. The embodiment of Recommender Systems (RSs) into mobile environments, as a matter of fact, has come about to serve as a way to solve the nuisances of data overwhelming. RSs' main advantage is their ability to allow users to find useful information according to the users' preferences and location. Even though they are not free of shortcoming such as the limitation...

Exploring technology acceptance for mobile services

Directory of Open Access Journals (Sweden)

Kenny Phan

2011-07-01

Full Text Available Purpose: Mobile phone industries are no longer relying on voice services. It is predicted that data services are expected to be a remediation for the declining of average revenue per user (ARPU in telecommunication market. The purpose of this paper is to find the factors that influence the acceptance/adoption of mobile services.Design/methodology/approach: This paper utilizes quantitative method. Questionnaire were distributed to collect the data. The questionnaires are designed specifically to address the factors related to mobile services. Later on, this paper uses Analytical Hierarchical Process (AHP and Cluster analysis to identify the factors that influence the adoption of mobile services.Findings: The results show that ease of use and usefulness are top two factors that influence the adoption of mobile services.Research limitations/implications: The sample for the study is relatively small. For future research, the sample should be increased. The data collection should also look into different devices and operating system of mobile phones to find if there is any significant difference in adopting mobile services.Practical implications: This framework is expected to be able to help the mobile services provider to design better mobile services that can attract users to adopt them. Originality/value: This is the follow on research on the previous study that employed different method. This study is to confirm and support the findings from previous study.

Breadcrumbs: location and context aware mobile platform for story sharing

OpenAIRE

Dias, César Manuel Nascimento

2014-01-01

With the current proliferation of sensor equipped mobile devices such as smartphones and tablets, location aware services are expanding beyond the mere efficiency and work related needs of users, evolving in order to incorporate fun, culture and the social life of users. Today people on the move have more and more connectivity and are expected to be able to communicate with their usual and familiar social networks. That means communications not only with their peers and c...

Geo-Enabled, Mobile Services

DEFF Research Database (Denmark)

Jensen, Christian Søndergaard

2006-01-01

We are witnessing the emergence of a global infrastructure that enables the widespread deployment of geo-enabled, mobile services in practice. At the same time, the research community has also paid increasing attention to data management aspects of mobile services. This paper offers me...

An Optimal Mobile Service for Telecare Data Synchronization using a Role-based Access Control Model and Mobile Peer-to-Peer Technology.

Science.gov (United States)

Ke, Chih-Kun; Lin, Zheng-Hua

2015-09-01

The progress of information and communication technologies (ICT) has promoted the development of healthcare which has enabled the exchange of resources and services between organizations. Organizations want to integrate mobile devices into their hospital information systems (HIS) due to the convenience to employees who are then able to perform specific healthcare processes from any location. The collection and merage of healthcare data from discrete mobile devices are worth exploring possible ways for further use, especially in remote districts without public data network (PDN) to connect the HIS. In this study, we propose an optimal mobile service which automatically synchronizes the telecare file resources among discrete mobile devices. The proposed service enforces some technical methods. The role-based access control model defines the telecare file resources accessing mechanism; the symmetric data encryption method protects telecare file resources transmitted over a mobile peer-to-peer network. The multi-criteria decision analysis method, ELECTRE (Elimination Et Choice Translating Reality), evaluates multiple criteria of the candidates' mobile devices to determine a ranking order. This optimizes the synchronization of telecare file resources among discrete mobile devices. A prototype system is implemented to examine the proposed mobile service. The results of the experiment show that the proposed mobile service can automatically and effectively synchronize telecare file resources among discrete mobile devices. The contribution of this experiment is to provide an optimal mobile service that enhances the security of telecare file resource synchronization and strengthens an organization's mobility.

A Location-Based Interactive Model of Internet of Things and Cloud (IoT-Cloud for Mobile Cloud Computing Applications

Directory of Open Access Journals (Sweden)

Thanh Dinh

2017-03-01

Full Text Available This paper presents a location-based interactive model of Internet of Things (IoT and cloud integration (IoT-cloud for mobile cloud computing applications, in comparison with the periodic sensing model. In the latter, sensing collections are performed without awareness of sensing demands. Sensors are required to report their sensing data periodically regardless of whether or not there are demands for their sensing services. This leads to unnecessary energy loss due to redundant transmission. In the proposed model, IoT-cloud provides sensing services on demand based on interest and location of mobile users. By taking advantages of the cloud as a coordinator, sensing scheduling of sensors is controlled by the cloud, which knows when and where mobile users request for sensing services. Therefore, when there is no demand, sensors are put into an inactive mode to save energy. Through extensive analysis and experimental results, we show that the location-based model achieves a significant improvement in terms of network lifetime compared to the periodic model.

GAUSS Market Analysis for Integrated Satellite Communication and Navigation Location Based services

Science.gov (United States)

Di Fazio, Antonella; Dricot, Fabienne; Tata, Francesco

2003-07-01

The demand for mobile information services coupled with positioning technologies for delivering value- added services that depend on a user's location has rapidly increased during last years. In particular, services and applications related with improved mobility safety and transport efficiency look very attractive.Solutions for location services vary in respect of positioning accuracy and the technical infrastructure required, and the associated investment in terminals and networks. From the analysis of the state-of-the art, it comes that various technologies are currently available on the European market, while mobile industry is gearing up to launch a wide variety of location services like tracking, alarming and locating.Nevertheless, when addressing safety of life as well as security applications, severe hurdles have to be posed in the light of existing technologies. Existing navigation (e.g. GPS) and communication systems are not able to completely satisfy the needs and requirements of safety-of-life-critical applications. As a matter of fact, the GPS system's main weaknesses today is its lack of integrity, which means its inability to warn users of a malfunction in a reasonable time, while the other positioning techniques do not provide satisfactory accuracy as well, and terrestrial communication networks are not capable to cope with stringent requirement in terms of service reliability and coverage.In this context, GAUSS proposes an innovative satellite-based solution using novel technology and effective tools for addressing mobility challenges in a cost efficient manner, improving safety and effectiveness.GAUSS (Galileo And UMTS Synergetic System) is a Research and Technological Development project co- funded by European Commission, within the frame of the 5th IST Programme. The project lasted two years, and it was successfully completed in November 2002. GAUSS key concept is the integration of Satellite Navigation GNSS and UMTS communication technology, to

Mobile social network services for families with children with developmental disabilities.

Science.gov (United States)

Chou, Li-Der; Lai, Nien-Hwa; Chen, Yen-Wen; Chang, Yao-Jen; Yang, Jyun-Yan; Huang, Lien-Fu; Chiang, Wen-Ling; Chiu, Hung-Yi; Shin, Haw-Yun

2011-07-01

As Internet technologies evolve, their applications have changed various aspects of human life. Here, we attempt to examine their potential impact on services for families with developmentally delayed children. Our research is thus designed to utilize wireless mobile communication technologies, location services, and search technology in an effort to match families of specific needs with potential care providers. Based on the investigation conducted by our counselors, this paper describes a platform for smooth communication between professional communities and families with children with developmental disabilities (CDD). This research also looks into the impact of management of mobile social network services and training on the operation of these services. Interaction opportunities, care, and support to families with CDD are introduced.

Peer-to-Peer Location-Based Services based on Blockchain and Web Technologies

OpenAIRE

Brambilla, Giacomo

2017-01-01

A distinctive feature of smart cities is the fruitful and effective interconnection among mobile users and resources, to support the fulfillment of sophisticated location-based services (LBSs). LBSs are increasingly taking advantage of user geographic location to provide a broad range of applications, such as traffic monitoring, social networking, emergency management and advertising. Unfortunately, most LBSs rely upon centralized infrastructures, thus raising, besides scalability and r...

47 CFR 20.9 - Commercial mobile radio service.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 2 2010-10-01 2010-10-01 false Commercial mobile radio service. 20.9 Section... COMMERCIAL MOBILE RADIO SERVICES § 20.9 Commercial mobile radio service. (a) The following mobile services shall be treated as common carriage services and regulated as commercial mobile radio services...

Full On-Device Stay Points Detection in Smartphones for Location-Based Mobile Applications

Directory of Open Access Journals (Sweden)

Rafael Pérez-Torres

2016-10-01

Full Text Available The tracking of frequently visited places, also known as stay points, is a critical feature in location-aware mobile applications as a way to adapt the information and services provided to smartphones users according to their moving patterns. Location based applications usually employ the GPS receiver along with Wi-Fi hot-spots and cellular cell tower mechanisms for estimating user location. Typically, fine-grained GPS location data are collected by the smartphone and transferred to dedicated servers for trajectory analysis and stay points detection. Such Mobile Cloud Computing approach has been successfully employed for extending smartphone’s battery lifetime by exchanging computation costs, assuming that on-device stay points detection is prohibitive. In this article, we propose and validate the feasibility of having an alternative event-driven mechanism for stay points detection that is executed fully on-device, and that provides higher energy savings by avoiding communication costs. Our solution is encapsulated in a sensing middleware for Android smartphones, where a stream of GPS location updates is collected in the background, supporting duty cycling schemes, and incrementally analyzed following an event-driven paradigm for stay points detection. To evaluate the performance of the proposed middleware, real world experiments were conducted under different stress levels, validating its power efficiency when compared against a Mobile Cloud Computing oriented solution.

Full On-Device Stay Points Detection in Smartphones for Location-Based Mobile Applications.

Science.gov (United States)

Pérez-Torres, Rafael; Torres-Huitzil, César; Galeana-Zapién, Hiram

2016-10-13

The tracking of frequently visited places, also known as stay points, is a critical feature in location-aware mobile applications as a way to adapt the information and services provided to smartphones users according to their moving patterns. Location based applications usually employ the GPS receiver along with Wi-Fi hot-spots and cellular cell tower mechanisms for estimating user location. Typically, fine-grained GPS location data are collected by the smartphone and transferred to dedicated servers for trajectory analysis and stay points detection. Such Mobile Cloud Computing approach has been successfully employed for extending smartphone's battery lifetime by exchanging computation costs, assuming that on-device stay points detection is prohibitive. In this article, we propose and validate the feasibility of having an alternative event-driven mechanism for stay points detection that is executed fully on-device, and that provides higher energy savings by avoiding communication costs. Our solution is encapsulated in a sensing middleware for Android smartphones, where a stream of GPS location updates is collected in the background, supporting duty cycling schemes, and incrementally analyzed following an event-driven paradigm for stay points detection. To evaluate the performance of the proposed middleware, real world experiments were conducted under different stress levels, validating its power efficiency when compared against a Mobile Cloud Computing oriented solution.

Innovative Secure Mobile Banking Services

Directory of Open Access Journals (Sweden)

Mousa T AL-Akhras

2011-01-01

Full Text Available Due to the widespread use of computer technologies in almost all aspects of life, organisations that are connected to the Internet started extending their services to their customers to include new applications and services that satisfy their customers’ desires to make better businesses. One of these emerging applications is mobile banking. The term mobile banking (or m-banking describes the banking services that the user can perform via a mobile device ubiquitously at anytime and from anywhere. In order for users to access their accounts, they need a mobile device and network connectivity. Therefore, sitting in front of a computer is not a requirement anymore; accessing accounts can occur while users are waiting their turn at the dentist clinic or relaxing at the beach! This paper explores the opportunities of using mobile technology in the electronic banking (e-banking sector to enhance existing banking services by moving toward m-banking using mobile devices and wireless media that can provide opportunities for ubiquitous access to the banking services as mobile technologies can be used at anytime and from anywhere. The technical problems encountered while using the mobile devices presents some technical difficulties and challenges for the m-banking. In this paper we introduce a mobile system that demonstrates the flexibility gained out of this technology and covers the major aspects of such kind of applications. The proposed system covers two parts: the customer services (user interface and the security aspects. In the user interface part, banking facility is provided to the user through the mobile device to implement banking transactions. The model provides customers with the services: billing payments, transferring of funds, viewing of customer’s accounts and transactions, allowing the user to change his/her password and request a cheque book. The application takes into consideration security aspects, it satisfies the following

Mobile School Service

Directory of Open Access Journals (Sweden)

Borislav Odadzic

2010-04-01

Full Text Available What is in common for the majority of young people? Mobile phone. In epoch of rapid development of information technologies the time came in which only few people do not have mobiles, especially among young people in high schools. Researches which we made in our school say that this percentage (rate is really high 99,23% at this moment. The educational institutions should use this opportunity. In aim to improve the success of students the mobile service is developed, which will be described in this work. This is first result which provides a cognitive tool which is supporting the independent learning by applying mobile phones with wireless communication technology to extend learning outside of the classroom in Serbia. The service was developed during times when we didn’t know anything about how much and in which way m-learning was being used in the world.

Crowd-Sourced Mobility Mapping for Location Tracking Using Unlabeled Wi-Fi Simultaneous Localization and Mapping

Directory of Open Access Journals (Sweden)

Mu Zhou

2015-01-01

Full Text Available Due to the increasing requirements of the seamless and round-the-clock Location-based services (LBSs, a growing interest in Wi-Fi network aided location tracking is witnessed in the past decade. One of the significant problems of the conventional Wi-Fi location tracking approaches based on received signal strength (RSS fingerprinting is the time-consuming and labor intensive work involved in location fingerprint calibration. To solve this problem, a novel unlabeled Wi-Fi simultaneous localization and mapping (SLAM approach is developed to avoid the location fingerprinting and additional inertial or vision sensors. In this approach, an unlabeled mobility map of the coverage area is first constructed by using the crowd-sourcing from a batch of sporadically recorded Wi-Fi RSS sequences based on the spectral cluster assembling. Then, the sequence alignment algorithm is applied to conduct location tracking and mobility map updating. Finally, the effectiveness of this approach is verified by the extensive experiments carried out in a campus-wide area.

Establishing Mobile Financial Services in Ethiopia

Science.gov (United States)

Kanagwa, James R.

2016-01-01

Mobile phone service is increasing among low income populations; however, with over 1 billion mobile service users worldwide, many people still lack banking services. Banks do not reach out to the poor because of the high operational costs involved. Scholars and industry practitioners have indicated that mobile phones could be an alternative…

Two Approaches for Successful Mapping GPS Data to Underlying Road Network in Location-based Services

NARCIS (Netherlands)

Meratnia, Nirvana; Kyandoghere, Kyamakya

Latest data acquisition techniques facilitate the provision of real-time location-based services. With the coming about of miniature and cheap GPS receivers and cellular phones, new horizons have been opened for such services. The mobile telephony and Internet technology within the GIS environment

Handbook of Mobile Systems Applications and Services

CERN Document Server

Kumar, Anup

2012-01-01

From fundamental concepts and theories to implementation protocols and cutting-edge applications, the Handbook of Mobile Systems Applications and Services supplies a complete examination of the evolution of mobile services technologies. It examines service-oriented architecture (SOA) and explains why SOA and Service Oriented Computing (SOC) will play key roles in the development of future mobile services. Investigating current service discovery frameworks, the book covers the basics of mobile services and applications developed in various contexts. The first section provides readers with the r

Biomechanical effects of mobile computer location in a vehicle cab.

Science.gov (United States)

Saginus, Kyle A; Marklin, Richard W; Seeley, Patricia; Simoneau, Guy G; Freier, Stephen

2011-10-01

The objective of this research is to determine the best location to place a conventional mobile computer supported by a commercially available mount in a light truck cab. U.S. and Canadian electric utility companies are in the process of integrating mobile computers into their fleet vehicle cabs. There are no publications on the effect of mobile computer location in a vehicle cab on biomechanical loading, performance, and subjective assessment. The authors tested four locations of mobile computers in a light truck cab in a laboratory study to determine how location affected muscle activity of the lower back and shoulders; joint angles of the shoulders, elbows, and wrist; user performance; and subjective assessment. A total of 22 participants were tested in this study. Placing the mobile computer closer to the steering wheel reduced low back and shoulder muscle activity. Joint angles of the shoulders, elbows, and wrists were also closer to neutral angle. Biomechanical modeling revealed substantially less spinal compression and trunk muscle force. In general, there were no practical differences in performance between the locations. Subjective assessment indicated that users preferred the mobile computer to be as close as possible to the steering wheel. Locating the mobile computer close to the steering wheel reduces risk of injuries, such as low back pain and shoulder tendonitis. Results from the study can guide electric utility companies in the installation of mobile computers into vehicle cabs. Results may also be generalized to other industries that use trucklike vehicles, such as construction.

A Platform for e-Health Control and Location Services for Wandering Patients

Directory of Open Access Journals (Sweden)

Samantha Yasivee Carrizales-Villagómez

2018-01-01

Full Text Available Wandering patients frequently have diseases that demand continuous health control, such as taking pills at specific times, constant blood pressure and heart rate monitoring, temperature and stress level checkups, and so on. These could be jeopardized by their wandering behavior. Mobile applications that focus on health care have received special interest from medical specialists. These applications have been widely accepted, due to the availability of smart devices that include sensors. However, sensor-based applications are highly energy demanding and as such, they can be unaffordable in mobile e-health control due to battery constraints. This paper presents the design and implementation of a platform aimed at providing support in e-health control and provision of location services for wandering patients through real-time medical and mobility information analysis. The platform includes a configurable mobile application for heart rate and stress level monitoring based on Bluetooth Low Energy technology (BLE, and a web service for monitoring and control of the wandering patients. Due to battery limitations of smart devices with sensors, the mobile application includes energy-efficient handling and transmission policies to make more efficient the transmission of medical information from the sensor-based smart device to the web service. In turn, the web service provides e-health control services for patients and caregivers. Through the platform functionality, caregivers (and patients can receive notifications and suggestions in response to emergency, contingency situations, or deviations from health and mobility patterns of the wandering patients. This paper describes a platform that conceals continuous monitoring with energy-efficient applications in favor of e-health control of wandering patients.

A Location-Based Interactive Model of Internet of Things and Cloud (IoT-Cloud) for Mobile Cloud Computing Applications †

Science.gov (United States)

Dinh, Thanh; Kim, Younghan; Lee, Hyukjoon

2017-01-01

This paper presents a location-based interactive model of Internet of Things (IoT) and cloud integration (IoT-cloud) for mobile cloud computing applications, in comparison with the periodic sensing model. In the latter, sensing collections are performed without awareness of sensing demands. Sensors are required to report their sensing data periodically regardless of whether or not there are demands for their sensing services. This leads to unnecessary energy loss due to redundant transmission. In the proposed model, IoT-cloud provides sensing services on demand based on interest and location of mobile users. By taking advantages of the cloud as a coordinator, sensing scheduling of sensors is controlled by the cloud, which knows when and where mobile users request for sensing services. Therefore, when there is no demand, sensors are put into an inactive mode to save energy. Through extensive analysis and experimental results, we show that the location-based model achieves a significant improvement in terms of network lifetime compared to the periodic model. PMID:28257067

Location Privacy Protection Based on Improved K-Value Method in Augmented Reality on Mobile Devices

Directory of Open Access Journals (Sweden)

Chunyong Yin

2017-01-01

Full Text Available With the development of Augmented Reality technology, the application of location based service (LBS is more and more popular, which provides enormous convenience to people’s life. User location information could be obtained at anytime and anywhere. So user location privacy security suffers huge threats. Therefore, it is crucial to pay attention to location privacy protection in LBS. Based on the architecture of the trusted third party (TTP, we analyzed the advantages and shortages of existing location privacy protection methods in LBS on mobile terminal. Then we proposed the improved K-value location privacy protection method according to privacy level, which combines k-anonymity method with pseudonym method. Through the simulation experiment, the results show that this improved method can anonymize all service requests effectively. In addition to the experiment of execution time, it demonstrated that our proposed method can realize the location privacy protection more efficiently.

Mobile Location-Based Services for Trusted Information in Disaster Management

Science.gov (United States)

Ragia, Lemonia; Deriaz, Michel; Seigneur, Jean-Marc

The goal of the present chapter is to provide location-based services for disaster management. The application involves services related to the safety of the people due to an unexpected event. The current prototype is implemented for a specific issue of disaster management which is road traffic control. The users can ask requests on cell phones or via Internet to the system and get an answer in a display or in textual form. The data are in a central database and every user can input data via virtual tags. The system is based on spatial messages which can be sent from any user to any other in a certain distance. In this way all the users and not a separate source provide the necessary information for a dangerous situation. To avoid any contamination problems we use trust security to check the input to the system and a trust engine model to provide information with a considerable reliability.

Exploring the Evolution of New Mobile Services

Directory of Open Access Journals (Sweden)

Yong Chen

2017-01-01

Full Text Available The emergence and widespread use of mobile Internet technology has led to many different kinds of new mobile communications services, such as WeChat. Users could have more choices when attempting to satisfy their communications needs. The ability to predict the way in which users will use new mobile communications services is extremely valuable to mobile communications service providers. In this work, we propose a method for predicting how a user will use a new mobile service. Our scheme is inspired by the evolutionary game theory. With large-scale real world datasets collected from mobile service providers, we first extract the benefit-related features for users who were starting to use a new mobile service. Then we design our training and prediction methods for predicting potential users. We evaluate our scheme using experiments with large-scale real data. The results show that our approach can predict users’ future behavior with satisfying accuracy.

Towards Location Based QoS-Aware Network Selection Mechanism for the Nomadic Mobile Services

NARCIS (Netherlands)

Pawar, P.; van Beijnum, Bernhard J.F.; Wac, K.E.; Hermens, Hermanus J.; Konstantas, D.

The advances in the area of location based computing will soon make it feasible to predict the availability of wireless networks and their application level Quality of Service (QoS) characteristics along the location and time dimensions. Such predictions are referred to as QoS predictions which are

Collaborative QoS Prediction for Mobile Service with Data Filtering and SlopeOne Model

Directory of Open Access Journals (Sweden)

Yuyu Yin

2017-01-01

Full Text Available The mobile service is a widely used carrier for mobile applications. With the increase of the number of mobile services, for service recommendation and selection, the nonfunctional properties (also known as quality of service, QoS become increasingly important. However, in many cases, the number of mobile services invoked by a user is quite limited, which leads to the large number of missing QoS values. In recent years, many prediction algorithms, such as algorithms extended from collaborative filtering (CF, are proposed to predict QoS values. However, the ideas of most existing algorithms are borrowed from the recommender system community, not specific for mobile service. In this paper, we first propose a data filtering-extended SlopeOne model (filtering-based CF, which is based on the characteristics of a mobile service and considers the relation with location. Also, using the data filtering technique in FB-CF and matrix factorization (MF, this paper proposes another model FB-MF (filtering-based MF. We also build an ensemble model, which combines the prediction results of FB-CF model and FB-MF model. We conduct sufficient experiments, and the experimental results demonstrate that our models outperform all compared methods and achieve good results in high data sparsity scenario.

Mobile financial services and financial inclusion: Is it a boon for savings mobilization?

Directory of Open Access Journals (Sweden)

Shem Alfred Ouma

2017-06-01

Full Text Available The adoption of mobile telephony to provide financial services in Africa has become instrumental in integrating the hitherto unbanked segments of the population to the mainstream financial systems. This study sought to establish this linkage by examining whether the pervasive use of mobile telephony to provide financial services is a boon for savings mobilization in selected countries in sub Saharan Africa. The findings show that availability and usage of mobile phones to provide financial services promotes the likelihood of saving at the household level. Not only does access to mobile financial services boost the likelihood to save, but also has a significant impact on the amounts saved, perhaps due to the frequency and convenience with which such transactions can be undertaken using a mobile phone. Both forms of savings, that is, basic mobile phone savings stored in the phone and bank integrated mobile savings are likely to be promoted by use of mobile phones. Thus, growing and deepening the scope for mobile phone financial services is an avenue for promoting savings mobilization, especially among the poor and low income groups with constrained access to formal financial services.

Privacy-Preserving Location-Based Services

Science.gov (United States)

Chow, Chi Yin

2010-01-01

Location-based services (LBS for short) providers require users' current locations to answer their location-based queries, e.g., range and nearest-neighbor queries. Revealing personal location information to potentially untrusted service providers could create privacy risks for users. To this end, our objective is to design a privacy-preserving…

Marketing mobile imaging services.

Science.gov (United States)

McCue, P

1987-09-01

Competition in the mobile imaging arena has put radiologists, radiology directors, and other health care professionals in the unfamiliar position of being marketing agents for their services. Mobile imaging is being promoted through consumer advertising as well as through the traditional route of physician referral. This article offers some of the marketing lessons being learned in the mobile arena.

A Fine-Grained and Privacy-Preserving Query Scheme for Fog Computing-Enhanced Location-Based Service.

Science.gov (United States)

Yang, Xue; Yin, Fan; Tang, Xiaohu

2017-07-11

Location-based services (LBS), as one of the most popular location-awareness applications, has been further developed to achieve low-latency with the assistance of fog computing. However, privacy issues remain a research challenge in the context of fog computing. Therefore, in this paper, we present a fine-grained and privacy-preserving query scheme for fog computing-enhanced location-based services, hereafter referred to as FGPQ. In particular, mobile users can obtain the fine-grained searching result satisfying not only the given spatial range but also the searching content. Detailed privacy analysis shows that our proposed scheme indeed achieves the privacy preservation for the LBS provider and mobile users. In addition, extensive performance analyses and experiments demonstrate that the FGPQ scheme can significantly reduce computational and communication overheads and ensure the low-latency, which outperforms existing state-of-the art schemes. Hence, our proposed scheme is more suitable for real-time LBS searching.

Mobile Cloud-Computing-Based Healthcare Service by Noncontact ECG Monitoring

Directory of Open Access Journals (Sweden)

Ee-May Fong

2013-12-01

Full Text Available Noncontact electrocardiogram (ECG measurement technique has gained popularity these days owing to its noninvasive features and convenience in daily life use. This paper presents mobile cloud computing for a healthcare system where a noncontact ECG measurement method is employed to capture biomedical signals from users. Healthcare service is provided to continuously collect biomedical signals from multiple locations. To observe and analyze the ECG signals in real time, a mobile device is used as a mobile monitoring terminal. In addition, a personalized healthcare assistant is installed on the mobile device; several healthcare features such as health status summaries, medication QR code scanning, and reminders are integrated into the mobile application. Health data are being synchronized into the healthcare cloud computing service (Web server system and Web server dataset to ensure a seamless healthcare monitoring system and anytime and anywhere coverage of network connection is available. Together with a Web page application, medical data are easily accessed by medical professionals or family members. Web page performance evaluation was conducted to ensure minimal Web server latency. The system demonstrates better availability of off-site and up-to-the-minute patient data, which can help detect health problems early and keep elderly patients out of the emergency room, thus providing a better and more comprehensive healthcare cloud computing service.

Map-based mobile services design, interaction and usability

CERN Document Server

Meng, Liqiu; Winter, Stephan; Popovich, Vasily

2008-01-01

This book reports the newest research and technical achievements on the following theme blocks: Design of mobile map services and its constraints; Typology and usability of mobile map services; Visualization solutions on small displays for time-critical tasks; Mobile map users; Interaction and adaptation in mobile environments; and Applications of map-based mobile services.

Autonomous E-Mobility as a Service - Final Report

OpenAIRE

Pitera, Kelly; Marinelli, Giuseppe

2017-01-01

Mobility as a Service (MaaS) is a systems-oriented approach of integration of numerous transport services into a single, seamless mobility service using a technology platform. Building on MaaS to incorporate both electric and autonomous mobility, the concept of Autonomous E-Mobility as a Service (AE-MaaS) is examined within this project as a way to improve the environmental sustainability of urban mobility. Through a series of workshops and meetings, the aim was to understand the feasibility ...

A secure mobile crowdsensing (MCS) location tracker for elderly in smart city

Science.gov (United States)

Shien, Lau Khai; Singh, Manmeet Mahinderjit

2017-10-01

According to the UN's (United Nations) projection, Malaysia will achieve ageing population status by 2030. The challenge of the growing ageing population is health and social care services. As the population lives longer, the costs of institutional care rises and elderly who not able live independently in their own homes without caregivers. Moreover, it restricted their activity area, safety and freedom in their daily life. Hence, a tracking system is worthy for their caregivers to track their real-time location with efficient. Currently tracking and monitoring systems are unable to satisfy the needs of the community. Hence, Indoor-Outdoor Elderly Secure and Tracking care system (IOET) proposed to track and monitor elderly. This Mobile Crowdsensing type of system is using indoor and outdoor positioning system to locate elder which utilizes the RFID, NFC, biometric system and GPS aim to secure the safety of elderly within indoors and outdoors environment. A mobile application and web-based application to be designed for this system. This system able to real-time tracking by combining GPS and NFC for outdoor coverage where ideally in smart city. In indoor coverage, the system utilizes active RFID tracking elderly movement. The system will prompt caregiver wherever elderly movement or request by using the notification service which provided the real-time notify. Caregiver also can review the place that visited by elderly and trace back elderly movement.

Mobility-Assisted on-Demand Routing Algorithm for MANETs in the Presence of Location Errors

Directory of Open Access Journals (Sweden)

Trung Kien Vu

2014-01-01

Full Text Available We propose a mobility-assisted on-demand routing algorithm for mobile ad hoc networks in the presence of location errors. Location awareness enables mobile nodes to predict their mobility and enhances routing performance by estimating link duration and selecting reliable routes. However, measured locations intrinsically include errors in measurement. Such errors degrade mobility prediction and have been ignored in previous work. To mitigate the impact of location errors on routing, we propose an on-demand routing algorithm taking into account location errors. To that end, we adopt the Kalman filter to estimate accurate locations and consider route confidence in discovering routes. Via simulations, we compare our algorithm and previous algorithms in various environments. Our proposed mobility prediction is robust to the location errors.

Designing platform independent mobile apps and services

CERN Document Server

Heckman, Rocky

2016-01-01

This book explains how to help create an innovative and future proof architecture for mobile apps by introducing practical approaches to increase the value and flexibility of their service layers and reduce their delivery time. Designing Platform Independent Mobile Apps and Services begins by describing the mobile computing landscape and previous attempts at cross platform development. Platform independent mobile technologies and development strategies are described in chapter two and three. Communication protocols, details of a recommended five layer architecture, service layers, and the data abstraction layer are also introduced in these chapters. Cross platform languages and multi-client development tools for the User Interface (UI) layer, as well as message processing patterns and message routing of the Service Int rface (SI) layer are explained in chapter four and five. Ways to design the service layer for mobile computing, using Command Query Responsibility Segregation (CQRS) and the Data Abstraction La...

ISOMP: An Instant Service-Orchestration Mobile M2M Platform

Directory of Open Access Journals (Sweden)

Cholhong Im

2016-01-01

Full Text Available Smartphones have greater computing power than ever before, providing convenient applications to improve our lives. In general, people find it difficult to locate suitable applications and implementing new applications often requires professional skills. In this paper, we propose a new service platform that facilitates the implementation of new applications by composing prebuilt components that provide the context information of mobile devices such as location and contacts. Our platform introduces an innovative concept named context collaboration, in which smartphones exchange context information with each other, which in turn is used to deduct useful inferences. The concept is realized by instant orchestration, which assembles some components and implements a composite component. The interactive communication interface helps a mobile device to communicate with other devices using open APIs, such as SOAP and HTTP (REST. The platform also works in heterogeneous environments, for example, between Android and iOS operating systems. Throughout the platform, mobile devices can act as smart M2M machines with context awareness, enabling intelligent tasks on behalf of users. Our platform will open up a new and innovative pathway for both enhanced mobile context awareness and M2M, which is expected to be a fundamental feature of the next generation of mobile devices.

The Western European Mobile Service Market

DEFF Research Database (Denmark)

Henten, Anders; Tadayoni, Reza; Hjarup, Søren

The aim of the paper is to analyse the development of the structure in the Western European mobile services market, based primarily on technological and economic parameters. The focus of the analysis is on the market consolidation process, taking place horizontally, i.e. among the mobile network...... operators, and on the new companies entering the mobile field vertically, delivering, e.g., content and portal services, as convergence with Internet develops....

Designing a New Car Rental Service Using Location-Based Services

OpenAIRE

Dessie, Solomon

2015-01-01

This thesis concentrates on improving the car rental services offered by the case company by introducing location-based services. For many years, the company has conducted a rental business in a similar manner with other car rental companies, and now it is introducing a new service system based on online interaction and location-based services. The outcome of the study is a blueprint for the case company regarding the design of a car rental service using location-based services. This stud...

Increasing Trustworthiness of Face Authentication in Mobile Devices by Modeling Gesture Behavior and Location Using Neural Networks

Directory of Open Access Journals (Sweden)

Blerim Rexha

2018-02-01

Full Text Available Personal mobile devices currently have access to a significant portion of their user’s private sensitive data and are increasingly used for processing mobile payments. Consequently, securing access to these mobile devices is a requirement for securing access to the sensitive data and potentially costly services. Face authentication is one of the promising biometrics-based user authentication mechanisms that has been widely available in this era of mobile computing. With a built-in camera capability on smartphones, tablets, and laptops, face authentication provides an attractive alternative of legacy passwords for its memory-less authentication process, which is so sophisticated that it can unlock the device faster than a fingerprint. Nevertheless, face authentication in the context of smartphones has proven to be vulnerable to attacks. In most current implementations, a sufficiently high-resolution face image displayed on another mobile device will be enough to circumvent security measures and bypass the authentication process. In order to prevent such bypass attacks, gesture recognition together with location is proposed to be additionally modeled. Gestures provide a faster and more convenient method of authentication compared to a complex password. The focus of this paper is to build a secure authentication system with face, location and gesture recognition as components. User gestures and location data are a sequence of time series; therefore, in this paper we propose to use unsupervised learning in the long short-term memory recurrent neural network to actively learn to recognize, group and discriminate user gestures and location. Moreover, a clustering-based technique is also implemented for recognizing gestures and location.

Open Data in Mobile Applications, New Models for Service Information

Directory of Open Access Journals (Sweden)

Manuel GÉRTRUDIX BARRIO

2016-06-01

Full Text Available The combination of open data generated by government and the proliferation of mobile devices enables the creation of new information services and improved delivery of existing ones. Significantly, it allows citizens access to simple,quick and effective way to information. Free applications that use open data provide useful information in real time, tailored to the user experience and / or geographic location. This changes the concept of “service information”. Both the infomediary sector and citizens now have new models of production and dissemination of this type of information. From the theoretical contextualization of aspects such as processes datification of reality, mobile registration of everyday experience, or reinterpretation of the service information, we analyze the role of open data in the public sector in Spain and its application concrete in building apps based on this data sets. The findings indicate that this is a phenomenon that will continue to grow because these applications provide useful and efficient information to decision-making in everyday life.

Database Aspects of Location-Based Services

DEFF Research Database (Denmark)

Jensen, Christian Søndergaard

2004-01-01

in the databases underlying high-quality services. Several integrated representations - which capture different aspects of the same infrastructure - are needed. Further, all other content that can be related to geographical space must be integrated with the infrastructure representations. The chapter describes...... the general concepts underlying one approach to data modeling for location-based services. The chapter also covers techniques that are needed to keep a database for location-based services up to date with the reality it models. As part of this, caching is touched upon briefly. The notion of linear referencing......Adopting a data management perspective on location-based services, this chapter explores central challenges to data management posed by location-based services. Because service users typically travel in, and are constrained to, transportation infrastructures, such structures must be represented...

Mobile contract services: what you need to know.

Science.gov (United States)

Inman, M

2000-01-01

With sufficient planning and ongoing attention to detail, the performance of a mobile imaging service provider can exceed expectations and requirements. The relationship can prove to be mutually agreeable and profitable for many years. But, when contracting mobile services, you cannot spend too much time on initial research and detail. Several scenarios present outsourcing or mobile services as an acceptable alternative to purchase or lease: outdated equipment, novel or under-utilized technologies, the need for incrementally added or temporary service. To find suitable providers, check with peer sources in your area for recommendations; look specifically for facilities that are comparable in size and volume to your facility. Expect that larger volume facilities will rate more favorable schedules or pricing. Obtain and check references. Require mobile service providers to adhere to the same state and federal laws, rules and regulations that govern your facility; receive the assurance of compliance in writing if it is not specifically addressed in the contract. JCAHO requires that any contract service provider be governed by the same requirements as the accredited facility. Several other rules or licensing requirements may also pertain to mobile services. A prevailing reason for outsourcing imaging services is high equipment costs that cannot be justified with current volume projections. However, equipment quality should not be compromised; it must meet your needs and be in good repair. The mobile service provider you choose should be an extension of your department; quality standards must exist unilaterally. The set rule for assessing mobile service fees is that there is no set rule. There are many ways to negotiate the fee schedule so that it meets the needs of both parties. An effective marketing campaign lets physicians and patients know what you have available. Work with the mobile service provider to plan an initial announcement or open house. The mobile

Mobile service and application development in a mobility perspective MoMuC 2003

DEFF Research Database (Denmark)

Saugstrup, Dan; Henten, Anders

2003-01-01

This paper is based on a general research approach, emphasizing important aspects in relation to developing more user oriented mobile services and applications. As a staring point, Scandinavian research within the field of social science concerning mobility is described and discussed. In addition...... to this a preliminary framework regarding the implications of mobility on the use and development of mobile services and applications is proposed. The framework is centered on four aspects; geographical, time-related, contextual and organizational aspects and their implications on choice of access technology...... in relation to developing more user oriented mobile services and applications....

Location Privacy for Mobile Crowd Sensing through Population Mapping.

Science.gov (United States)

Shin, Minho; Cornelius, Cory; Kapadia, Apu; Triandopoulos, Nikos; Kotz, David

2015-06-29

Opportunistic sensing allows applications to "task" mobile devices to measure context in a target region. For example, one could leverage sensor-equipped vehicles to measure traffic or pollution levels on a particular street or users' mobile phones to locate (Bluetooth-enabled) objects in their vicinity. In most proposed applications, context reports include the time and location of the event, putting the privacy of users at increased risk: even if identifying information has been removed from a report, the accompanying time and location can reveal sufficient information to de-anonymize the user whose device sent the report. We propose and evaluate a novel spatiotemporal blurring mechanism based on tessellation and clustering to protect users' privacy against the system while reporting context. Our technique employs a notion of probabilistic k-anonymity; it allows users to perform local blurring of reports efficiently without an online anonymization server before the data are sent to the system. The proposed scheme can control the degree of certainty in location privacy and the quality of reports through a system parameter. We outline the architecture and security properties of our approach and evaluate our tessellation and clustering algorithm against real mobility traces.

Location Privacy for Mobile Crowd Sensing through Population Mapping

Directory of Open Access Journals (Sweden)

Minho Shin

2015-06-01

Full Text Available Opportunistic sensing allows applications to “task” mobile devices to measure context in a target region. For example, one could leverage sensor-equipped vehicles to measure traffic or pollution levels on a particular street or users’ mobile phones to locate (Bluetooth-enabled objects in their vicinity. In most proposed applications, context reports include the time and location of the event, putting the privacy of users at increased risk: even if identifying information has been removed from a report, the accompanying time and location can reveal sufficient information to de-anonymize the user whose device sent the report. We propose and evaluate a novel spatiotemporal blurring mechanism based on tessellation and clustering to protect users’ privacy against the system while reporting context. Our technique employs a notion of probabilistic k-anonymity; it allows users to perform local blurring of reports efficiently without an online anonymization server before the data are sent to the system. The proposed scheme can control the degree of certainty in location privacy and the quality of reports through a system parameter. We outline the architecture and security properties of our approach and evaluate our tessellation and clustering algorithm against real mobility traces.

USE OF MOBILE TECHNOLOGY IN BANKING SERVICES

Directory of Open Access Journals (Sweden)

ALIN ISAC

2013-12-01

Full Text Available Technology and applications of mobile phones offer many opportunities for businesses, they also presenting a continuous development and new challenges. Although this service is currently viewed with reluctance by customers, banks need to overcome this drawback and understand how this service can be combined with other alternative channels such as social media, to create value for customers. In this paper I presented information about present and perspectives in mobile applications industry, what can a mobile application do in banking, banking mobile applications in Romania, mobile banking applications worldwide.

Video quality measure for mobile IPTV service

Science.gov (United States)

Kim, Wonjun; Kim, Changick

2008-08-01

Mobile IPTV is a multimedia service based on wireless networks with interactivity and mobility. Under mobile IPTV scenarios, people can watch various contents whenever they want and even deliver their request to service providers through the network. However, the frequent change of the wireless channel bandwidth may hinder the quality of service. In this paper, we propose an objective video quality measure (VQM) for mobile IPTV services, which is focused on the jitter measurement. Jitter is the result of frame repetition during the delay and one of the most severe impairments in the video transmission via mobile channels. We first employ YUV color space to compute the duration and occurrences of jitter and the motion activity. Then the VQM is modeled by the combination of these three factors and the result of subjective assessment. Since the proposed VQM is based on no-reference (NR) model, it can be applied for real-time applications. Experimental results show that the proposed VQM highly correlates to subjective evaluation.

Toward a North American standard for mobile data services

Science.gov (United States)

Dean, Richard A.; Levesque, Allen H.

1991-09-01

The rapid introduction of digital mobile communications systems is an important part of the emerging digital communications scene. These developments pose both a potential problem and a challenge. On one hand, these separate market driven developments can result in an uncontrolled mixture of analog and digital links which inhibit data modem services across the mobile/Public Switched network (PSTN). On the other hand, the near coincidence of schedules for development of some of these systems, i.e., Digital Cellular, Mobile Satellite, Land Mobile Radio, and ISDN, provides an opportunity to address interoperability problems by defining interfaces, control, and service standards that are compatible among these new services. In this paper we address the problem of providing data services interoperation between mobile terminals and data devices on the PSTN. The expected data services include G3 Fax, asynchronous data, and the government's STU-3 secure voice system, and future data services such as ISDN. We address a common architecture and a limited set of issues that are key to interoperable mobile data services. We believe that common mobile data standards will both improve the quality of data service and simplify the systems for manufacturers, data users, and service providers.

Designing for social play in co-located mobile games

DEFF Research Database (Denmark)

Goddard, William; Garner, Jayden; Jensen, Mads Møller

2016-01-01

In this paper we explore how mobile devices and co-location in mobile contexts contribute social play in game design, addressing the limited understanding of social interactivity in mobile games. Using the Mechanics-Dynamics-Aesthetics (MDA) framework, we code four games illustrating effective use...... of mobile, social, and colocated elements. Subsequently, we analyse and discuss this data to identify generalisability in these games. In our discussion we identify how these findings address game design problems of designing collaborative games. Furthermore, we contribute to theory of designing for social...

Mobile Phone Services in Makkah, Saudi Arabia

OpenAIRE

Mohammed T. Simsim

2009-01-01

This paper discusses telecominication market developments in Saudi Arabia. Empirical research was carried in the holy city of Makkah to study the customer's preference for mobile cellular service and the factor influencing their subscription of the mobile phone service. Results indicate that the financial factor sicnificantly influence the customer's selection of the service provider.

Service fusion in mobile contexts

OpenAIRE

Shen, J. M.; O'Grady, Michael J.; O'Hare, G. M. P. (Greg M. P.)

2010-01-01

Service provision for mobile users poses several challenges for those managing enterprise information systems. Some of these are ubiquitous, for example, privacy and security. Others give rise to integration and interoperability issues. The agent paradigm, though offering potential in fixed networked scenarios, has not been seriously considered as a mechanism for incorporating mobile clients, primarily to their computational intractability on mobile devices. However, recent developments in ag...

A mobile school-based HCT service - is it youth friendly?

Science.gov (United States)

Lawrence, Estelle; Struthers, Patricia; Van Hove, Geert

2016-12-01

Despite an increase in HIV Counselling and Testing (HCT), few young people have been tested. It has been suggested that they do not test because formal health services (where HCT is provided) are often not youth friendly. The World Health Organisation describes a youth-friendly health service (YFHS) as one which is accessible, equitable, acceptable, appropriate, and effective. A mobile school-based model has been implemented by a non-governmental organisation in Cape Town in an attempt to make HCT more youth friendly and accessible to young people. The objective of this study was to explore whether this mobile school-based HCT service is youth friendly. The study was descriptive, using three qualitative data collection methods: observation of the HCT site at two secondary schools; interviews with six service providers; and direct observation of 21 HCT counselling sessions. The mobile school-based HCT service fulfilled some of the criteria for being a YFHS. The service was equitable in that all students, irrespective of race, gender, age, or socio-economic status, were free to use the service. It was accessible in terms of location and cost, but students were not well informed to make decisions about using the service. The service was acceptable in that confidentiality was guaranteed and the service providers were friendly and non-judgemental, but it was not considered acceptable in that there was limited privacy. The service was appropriate in that HCT is recommended as an intervention for decreasing the transmission of HIV, based on evidence and expert opinion; however, in this case, HCT was provided as a stand-alone service rather than part of a full package of services. Moreover, studies have suggested that young people want to know their HIV status. The service was ineffective in that it identified students who are HIV positive; however, these students were not assisted to access care. Providing HCT in the school setting may make HCT more accessible for

Mobile information and communication in the hospital outpatient service.

Science.gov (United States)

Jen, Wen-Yuan; Chao, Chia-Chen; Hung, Ming-Chien; Li, Yu-Chuan; Chi, Y P

2007-08-01

Most healthcare providers provide mobile service for their medical staff; however, few healthcare providers provide mobile service as part of their outpatient service. The mobile outpatient service system (MOSS) focuses on illness treatment, illness prevention and patient relation management for outpatient service users. Initiated in a local hospital in Taiwan, the MOSS pilot project was developed to improve outpatient service quality and pursue higher patient safety. This study focuses on the development of the MOSS. The workflow, architecture and target users of the MOSS are delineated. In addition, there were two surveys conducted as part of this study. After a focus group of medical staff identified areas in which outpatient services might be improved by the MOSS, the first survey was administered to outpatients to confirm the focus group's intuitions. The second administration of the survey explored outpatient satisfaction after they used the MOSS service. With regard to outpatient attitudes, about 93% of participants agreed that the mobile outpatient service improved outpatient service quality. In the area of outpatient satisfaction, about 89% of participants indicated they were satisfied with the mobile outpatient service. Supported by our study finding, we propose that more diverse mobile outpatient services can be provided in the future.

Where am I? Location archetype keyword extraction from urban mobility patterns.

Science.gov (United States)

Kostakos, Vassilis; Juntunen, Tomi; Goncalves, Jorge; Hosio, Simo; Ojala, Timo

2013-01-01

Can online behaviour be used as a proxy for studying urban mobility? The increasing availability of digital mobility traces has provided new insights into collective human behaviour. Mobility datasets have been shown to be an accurate proxy for daily behaviour and social patterns, and behavioural data from Twitter has been used to predict real world phenomena such as cinema ticket sale volumes, stock prices, and disease outbreaks. In this paper we correlate city-scale urban traffic patterns with online search trends to uncover keywords describing the pedestrian traffic location. By analysing a 3-year mobility dataset we show that our approach, called Location Archetype Keyword Extraction (LAKE), is capable of uncovering semantically relevant keywords for describing a location. Our findings demonstrate an overarching relationship between online and offline collective behaviour, and allow for advancing analysis of community-level behaviour by using online search keywords as a practical behaviour proxy.

Facilitating mobile service provisioning in IP Multimedia Subsystem (IMS) using service oriented architecture

NARCIS (Netherlands)

Radovanovic, I.; Ray, A.; Lukkien, J.J.; Chaudron, M.R.V.; Krämer, B.J.; Lin, K.J.; Narasimhan, P.

2007-01-01

This paper presents an extension of the IMS software architecture using a service orientation, which provides flexibility of mobile service provisioning. The suggested extension facilitates composition of new mobile services in run-time based on the existing services and enables the end users to

Generating ideas for new mobile TV services - Accepting and socializing mobile television

DEFF Research Database (Denmark)

Sørensen, L.; Nicolajsen, Hanne Westh

2010-01-01

Mobile TV is still in its infancy in respect to identifying new services/content, which deploy the technology convergence of broadcasting, Internet and radio while satisfying the user with respect to interactivity, sociability and content, and at the same time fit the small screen of a mobile phone....... This paper reports on a semi-field trial performed with a group of young, IT literate users provided with handheld devices and the possibility of watching mobile TV as a basis for creation of ideas for more advanced services. The results shows that this group of users looks for personalized services...

iParking: an intelligent indoor location-based smartphone parking service.

Science.gov (United States)

Liu, Jingbin; Chen, Ruizhi; Chen, Yuwei; Pei, Ling; Chen, Liang

2012-10-31

Indoor positioning technologies have been widely studied with a number of solutions being proposed, yet substantial applications and services are still fairly primitive. Taking advantage of the emerging concept of the connected car, the popularity of smartphones and mobile Internet, and precise indoor locations, this study presents the development of a novel intelligent parking service called iParking. With the iParking service, multiple parties such as users, parking facilities and service providers are connected through Internet in a distributed architecture. The client software is a light-weight application running on a smartphone, and it works essentially based on a precise indoor positioning solution, which fuses Wireless Local Area Network (WLAN) signals and the measurements of the built-in sensors of the smartphones. The positioning accuracy, availability and reliability of the proposed positioning solution are adequate for facilitating the novel parking service. An iParking prototype has been developed and demonstrated in a real parking environment at a shopping mall. The demonstration showed how the iParking service could improve the parking experience and increase the efficiency of parking facilities. The iParking is a novel service in terms of cost- and energy-efficient solution.

iParking: An Intelligent Indoor Location-Based Smartphone Parking Service

Directory of Open Access Journals (Sweden)

Liang Chen

2012-10-01

Full Text Available Indoor positioning technologies have been widely studied with a number of solutions being proposed, yet substantial applications and services are still fairly primitive. Taking advantage of the emerging concept of the connected car, the popularity of smartphones and mobile Internet, and precise indoor locations, this study presents the development of a novel intelligent parking service called iParking. With the iParking service, multiple parties such as users, parking facilities and service providers are connected through Internet in a distributed architecture. The client software is a light-weight application running on a smartphone, and it works essentially based on a precise indoor positioning solution, which fuses Wireless Local Area Network (WLAN signals and the measurements of the built-in sensors of the smartphones. The positioning accuracy, availability and reliability of the proposed positioning solution are adequate for facilitating the novel parking service. An iParking prototype has been developed and demonstrated in a real parking environment at a shopping mall. The demonstration showed how the iParking service could improve the parking experience and increase the efficiency of parking facilities. The iParking is a novel service in terms of cost- and energy-efficient solution.

iParking: An Intelligent Indoor Location-Based Smartphone Parking Service

Science.gov (United States)

Liu, Jingbin; Chen, Ruizhi; Chen, Yuwei; Pei, Ling; Chen, Liang

2012-01-01

Indoor positioning technologies have been widely studied with a number of solutions being proposed, yet substantial applications and services are still fairly primitive. Taking advantage of the emerging concept of the connected car, the popularity of smartphones and mobile Internet, and precise indoor locations, this study presents the development of a novel intelligent parking service called iParking. With the iParking service, multiple parties such as users, parking facilities and service providers are connected through Internet in a distributed architecture. The client software is a light-weight application running on a smartphone, and it works essentially based on a precise indoor positioning solution, which fuses Wireless Local Area Network (WLAN) signals and the measurements of the built-in sensors of the smartphones. The positioning accuracy, availability and reliability of the proposed positioning solution are adequate for facilitating the novel parking service. An iParking prototype has been developed and demonstrated in a real parking environment at a shopping mall. The demonstration showed how the iParking service could improve the parking experience and increase the efficiency of parking facilities. The iParking is a novel service in terms of cost- and energy-efficient solution. PMID:23202179

An Adaptive Approach to Locating Mobile HIV Testing Services.

Science.gov (United States)

Gonsalves, Gregg S; Crawford, Forrest W; Cleary, Paul D; Kaplan, Edward H; Paltiel, A David

2018-02-01

Public health agencies suggest targeting "hotspots" to identify individuals with undetected HIV infection. However, definitions of hotspots vary. Little is known about how best to target mobile HIV testing resources. We conducted a computer-based tournament to compare the yield of 4 algorithms for mobile HIV testing. Over 180 rounds of play, the algorithms selected 1 of 3 hypothetical zones, each with unknown prevalence of undiagnosed HIV, in which to conduct a fixed number of HIV tests. The algorithms were: 1) Thompson Sampling, an adaptive Bayesian search strategy; 2) Explore-then-Exploit, a strategy that initially draws comparable samples from all zones and then devotes all remaining rounds of play to HIV testing in whichever zone produced the highest observed yield; 3) Retrospection, a strategy using only base prevalence information; and; 4) Clairvoyance, a benchmarking strategy that employs perfect information about HIV prevalence in each zone. Over 250 tournament runs, Thompson Sampling outperformed Explore-then-Exploit 66% of the time, identifying 15% more cases. Thompson Sampling's superiority persisted in a variety of circumstances examined in the sensitivity analysis. Case detection rates using Thompson Sampling were, on average, within 90% of the benchmark established by Clairvoyance. Retrospection was consistently the poorest performer. We did not consider either selection bias (i.e., the correlation between infection status and the decision to obtain an HIV test) or the costs of relocation to another zone from one round of play to the next. Adaptive methods like Thompson Sampling for mobile HIV testing are practical and effective, and may have advantages over other commonly used strategies.

Generating Ideas for New Mobile TV Services

DEFF Research Database (Denmark)

Sørensen, Lene Tolstrup; Nicolajsen, Hanne Westh

2010-01-01

Mobile TV is still in its infancy in respect to identifying new services/content, which deploy the technology convergence of broadcasting, Internet and radio while satisfying the user with respect to interactivity, sociability and content, and at the same time fit the small screen of a mobile phone....... This paper reports on a semi-field trial performed with a group of young, IT literate users provided with handheld devices and the possibility of watching mobile TV as a basis for creation of ideas for more advanced services. The results shows that this group of users looks for personalized services...

Where am I? Location archetype keyword extraction from urban mobility patterns.

Directory of Open Access Journals (Sweden)

Vassilis Kostakos

Full Text Available Can online behaviour be used as a proxy for studying urban mobility? The increasing availability of digital mobility traces has provided new insights into collective human behaviour. Mobility datasets have been shown to be an accurate proxy for daily behaviour and social patterns, and behavioural data from Twitter has been used to predict real world phenomena such as cinema ticket sale volumes, stock prices, and disease outbreaks. In this paper we correlate city-scale urban traffic patterns with online search trends to uncover keywords describing the pedestrian traffic location. By analysing a 3-year mobility dataset we show that our approach, called Location Archetype Keyword Extraction (LAKE, is capable of uncovering semantically relevant keywords for describing a location. Our findings demonstrate an overarching relationship between online and offline collective behaviour, and allow for advancing analysis of community-level behaviour by using online search keywords as a practical behaviour proxy.

Viseu Mobile: A location based Augmented Reality tour guide for mobile devices

Directory of Open Access Journals (Sweden)

M.L. Martins

2015-11-01

Full Text Available This article reports on the project "Viseu na Palma da Mão", which is based on a Augmented Reality app for mobile devices, whose main purpose is to maximise the tourists’ experience when visiting the town of Viseu. The paper starts by presenting a reflection on Augmented Reality and its potential and applications, with a special emphasis on the tourism industry. The increasing possibility to access the Internet anytime, anywhere, together with the unprecedented growth of mobile device penetration has boosted the development of specific applications that seek to respond to the increasing demands of tourists. It is on this premise that the app Viseu Mobile emerges, seeking to enhance the constant use of mobile devices, and making them act as a personal tour guide, based on location based information. The different stages of development and different features of the application are also explained

Bundled mobile services : The impact on consumers' intention to adopt

NARCIS (Netherlands)

Teerling, Marije L.; Haaker, Timber; De Vos, Henny; Kleijnen, M.H.P.

2009-01-01

Mobile services (m-services) are different from traditional services in that the use of these services takes place through a mobile device and as such can be used any time and any place. Even though consumers increasingly use their mobile phones [22], adoption of m-services is still lingering. In

HIV/AIDS testing sites and locator services

Data.gov (United States)

U.S. Department of Health & Human Services — The HIV Testing Sites & Care Services Locator is a first-of-its-kind, location-based search tool that allows you to search for testing services, housing...

The Mobile Reference Service: a case study of an onsite reference service program at the School of Public Health.

Science.gov (United States)

Tao, Donghua; McCarthy, Patrick G; Krieger, Mary M; Webb, Annie B

2009-01-01

The School of Public Health at Saint Louis University is located at a greater distance from the library than other programs on the main medical center campus. Physical distance diminishes the ease of access to direct reference services for public health users. To bridge the gap, the library developed the Mobile Reference Service to deliver on-site information assistance with regular office hours each week. Between September 2006 and April 2007, a total of 57 in-depth reference transactions took place over 25 weeks, averaging 2 transactions per week in a 2-hour period. Overall reference transactions from public health users went up 28%, while liaison contacts with public health users doubled compared to the same period the year before. The Mobile Reference Service program has improved library support for research and scholarship, cultivated and strengthened liaison relationships, and enhanced marketing and delivery of library resources and services to the Saint Louis University School of Public Health.

The Mobile Reference Service: a case study of an onsite reference service program at the school of public health*

Science.gov (United States)

Tao, Donghua; McCarthy, Patrick G.; Krieger, Mary M.; Webb, Annie B.

2009-01-01

The School of Public Health at Saint Louis University is located at a greater distance from the library than other programs on the main medical center campus. Physical distance diminishes the ease of access to direct reference services for public health users. To bridge the gap, the library developed the Mobile Reference Service to deliver onsite information assistance with regular office hours each week. Between September 2006 and April 2007, a total of 57 in-depth reference transactions took place over 25 weeks, averaging 2 transactions per week in a 2-hour period. Overall reference transactions from public health users went up 28%, while liaison contacts with public health users doubled compared to the same period the year before. The Mobile Reference Service program has improved library support for research and scholarship, cultivated and strengthened liaison relationships, and enhanced marketing and delivery of library resources and services to the Saint Louis University School of Public Health. PMID:19159004

CULTURAL INFLUENCES ON PRE-PAY MOBILE TELECOMMUNICATIONS SERVICES USERS

Directory of Open Access Journals (Sweden)

Georgeta-Madalina MEGHISAN

2015-06-01

Full Text Available Purpose: The purpose of this research paper is to identify the preferences of the pre-pay mobile telecommunications services young users from Romania. Approach/ methodology: The analysis of the pre-pay mobile telecommunications services was made using statistical functions: descriptive statistics, t test, correlation and factor analysis. Results: According to the analysis made, we could underline the habits of usage from the part of pre-pay mobile telecommunications services consumers. Originality: The paper drew an objective analysis on the pre-pay mobile telecommunications services from the perspective of young consumers.

Improving Educational Outcomes by Providing Educational Services through Mobile Technology

Directory of Open Access Journals (Sweden)

Hosam Farouk El-Sofany

2013-01-01

Full Text Available The use of Computers, Networks, and Internet has successfully enabled educational institutions to provide their students and instructors with various online educational services. With the recent developments in M-learning and mobile technology, further possibilities are emerging to provide such services through mobile devices such as mobile phones and PDAs. By providing the educational services using wireless and mobile technologies, the educational institutions can potentially bring great convenience to those off-campus students who do not always have time to find Internet enabled computers to get the important educational information from their academic institutions. With the mobile or M-educational services, both the students and the instructors can access the services anytime and anywhere they want. This paper discusses those M-educational services that can be moved to the mobile platform and then presents the system prototype and architecture that integrate these services into the mobile technology platform. The paper will conclude with a description of the formative evaluation of the system prototype.

A privacy-preserving framework for outsourcing location-based services to the cloud

OpenAIRE

Zhu, Xiaojie; Ayday, Erman; Vitenberg, Roman

2018-01-01

Thanks to the popularity of mobile devices a large number of location-based services (LBS) have emerged. While a large number of privacy-preserving solutions for LBS have been proposed, most of these solutions do not consider the fact that LBS are typically cloud-based nowadays. Outsourcing data and computation to the cloud raises a number of significant challenges related to data confidentiality, user identity and query privacy, fine-grain access control, and query expressiveness. In this wo...

Location-quality-aware policy optimisation for relay selection in mobile networks

DEFF Research Database (Denmark)

Nielsen, Jimmy Jessen; Olsen, Rasmus Løvenstein; Madsen, Tatiana Kozlova

2016-01-01

for resulting performance of such network optimizations. In mobile scenarios, the required information collection and forwarding causes delays that will additionally affect the reliability of the collected information and hence will influence the performance of the relay selection method. This paper analyzes...... the joint influence of these two factors in the decision process for the example of a mobile location-based relay selection approach using a continuous time Markov chain model. Efficient algorithms are developed based on this model to obtain optimal relay policies under consideration of localization errors....... Numerical results show how information update rates, forwarding delays, and location estimation errors affect these optimal policies and allow to conclude on the required accuracy of location-based systems for such mobile relay selection scenarios. A measurement-based indoor scenario with more complex...

Costs of a school-based dental mobile service in South Africa.

Science.gov (United States)

Molete, M P; Chola, L; Hofman, K J

2016-10-19

The burden of untreated tooth decay remains high and oral healthcare utilisation is low for the majority of children in South Africa. There is need for alternative methods of improving access to low cost oral healthcare. The mobile dental unit of the University of the Witwatersrand (Wits) has been operational for over 25 years, providing alternative oral healthcare to children and adults who otherwise would not have access. The aim of this study was to conduct a cost-analysis of a school based oral healthcare program in the Wits mobile dental unit. The objectives were to estimate the general costs of the school based program, costs of oral healthcare per patient and the economic implications of providing services at scale. In 2012, the Wits mobile dental unit embarked on a 5 month project to provide oral healthcare in four schools located around Johannesburg. Cost and service use data were retrospectively collected from the program records for the cost analysis, which was undertaken from a provider perspective. The costs considered included both financial and economic costs. Capital costs were annualised and discounted at 6 %. One way sensitivity tests were conducted for uncertain parameters. The total economic costs were R813.701 (US$76,048). The cost of screening and treatment per patient were R331 (US$31) and R743 (US$69) respectively. Furthermore, fissure sealants cost the least out of the treatments provided. The sensitivity analysis indicated that the Wits mobile dental unit was cost efficient at 25 % allocation of staff time and that a Dental Therapy led service could save costs by 9.1 %. Expanding the services to a wider population of children and utilising Dental Therapists as key personnel could improve the efficiency of mobile dental healthcare provision.

Key Factors Influencing Customer Satisfaction in Korea's Mobile Service Sector

OpenAIRE

JAE YOUNG KIM; HYUNG SEOK LEE

2013-01-01

Advances in wireless technology have expanded the existing internet environment and accelerated the rapid development of mobile service. Many previous studies were conducted on users’ needs and satisfaction prior to the expansion of the mobile service. Thus, the impact of mobile service factors on user satisfaction has important implications for both academics and practitioners. This study investigates the factors affecting user satisfaction related to mobile service. First, this study extrac...

Perception Analysis of Desktop and Mobile Service Website

Directory of Open Access Journals (Sweden)

Rizqiyatul Khoiriyah

2016-12-01

Full Text Available The research was conducted as a qualitative study of the website to deeper explore and examine the analysis of user perception of desktop and mobile website services. This research reviewed about user perception of desktop and mobile service website used by using qualitative methods adapted to WebQual and User Experience approach. This qualitative research refered to the theoretical reference written by Creswell (2014. The expected outcome is to know the user perceptions of the available services and information in the website along with the possibility of desktop and mobile gap arising from differences in the two services. These results can be used as a service model on the website of the user experience.

A mobile school-based HCT service – is it youth friendly?

Directory of Open Access Journals (Sweden)

Estelle Lawrence

2016-01-01

Full Text Available Background: Despite an increase in HIV Counselling and Testing (HCT, few young people have been tested. It has been suggested that they do not test because formal health services (where HCT is provided are often not youth friendly. The World Health Organisation describes a youth-friendly health service (YFHS as one which is accessible, equitable, acceptable, appropriate, and effective. A mobile school-based model has been implemented by a non-governmental organisation in Cape Town in an attempt to make HCT more youth friendly and accessible to young people. The objective of this study was to explore whether this mobile school-based HCT service is youth friendly. Methods: The study was descriptive, using three qualitative data collection methods: observation of the HCT site at two secondary schools; interviews with six service providers; and direct observation of 21 HCT counselling sessions. Key Results: The mobile school-based HCT service fulfilled some of the criteria for being a YFHS. The service was equitable in that all students, irrespective of race, gender, age, or socio-economic status, were free to use the service. It was accessible in terms of location and cost, but students were not well informed to make decisions about using the service. The service was acceptable in that confidentiality was guaranteed and the service providers were friendly and non-judgemental, but it was not considered acceptable in that there was limited privacy. The service was appropriate in that HCT is recommended as an intervention for decreasing the transmission of HIV, based on evidence and expert opinion; however, in this case, HCT was provided as a stand-alone service rather than part of a full package of services. Moreover, studies have suggested that young people want to know their HIV status. The service was ineffective in that it identified students who are HIV positive; however, these students were not assisted to access care. Conclusion: Providing HCT

Sistem Aplikasi Location Based Service untuk Pengembangan Kota Cerdas

Directory of Open Access Journals (Sweden)

Agus Sukerta

2015-06-01

Full Text Available One way to accomplish the smart city is by utilizing application that build interaction between society and the government while providing the benefits to all stakeholders. This application systems should be reached easily and relatively cheap for the society, and they can be used anytime, anywhere. This paper describes how to develop applications that implement the Location Based Services (LBS for Development of Smart City to build the Public Complaints Service Application System (PCSAS. The PCSAS was designed, built and then tested. This PCSAS was built with Web-based Client-Server architecture. On the client side using a web interface or mobile with Android operating system. This application uses a valid e-mail as a condition of enrollment, while accommodating Social Media interface particularly Facebook and Twitter to get into the system. The result of the use of this application system was an interaction between the community and the government in handling public complaints. Location information problems in the field may soon be known precisely by coordinates, so that the handling can be done quickly and with sufficient preparation equipment based on the information of the real conditions in the field in the form of photos and videos that are included in the complaint.

Consuming Web Services on Mobile Platforms

Directory of Open Access Journals (Sweden)

Alin COBARZAN

2010-01-01

Full Text Available Web services are an emerging technology that provides interoperability between applications running in different platforms. The Web services technology provide the best approach to Service Oriented Architecture envision of component collaboration for better business re-quirements fulfilment in large enterprise systems. The challenges in implementing Web services consuming clients for low-resources mobile devices connected through unreliable wireless connections are delimited. The paper also presents a communication architecture that moves the heavy load of XML-based messaging system from the mobile clients to an external middleware component. The middleware component will act like a gateway that lightly com-municates with the device in a client-server manner over a fast binary protocol and at the same time takes the responsibility of solving the request to the Web service.

Mobile Urban Drama - Setting the Stage with Location Based Technologies

DEFF Research Database (Denmark)

Hansen, Frank Allan; Kortbek, Karen Johanne; Grønbæk, Kaj

2008-01-01

This paper introduces the novel concept of location-based Mobile Urban Dramas. In a Mobile Urban Drama the user become the main character in a play where actors’ voices appear in the mobile phone headset linked to the physical setting in the city as the stage for the drama. The paper describes...... the dramaturgical concept and introduces a software framework supporting drama writers in developing such Mobile Urban Dramas. Experiences with use of the framework are discussed with successful examples of real dramas that have been developed and performed by a Danish theatre group, Katapult....

Layered Location-Based Security Mechanism for Mobile Sensor Networks: Moving Security Areas

Directory of Open Access Journals (Sweden)

Ze Wang

2015-09-01

Full Text Available Network security is one of the most important issues in mobile sensor networks (MSNs. Networks are particularly vulnerable in hostile environments because of many factors, such as uncertain mobility, limitations on computation, and the need for storage in mobile nodes. Though some location-based security mechanisms can resist some malicious attacks, they are only suitable for static networks and may sometimes require large amounts of storage. To solve these problems, using location information, which is one of the most important properties in outdoor wireless networks, a security mechanism called a moving security area (MSA is proposed to resist malicious attacks by using mobile nodes’ dynamic location-based keys. The security mechanism is layered by performing different detection schemes inside or outside the MSA. The location-based private keys will be updated only at the appropriate moments, considering the balance of cost and security performance. By transferring parts of the detection tasks from ordinary nodes to the sink node, the memory requirements are distributed to different entities to save limited energy.

Layered Location-Based Security Mechanism for Mobile Sensor Networks: Moving Security Areas.

Science.gov (United States)

Wang, Ze; Zhang, Haijuan; Wu, Luqiang; Zhou, Chang

2015-09-25

Network security is one of the most important issues in mobile sensor networks (MSNs). Networks are particularly vulnerable in hostile environments because of many factors, such as uncertain mobility, limitations on computation, and the need for storage in mobile nodes. Though some location-based security mechanisms can resist some malicious attacks, they are only suitable for static networks and may sometimes require large amounts of storage. To solve these problems, using location information, which is one of the most important properties in outdoor wireless networks, a security mechanism called a moving security area (MSA) is proposed to resist malicious attacks by using mobile nodes' dynamic location-based keys. The security mechanism is layered by performing different detection schemes inside or outside the MSA. The location-based private keys will be updated only at the appropriate moments, considering the balance of cost and security performance. By transferring parts of the detection tasks from ordinary nodes to the sink node, the memory requirements are distributed to different entities to save limited energy.

Inmarsat and personal mobile satellite services

Science.gov (United States)

McDougal, Patrick; Barendse, Victor

Personal communications - mobile satellite services (PC-MSS) hold much promise as a profitable business opportunity for a number of interested operators and manufacturers. What will be their impact on the overall mobile communications landscape, and what role will they play in the drive towards the universal personal communicator? It is the thesis of this paper that PC-MSS can provide one of the critical enabling technologies to allow a more rapid, global assimilation of personal mobile communications. Terrestrial mobile communications are local by definition, both in terms of service reach and regulatory oversight. It is estimated that cellular, and other forms of terrestrial mobile communications, will cover over 50% of the world's population, but only 15% of the land mass area by the year 2000. PC-MSS will allow 'cellular extension' to interested users in the uncovered parts of the world. The market opportunity is established and technical solutions are available. However 'user cooperation' will be required and cross mapping of market needs to the technology solutions is the key to financially viable solutions. The potential political and regulatory hurdles are daunting. Inmarsat, as the existing global MSS partnership, is already introducing PC-MSS products and services in the 1990s. The widespread use of briefcase satphones (Inm-M), laptop-sized data terminals (Inm-C), and pocket satpagers (Inm-paging) will break new ground in reshaping the international regulatory context of mobile communications, and in initiating the optimal public switched network integration necessary for global interconnect. It is suggested that this evolutionary approach, by means of international consensus-building within a global partnership of operators, is an effective and proven method to ensure both a sufficient financial return for investors, and fair and equitable access of these services for all countries and users.

Smart Location Database - Service

Data.gov (United States)

U.S. Environmental Protection Agency — The Smart Location Database (SLD) summarizes over 80 demographic, built environment, transit service, and destination accessibility attributes for every census block...

Modeling Consumer Adoption and Usage of Value-Added Mobile Services

NARCIS (Netherlands)

R. Prins (Remco)

2008-01-01

textabstractIn recent years, the mobile telecommunications market has been very dynamic in terms of innovations. Mobile service providers continuously invest in new technologies and introduce many new mobile services for consumers, such as MMS and web services. However, adoption rates are often not

OLBS: Offline location based services

OpenAIRE

Coelho, P; Ana Aguiar; João Correia Lopes

2011-01-01

Most existing location-based services rely on ubiquitous connectivity to deliver location-based contents to the users. However, connectivity is not available anywhere at anytime even in urban centres. Underground, indoors, remote areas, and foreign countries are examples situations where users commonly do not have guaranteed connectivity but could profit from location-based contents. In this work, we propose an open platform for publishing, distributing and maintaining location-based contents...

Data Modeling for Mobile Services in the Real World

DEFF Research Database (Denmark)

Jensen, Christian Søndergaard; Pedersen, Torben Bach; Speicys, L.

2003-01-01

Research contributions on data modeling, data structures, query processing, and indexing for mobile services may have an impact in the longer term, but each contribution typically offers an isolated solution to one small part of the practical problem of delivering mobile services in the real world....... In contrast, this paper describes holistic concepts and techniques for mobile data modeling that are readily applicable in practice. Focus is on services to be delivered to mobile users, such as route guidance, point-of-interest search, road pricing, parking payment, traffic monitoring, etc. While geo...

BLE-BASED ACCURATE INDOOR LOCATION TRACKING FOR HOME AND OFFICE

OpenAIRE

Joonghong Park; Jaehoon Kim; Sungwon Kang

2015-01-01

Nowadays the use of smart mobile devices and the accompanying needs for emerging services relying on indoor location-based services (LBS) for mobile devices are rapidly increasing. For more accurate location tracking using Bluetooth Low Energy (BLE), this paper proposes a novel trilateration-based algorithm and presents experimental results that demonstrate its effectiveness.

Mobile Opportunities and Applications for E-service Innovations

DEFF Research Database (Denmark)

Scupola, Ada

Mobile technology continues to shape our society, delivering information and knowledge right to our finger tips. It is only fitting that these advancements and opportunities are applied to the area of electronic services. Mobile Opportunities and Applications for E-Service Innovations brings...

SMS service from your GSM mobile phone

CERN Multimedia

IT Department

2009-01-01

The exchange of SMS (Short Message Service) messages is a very popular application of GSM mobile services. However, the use of the application with a CERN subscription is subject to certain conditions: First of all, only text messages can be sent and received with a CERN GSM subscription. These messages are limited to 160 characters. MMS (Multimedia Message Service) messages, which consist in attaching pictures, videos or sounds to a message, are not supported by the current CERN mobile network configuration. In addition, value-added SMS or SMS premium messages (e.g. messages to short numbers involving extra charges) are not permitted. Before sending a message, you must first record the number of the message centre (+41765980000) in your mobile. In principle, this configuration setting is automatically applied to all standard GSM mobile phones when they are issued. To send a message to another GSM user, you must of course enter his or her GSM number. This number must be e...

Value Added Services and Adoption of Mobile Payments

DEFF Research Database (Denmark)

Augsburg, Christel; Hedman, Jonas

2014-01-01

In this paper, we investigate the role of Value Added Services (VAS) in consumers’ adoption of mobile payments. VAS are supplementary digital services offered in connection with mobile payments; in this study exemplified by receipts, loyalty cards, and coupons. A research model is derived from...... that intention to adopt mobile payments increases as VAS are introduced and that this increase comes from a positive change in Perceived Usefulness, compatibility, and Convenience....

The role of the restructured Mobile Remote Service Base System (MBS) in support of Space Station maintenance and servicing

Science.gov (United States)

Darlington, T.; Krukewich, K.

1992-08-01

The critical parameters resulting from the restructuring of Space Station Freedom which necessitated the redesign of the Mobile Remote Service Base System (MBS) are described. These include optimization of robotic attachment locations for access to the Space Station truss-mounted orbital replacement units, transport of logistics carriers to the maintenance sites, minimization of EVA overhead associated with maintenance, self-maintenance of other mobile servicing system (MSS) elements on the MBS, and balancing of station EVA and extravehicular robotics in a complementary fashion to minimize maintenance overhead in general. Consideration is given to the configuration of the resulting MBS, which provides the program with maximum flexibility to utilize the assets of the MSS and optimizes end-to-end maintenance with regard to the use of station resources such as crew time and power. Maintenance and servicing scenarios which are instrumental to the reconfigured MBS as well as the results of improved maintenance capability are presented.

Improving Educational Outcomes by Providing Educational Services through Mobile Technology

OpenAIRE

Hosam Farouk El-Sofany

2013-01-01

The use of Computers, Networks, and Internet has successfully enabled educational institutions to provide their students and instructors with various online educational services. With the recent developments in M-learning and mobile technology, further possibilities are emerging to provide such services through mobile devices such as mobile phones and PDAs. By providing the educational services using wireless and mobile technologies, the educational institutions can potentially bring great co...

Development and Implementation of Location Based Native Mobile Application

OpenAIRE

Čović, Zlatko; Babić, Dejan

2014-01-01

This paper presents the development and implementation of a location based native mobile application for smart phones with the Android operating system. It can be used in promotion of some product or brand in the way of mobile games. The application has the administration interface (back-end) for data manipulation of users, administrators, clients and items. The system distinguishes between three levels of users: the main administrator, administrators-customers and users. The paper also descr...

An IMS-Based Middleware Solution for Energy-Efficient and Cost-Effective Mobile Multimedia Services

Science.gov (United States)

Bellavista, Paolo; Corradi, Antonio; Foschini, Luca

Mobile multimedia services have recently become of extreme industrial relevance due to the advances in both wireless client devices and multimedia communications. That has motivated important standardization efforts, such as the IP Multimedia Subsystem (IMS) to support session control, mobility, and interoperability in all-IP next generation networks. Notwithstanding the central role of IMS in novel mobile multimedia, the potential of IMS-based service composition for the development of new classes of ready-to-use, energy-efficient, and cost-effective services is still widely unexplored. The paper proposes an original solution for the dynamic and standard-compliant redirection of incoming voice calls towards WiFi-equipped smart phones. The primary design guideline is to reduce energy consumption and service costs for the final user by automatically switching from the 3G to the WiFi infrastructure whenever possible. The proposal is fully compliant with the IMS standard and exploits the recently released IMS presence service to update device location and current communication opportunities. The reported experimental results point out that our solution, in a simple way and with full compliance with state-of-the-art industrially-accepted standards, can significantly increase battery lifetime without negative effects on call initiation delay.

Considering Affective Responses towards Environments for Enhancing Location Based Services

Science.gov (United States)

Huang, H.; Gartner, G.; Klettner, S.; Schmidt, M.

2014-04-01

A number of studies in the field of environmental psychology show that humans perceive and evaluate their surroundings affectively. Some places are experienced as unsafe, while some others as attractive and interesting. Experiences from daily life show that many of our daily behaviours and decision-making are often influenced by this kind of affective responses towards environments. Location based services (LBS) are often designed to assist and support people's behaviours and decision-making in space. In order to provide services with high usefulness (usability and utility), LBS should consider these kinds of affective responses towards environments. This paper reports on the results of a research project, which studies how people's affective responses towards environments can be modelled and acquired, as well as how LBS can benefit by considering these affective responses. As one of the most popular LBS applications, mobile pedestrian navigation systems are used as an example for illustration.

Locating Objects in Wide-Area Systems

NARCIS (Netherlands)

Steen, M. van; Hauck, F.J.; Homburg, P.; Tanenbaum, A.S.

Locating mobile objects in a worldwide system requires a scalable location service. An object can be a telephone or a notebook computer, but also a software or data object, such as a file or an electronic document. Our service strictly separates an object's name from the addresses where it can be

Developing NaviCanPlan: A Mobile Web Resource Locator for Cancer Providers and Survivors.

Science.gov (United States)

Vollmer Dahlke, Deborah; Kellstedt, Debra; Weinberg, Armin D

2015-12-01

As of January, 2012, an estimated 13.7 million persons are living as cancer survivors. This population is expected to grow to nearly 18 million by 2022. While their treatment may be considered successful, many cancer survivors experience long-term physical, emotional, and psychosocial late effects of treatment. Our focus was on community-based cancer care-both rural and urban-as almost 90% of cancer care occurs in community settings, where a full complement of supportive healthcare professionals may not be available. This study describes the results of stakeholder engagement and the feedback processes used to create NaviCanPlan, a mobile web resource locator designed to educate and inform both providers and survivors in finding health-related services, often in noncancer center settings. Individual interviews with survivors and providers regarding resource needs to address a variety of physical and psychosocial late effects were supplemented with site visits, web-based polling, and webinars discussions. Overall, the results indicated a need for a programmatic approach to providing education about community, medical, and nonmedical resources for providers and survivors. Design and content criteria for a web-based mobile resource locator were defined, articulated, and implemented.

Low-Cost Bluetooth Mobile Positioning for Location-based Application

OpenAIRE

Barahim, Zaafir; Doomun, M. Razvi; Joomun, Nazrana

2012-01-01

Bluetooth is a promising short-range radio network technology. We present a low cost and easily deployed, scalable infrastructure for indoor location-based computing of mobile devices based on Bluetooth technology. The system consists of 2 main components, namely the Bluetooth (BT) Sensor System and the Central Navigation System which have been developed using the JDK 6.0. The Bluetooth Sensor System allows mobile devices whose Bluetooth mode is set to discoverable, to be scanned and detected...

Exploring Intracity Taxi Mobility during the Holidays for Location-Based Marketing

Directory of Open Access Journals (Sweden)

Wen-jun Wang

2017-01-01

Full Text Available Taxi mobility information can be considered as an important source of mobile location-based information for making marketing decisions. So, studying the behavioral patterns of taxis in a Chinese city during the holidays using the global positioning system (GPS can yield remarkable insights into people’s holiday travel patterns, as well as the odd-even day vehicle prohibition system. This paper studies the behavioral patterns of taxis during specific holidays in terms of pick-up and drop-off locations, travel distance, mobile step length, travel direction, and radius of gyration on the basis of GPS data. Our results support the idea of a polycentric city. It is concluded from the reporting results that there are no significant changes in the distribution of pick-up and drop-off locations, travel distance, or travel direction during holidays in comparison to work days. The results suggest that human travel by taxi has a stable regularity. However, the radius of gyration of movement by most of the taxis becomes significantly larger during holidays that indicate more long-distance travels. The current study will be helpful for location-based marketing during the holidays.

Mobile-PKI Service Model for Ubiquitous Environment

Science.gov (United States)

Jeun, Inkyung; Chun, Kilsoo

One of the most important things in PKI(Public Key Infrastructure) is the private key management issue. The private key must be deal with safely for secure PKI service. Even though PKI service is usually used for identification and authentication of user in e-commerce, PKI service has many inconvenient factors. Especially, the fact that storage media of private key for PKI service is limited to PC hard disk drive or smart card users must always carry, gives an inconvenience to user and is not suitable in ubiquitous network. This paper suggests the digital signature service using a mobile phone(m-PKI service) which is suitable in future network. A mobile phone is the most widely used for personal communication means and has a characteristic of high movability. We can use the PKI service anytime and anywhere using m-PKI.

Web Services in Mobile Applications

Directory of Open Access Journals (Sweden)

Octavian DOSPINESCU

2013-01-01

Full Text Available Information and communication technologies are designed to support and anticipate the continuing changes of the information society, while outlining new economic, social and cultural dimensions. We see the growth of new business models whose aim is to remove traditional barriers and improve the value of goods and services. Information is a strategic resource and its manipulation raises new problems for all entities involved in the process. Information and communication technologies should be a stable support in managing the flow of data and support the integrity, confidentiality and availability. Concepts such as eBusiness, eCommerce, Software as a Service, Cloud Computing and Social Media are based on web technologies consisting of complex languages, protocols and standards, built around client-server architecture. One of the most used technologies in mobile applications are the Web Services defined as an application model supported by any operating system able to provide certain functionalities using Internet technologies to promote interoperability between various appli-cations and platforms. Web services use HTTP, XML, SSL, SMTP and SOAP, because their stability has proven over the years. Their functionalities are highly variable, with Web services applications exchange type, weather, arithmetic or authentication services. In this article we will talk about SOAP and REST architectures for web services in mobile applications and we will also provide some practical examples based on Android platform.

Virtual Private Networks for mobile environments. Development of protocol for mobile security and algorithms for location update.

OpenAIRE

Tzvetkov, Vesselin Dimitrov

2010-01-01

The classical networks for broadcast, telephony and data are converging to services on the Next Generation Networks (NGN), which are introduced by all major Service Providers (SP). Major requirements on the future IP network are security and mobility, which are reflection of the Internet’s importance and wide use of portable smart devices. Secure IP mobility is the focus of this thesis, i.e. how the user can move through different access networks whilst maintaining uninterrupted and secure IP...

Mobile home automation-merging mobile value added services and home automation technologies

OpenAIRE

Rosendahl, Andreas; Hampe, Felix J.; Botterweck, Goetz

2007-01-01

non-peer-reviewed In this paper we study mobile home automation, a field that emerges from an integration of mobile application platforms and home automation technologies. In a conceptual introduction we first illustrate the need for such applications by introducing a two-dimensional conceptual model of mobility. Subsequently we suggest an architecture and discuss different options of how a user might access a mobile home automation service and the controlled devices. As another contrib...

Mobile technology for expansion of service range medan public library

Science.gov (United States)

Siregar, A. R.; Dewiyana, H.

2018-03-01

The information society, especially library users, expects an easier and faster way to get information and share knowledge. The library also implements the best way to provide the best service and the easiest way to disseminate and share information with its users. One technology that allows libraries more closely with their users is mobile technology. This paper aims to determine the basic conditions of mobile technology services and mobile services most needed library users, as well as constraints faced by libraries and users in the application of mobile technology. This paper will help libraries to develop better M-Library services in expanding the reach of library services. Methods of data collection were conducted through surveys through questionnaires, interviews, and direct observation. The results of the use of mobile technology applications in libraries bring great advantages to provide better library services and to improve accessibility of library resources in the easiest way, but due to lack of funds, lack of skills and lack of staff, many libraries are unable to provide this service with very successful.

Alternative Data Storage Solution for Mobile Messaging Services

Directory of Open Access Journals (Sweden)

David C. C. Ong

2007-01-01

Full Text Available In recent years, mobile devices have become relatively more powerful with additional features which have the capability to provide multimedia streaming. Better, faster and more reliable data storage solutions in the mobile messaging platform have become more essential with these additional improvements. The existing mobile messaging infrastructure, in particular the data storage platform has become less proficient in coping with the increased demand for its services. This demand especially in the mobile messaging area (i.e. SMS – Short Messaging Service, MMS – Multimedia Messaging Service, which may well exceeded 250,000 requests per second, means that the need to evaluate competing data management systems has become not only necessary but essential. This paper presents an evaluation of SMS and MMS platforms using different database management systems – DBMS and recommends the best data management strategies for these platforms.

On the benefits of location-based relay selection in mobile wireless networks

DEFF Research Database (Denmark)

Nielsen, Jimmy Jessen; Madsen, Tatiana Kozlova; Schwefel, Hans-Peter

2016-01-01

We consider infrastructure-based mobile networks that are assisted by a single relay transmission where both the downstream destination and relay nodes are mobile. Selecting the optimal transmission path for a destination node requires up-to-date link quality estimates of all relevant links....... If the relay selection is based on link quality measurements, the number of links to update grows quadratically with the number of nodes, and measurements need to be updated frequently when nodes are mobile. In this paper, we consider a location-based relay selection scheme where link qualities are estimated...... from node positions; in the scenario of a node-based location system such as GPS, the location-based approach reduces signaling overhead, which in this case only grows linearly with the number of nodes. This paper studies these two relay selection approaches and investigates how they are affected...

Personalized Popular Blog Recommender Service for Mobile Applications

Science.gov (United States)

Tsai, Pei-Yun; Liu, Duen-Ren

Weblogs have emerged as a new communication and publication medium on the Internet for diffusing the latest useful information. Providing value-added mobile services such as blog articles is increasingly important to attract mobile users to mobile commerce. There are, however, a tremendous number of blog articles, and mobile users generally have difficulty in browsing weblogs. Accordingly, providing mobile users with blog articles that suit their interests is an important issue. Very little research, however, focuses on this issue. In this work, we propose a Customized Content Service on a mobile device (m-CCS) to filter and push blog articles to mobile users. The m-CCS can predict the latest popular blog topics by forecasting the trend of time-sensitive popularity of weblogs. Furthermore, to meet the diversified interest of mobile users, m-CCS further analyzes users’ browsing logs to derive their interests, which are then used to recommend their preferred popular blog topics and articles. The prototype system of m-CCS demonstrates that the system can effectively recommend mobile users desirable blog articles with respect to both popularity and personal interests.

BlueDetect: An iBeacon-Enabled Scheme for Accurate and Energy-Efficient Indoor-Outdoor Detection and Seamless Location-Based Service.

Science.gov (United States)

Zou, Han; Jiang, Hao; Luo, Yiwen; Zhu, Jianjie; Lu, Xiaoxuan; Xie, Lihua

2016-02-22

The location and contextual status (indoor or outdoor) is fundamental and critical information for upper-layer applications, such as activity recognition and location-based services (LBS) for individuals. In addition, optimizations of building management systems (BMS), such as the pre-cooling or heating process of the air-conditioning system according to the human traffic entering or exiting a building, can utilize the information, as well. The emerging mobile devices, which are equipped with various sensors, become a feasible and flexible platform to perform indoor-outdoor (IO) detection. However, power-hungry sensors, such as GPS and WiFi, should be used with caution due to the constrained battery storage on mobile device. We propose BlueDetect: an accurate, fast response and energy-efficient scheme for IO detection and seamless LBS running on the mobile device based on the emerging low-power iBeacon technology. By leveraging the on-broad Bluetooth module and our proposed algorithms, BlueDetect provides a precise IO detection service that can turn on/off on-board power-hungry sensors smartly and automatically, optimize their performances and reduce the power consumption of mobile devices simultaneously. Moreover, seamless positioning and navigation services can be realized by it, especially in a semi-outdoor environment, which cannot be achieved by GPS or an indoor positioning system (IPS) easily. We prototype BlueDetect on Android mobile devices and evaluate its performance comprehensively. The experimental results have validated the superiority of BlueDetect in terms of IO detection accuracy, localization accuracy and energy consumption.

BlueDetect: An iBeacon-Enabled Scheme for Accurate and Energy-Efficient Indoor-Outdoor Detection and Seamless Location-Based Service

Directory of Open Access Journals (Sweden)

Han Zou

2016-02-01

Full Text Available The location and contextual status (indoor or outdoor is fundamental and critical information for upper-layer applications, such as activity recognition and location-based services (LBS for individuals. In addition, optimizations of building management systems (BMS, such as the pre-cooling or heating process of the air-conditioning system according to the human traffic entering or exiting a building, can utilize the information, as well. The emerging mobile devices, which are equipped with various sensors, become a feasible and flexible platform to perform indoor-outdoor (IO detection. However, power-hungry sensors, such as GPS and WiFi, should be used with caution due to the constrained battery storage on mobile device. We propose BlueDetect: an accurate, fast response and energy-efficient scheme for IO detection and seamless LBS running on the mobile device based on the emerging low-power iBeacon technology. By leveraging the on-broad Bluetooth module and our proposed algorithms, BlueDetect provides a precise IO detection service that can turn on/off on-board power-hungry sensors smartly and automatically, optimize their performances and reduce the power consumption of mobile devices simultaneously. Moreover, seamless positioning and navigation services can be realized by it, especially in a semi-outdoor environment, which cannot be achieved by GPS or an indoor positioning system (IPS easily. We prototype BlueDetect on Android mobile devices and evaluate its performance comprehensively. The experimental results have validated the superiority of BlueDetect in terms of IO detection accuracy, localization accuracy and energy consumption.

Factors influencing business of mobile telecommunication service providers in Vietnam

Directory of Open Access Journals (Sweden)

Ha Thanh Hai

2018-05-01

Full Text Available According to the Ministry of Information and Communications in Vietnam, as of November 2015, the number of mobile subscribers is over 120 million ones, accounting for over 86% of the total number of telephone subscribers. With a total population of over 92 million Vietnam citizens, a stable national economy and a large populations of young consumers in the country, mobile communication industries still have a huge potentials for future development. Telecommunication service providers in Vietnam are facing fierce competition. Subscribers are expecting OTT (Over the Top applications, good quality service and handset subsidy. This study investigated whether legal frameworks, OTT applications, quality of service and handset subsidy are important components of mobile telecommunication service in Vietnam. This study used quantitative method to distribute surveys to mobile subscribers. Findings found that all four factors significantly influence mobile business in Vietnam. Thus, telecommunication service providers in Vietnam must continuously innovate to enhance operational competitiveness, improve business efficiency, expand business scale, and improve its position in the market in order to ensure sustainable development. Moreover, Vietnamese government needs to develop a legal framework to help mobile telecommunication service providers enhance the common interests and benefits of the entire society.

Fractal Adaptive Web Service for Mobile Learning

Directory of Open Access Journals (Sweden)

Ichraf Tirellil

2006-06-01

Full Text Available This paper describes our proposition for adaptive web services which is based on configurable, re-usable adaptive/personalized services. To realize our ideas, we have developed an approach for designing, implementing and maintaining personal service. This approach enables the user to accomplish an activity with a set of services answering to his preferences, his profiles and to a personalized context. In this paper, we describe the principle of our approach that we call fractal adaptation approach, and we discuss the implementation of personalization services in the context of mobile and collaborative scenario of learning. We have realized a platform in this context -a platform for mobile and collaborative learning- based on fractal adaptable web services. The platform is tested with a population of students and tutors, in order to release the gaps and the advantages of the approach suggested.

A Platform for Mobile Service Provisioning Based on SOA-Integration

Science.gov (United States)

Decker, Michael; Bulander, Rebecca

A middleware platform designed for the provisioning of data services for mobile computers using wireless data communication (e.g. smartphones or PDAs) has to offer a variety of different features. Some of these features have to be provided by external parties, e.g. billing or content syndication. The integration of all these features while considering mobile-specific challenges is a demanding task. In the article at hand we thus describe a middleware platform for mobile services which follows the idea of a so called Enterprise Service Bus (ESB). We explain the concept of ESB and argue why an ESB is an appropriate fundament for a platform for mobile service provisioning.

Visual interfaces as an approach for providing mobile services and mobile content to low literate users in South Africa

CSIR Research Space (South Africa)

Matyila, M

2014-05-01

Full Text Available Mobile services and mobile content is available to diverse users in possession of the necessary mobile phones. However, some of the mobile services and mobile content is text intensive and this discounts low literate users in participation...

MicroMAIS : executing and orchestrating Web services on constrained mobile devices

NARCIS (Netherlands)

Plebani, P.; Cappiello, C.; Comuzzi, M.; Pernici, B.; Yadav, S.

2012-01-01

Mobile devices with their more and more powerful resources allow the development of mobile information systems in which services are not only provided by traditional systems but also autonomously executed and controlled in the mobile devices themselves. Services distributed on autonomous mobile

Location Based Services and Applications

OpenAIRE

Elenis Gorrita Michel; Rónier Sierra Dávila; Samuel Montejo Sánchez

2012-01-01

Location Based Services (LBS) continue to grow in popularity, effectiveness and reliability, to the extent that applications are designed and implemented taking into account the facilities of the user location information. In this work, some of the main applications are addressed, in order to make an assessment of the current importance of the LBS, as a branch of technology in full swing. In addition, the main techniques for location estimation are studied, essential information to the LBS. B...

Mobile cosmetics advisor: an imaging based mobile service

Science.gov (United States)

Bhatti, Nina; Baker, Harlyn; Chao, Hui; Clearwater, Scott; Harville, Mike; Jain, Jhilmil; Lyons, Nic; Marguier, Joanna; Schettino, John; Süsstrunk, Sabine

2010-01-01

Selecting cosmetics requires visual information and often benefits from the assessments of a cosmetics expert. In this paper we present a unique mobile imaging application that enables women to use their cell phones to get immediate expert advice when selecting personal cosmetic products. We derive the visual information from analysis of camera phone images, and provide the judgment of the cosmetics specialist through use of an expert system. The result is a new paradigm for mobile interactions-image-based information services exploiting the ubiquity of camera phones. The application is designed to work with any handset over any cellular carrier using commonly available MMS and SMS features. Targeted at the unsophisticated consumer, it must be quick and easy to use, not requiring download capabilities or preplanning. Thus, all application processing occurs in the back-end system and not on the handset itself. We present the imaging pipeline technology and a comparison of the services' accuracy with respect to human experts.

Intelligent Context-Aware and Adaptive Interface for Mobile LBS.

Science.gov (United States)

Feng, Jiangfan; Liu, Yanhong

2015-01-01

Context-aware user interface plays an important role in many human-computer Interaction tasks of location based services. Although spatial models for context-aware systems have been studied extensively, how to locate specific spatial information for users is still not well resolved, which is important in the mobile environment where location based services users are impeded by device limitations. Better context-aware human-computer interaction models of mobile location based services are needed not just to predict performance outcomes, such as whether people will be able to find the information needed to complete a human-computer interaction task, but to understand human processes that interact in spatial query, which will in turn inform the detailed design of better user interfaces in mobile location based services. In this study, a context-aware adaptive model for mobile location based services interface is proposed, which contains three major sections: purpose, adjustment, and adaptation. Based on this model we try to describe the process of user operation and interface adaptation clearly through the dynamic interaction between users and the interface. Then we show how the model applies users' demands in a complicated environment and suggested the feasibility by the experimental results.

LPTA: location predictive and time adaptive data gathering scheme with mobile sink for wireless sensor networks.

Science.gov (United States)

Zhu, Chuan; Wang, Yao; Han, Guangjie; Rodrigues, Joel J P C; Lloret, Jaime

2014-01-01

This paper exploits sink mobility to prolong the lifetime of sensor networks while maintaining the data transmission delay relatively low. A location predictive and time adaptive data gathering scheme is proposed. In this paper, we introduce a sink location prediction principle based on loose time synchronization and deduce the time-location formulas of the mobile sink. According to local clocks and the time-location formulas of the mobile sink, nodes in the network are able to calculate the current location of the mobile sink accurately and route data packets timely toward the mobile sink by multihop relay. Considering that data packets generating from different areas may be different greatly, an adaptive dwelling time adjustment method is also proposed to balance energy consumption among nodes in the network. Simulation results show that our data gathering scheme enables data routing with less data transmission time delay and balance energy consumption among nodes.

MicroMAIS: executing and orchestrating Web services on constrained mobile devices

OpenAIRE

Plebani, Pierluigi; Cappiello, Cinzia; Comuzzi, Marco; Pernici, Barbara; Yadav, Sandeep

2012-01-01

Mobile devices with their more and more powerful resources allow the development of mobile information systems in which services are not only provided by traditional systems but also autonomously executed and controlled in the mobile devices themselves. Services distributed on autonomous mobile devices allow both the development of cooperative applications without a back-end infrastructure and the development of applications blending distributed and centralized services. In this paper, we pro...

Context-Aware Middleware Support for the Nomadic Mobile Services on Multi-homed Handheld Mobile Devices

NARCIS (Netherlands)

Pawar, Pravin; van Beijnum, Bert-Jan; Peddemors, Arjan; van Halteren, Aart

2007-01-01

Nowadays, a variety ofhandheld mobile devices are capable of connecting to the Internet using multiple network interfaces. This is referred to as multi-homing. In addition to this, enriched computation resources allow them to host nomadic mobile services and provide these services to the clients

LBS Mobile Learning System Based on Android Platform

Directory of Open Access Journals (Sweden)

Zhang Ya-Li

2017-01-01

Full Text Available In the era of mobile internet, PC-end internet services can no long satisfy people’s demands, needs for App and services on mobile phones are more urgent than ever. With increasing social competition, the concept of lifelong learning becomes more and more popular and accepted, making full use of spare time to learn at any time and any place meets updating knowledge desires of modern people, Location Based System (LBS mobile learning system based on Android platform was created under such background. In this Paper, characteristics of mobile location technology and intelligent terminal were introduced and analyzed, mobile learning system which will fulfill personalized needs of mobile learners was designed and developed on basis of location information, mobile learning can be greatly promoted and new research ideas can be expanded for mobile learning.

Mobile user experience for voice services: A theoretical framework

CSIR Research Space (South Africa)

Botha, Adèle

2012-02-01

Full Text Available The purpose of this paper is to provide a “Mobile User Experience Framework for Voice services.” The rapid spread of mobile cellular technology within Africa has made it a prime vehicle for accessing services and content. The challenge remains...

Investigating Students' Perceptions on Mobile Learning Services

Directory of Open Access Journals (Sweden)

Mohammed Amin Almaiah

2014-10-01

Full Text Available M-learning is a form of learning, which has similarities and differences with the electronic learning (e-learning. It is mainly based on the use of the mobile wireless technologies that allow for learners to easily access learning materials anytime he desires and anywhere, whether on campus or off campus. Therefore, this creates a new flexible learning environment in the context of different learning settings. Students' perception of such technology is one of the most important factors for successful adoption of m-learning in the higher education environment. This study is conducted to investigate the perceptions of students in University Malaysia Terengganu (UMT to move towards applying m-learning in their studies by using their mobile devices and to explore their expectations on mobile learning services. A total number of 91 undergraduate students majoring in computer science participated in the study. The findings show that the students have positive perception towards mobile learning and would like to use their mobile devices for both learning and administrative services.

LPTA: Location Predictive and Time Adaptive Data Gathering Scheme with Mobile Sink for Wireless Sensor Networks

Directory of Open Access Journals (Sweden)

Chuan Zhu

2014-01-01

Full Text Available This paper exploits sink mobility to prolong the lifetime of sensor networks while maintaining the data transmission delay relatively low. A location predictive and time adaptive data gathering scheme is proposed. In this paper, we introduce a sink location prediction principle based on loose time synchronization and deduce the time-location formulas of the mobile sink. According to local clocks and the time-location formulas of the mobile sink, nodes in the network are able to calculate the current location of the mobile sink accurately and route data packets timely toward the mobile sink by multihop relay. Considering that data packets generating from different areas may be different greatly, an adaptive dwelling time adjustment method is also proposed to balance energy consumption among nodes in the network. Simulation results show that our data gathering scheme enables data routing with less data transmission time delay and balance energy consumption among nodes.

Factors Affecting the Intention to Reuse Mobile Banking Service

Directory of Open Access Journals (Sweden)

Ceva Lavenja Arahita

2015-10-01

Full Text Available The accelerated advancement in technology resulted to the appearance of Self Service Technology. One form of self-service technology in the banking sector is the presence of mobile banking. This study aims to examine the influence of five factors toward the reusing of Mobile Bank Central Asia (BCA in Bandung. Those factors used in this study were the extension of Technology Acceptance Model (TAM constructs, i.e perceived usefulness, perceived ease of use, perceived credibility, customer awareness and social influence. Data was collected through distributed questionnaire to 100 respondents who used Mobile BCA by using judgment sampling. Multiple linear regression technique was employed to investigate the influence among variables. This study empirically concluded that consumer intention to reuse BCA mobile services was positively influenced by perceived ease of use, customer awareness and social influence. On the other hand, perceived usefulness and perceived credibility did not influence the intention of reusing Mobile BCA in Bandung. Further study is suggested to use probability sampling technique to cover the real voice of mobile banking user in Bandung and to explore the lack influence of perceived usefulness and perceived credibility toward reusing of Mobile BCA.

Factors Affecting the Intention to Reuse Mobile Banking Service

Directory of Open Access Journals (Sweden)

Ceva Lavenja Arahita

2015-12-01

Full Text Available The accelerated advancement in technology resulted to the appearance of Self Service Technology. One form of self-service technology in the banking sector is the presence of mobile banking. This study aims to examine the influence of five factors toward the reusing of Mobile Bank Central Asia (BCA in Bandung. Those factors used in this study were the extension of Technology Acceptance Model (TAM constructs, i.e perceived usefulness, perceived ease of use, perceived credibility, customer awareness and social influence. Data was collected through distributed questionnaire to 100 respondents who used Mobile BCA by using judgment sampling. Multiple linear regression technique was employed to investigate the influence among variables. This study empirically concluded that consumer intention to reuse BCA mobile services was positively influenced by social influence, customer awareness and perceived ease of use. On the other hand, perceived usefulness and perceived credibility did not influence the intention of reusing Mobile BCA in Bandung. Further study is suggested to use probability sampling technique to cover the real voice of mobile banking user in Bandung and to explore the lack influence of perceived usefulness and perceived credibility toward reusing of Mobile BCA.

Maintenance work on CERN mobile phone services

CERN Multimedia

2007-01-01

Maintenance work on the CERN GSM services will be carried out by our mobile operator, Sunrise, from 8.00 p.m. on 25 June to 1 a.m. on 26 June. External calls from CERN mobile phones using the 333 prefix may be disrupted for 30 minutes during this time. Other type of calls, e.g. mobile to mobile or mobile to CERN fixed phones, will not be affected. Should you have any questions regarding this maintenance operation, please contact the switchboard by phone (76111) or e-mail (standard.telephone@cern.ch) Telecom Section IT/CS

Modeling Medical Services with Mobile Health Applications

Directory of Open Access Journals (Sweden)

Zhenfei Wang

2018-01-01

Full Text Available The rapid development of mobile health technology (m-Health provides unprecedented opportunities for improving health services. As the bridge between doctors and patients, mobile health applications enable patients to communicate with doctors through their smartphones, which is becoming more and more popular among people. To evaluate the influence of m-Health applications on the medical service market, we propose a medical service equilibrium model. The model can balance the supply of doctors and demand of patients and reflect possible options for both doctors and patients with or without m-Health applications in the medical service market. In the meantime, we analyze the behavior of patients and the activities of doctors to minimize patients’ full costs of healthcare and doctors’ futility. Then, we provide a resolution algorithm through mathematical reasoning. Lastly, based on artificially generated dataset, experiments are conducted to evaluate the medical services of m-Health applications.

Locative media

CERN Document Server

Wilken, Rowan

2014-01-01

Not only is locative media one of the fastest growing areas in digital technology, but questions of location and location-awareness are increasingly central to our contemporary engagements with online and mobile media, and indeed media and culture generally. This volume is a comprehensive account of the various location-based technologies, services, applications, and cultures, as media, with an aim to identify, inventory, explore, and critique their cultural, economic, political, social, and policy dimensions internationally. In particular, the collection is organized around the perception that the growth of locative media gives rise to a number of crucial questions concerning the areas of culture, economy, and policy.

LPPS: A Distributed Cache Pushing Based K-Anonymity Location Privacy Preserving Scheme

Directory of Open Access Journals (Sweden)

Ming Chen

2016-01-01

Full Text Available Recent years have witnessed the rapid growth of location-based services (LBSs for mobile social network applications. To enable location-based services, mobile users are required to report their location information to the LBS servers and receive answers of location-based queries. Location privacy leak happens when such servers are compromised, which has been a primary concern for information security. To address this issue, we propose the Location Privacy Preservation Scheme (LPPS based on distributed cache pushing. Unlike existing solutions, LPPS deploys distributed cache proxies to cover users mostly visited locations and proactively push cache content to mobile users, which can reduce the risk of leaking users’ location information. The proposed LPPS includes three major process. First, we propose an algorithm to find the optimal deployment of proxies to cover popular locations. Second, we present cache strategies for location-based queries based on the Markov chain model and propose update and replacement strategies for cache content maintenance. Third, we introduce a privacy protection scheme which is proved to achieve k-anonymity guarantee for location-based services. Extensive experiments illustrate that the proposed LPPS achieves decent service coverage ratio and cache hit ratio with lower communication overhead compared to existing solutions.

Intelligent Context-Aware and Adaptive Interface for Mobile LBS

Directory of Open Access Journals (Sweden)

Jiangfan Feng

2015-01-01

Full Text Available Context-aware user interface plays an important role in many human-computer Interaction tasks of location based services. Although spatial models for context-aware systems have been studied extensively, how to locate specific spatial information for users is still not well resolved, which is important in the mobile environment where location based services users are impeded by device limitations. Better context-aware human-computer interaction models of mobile location based services are needed not just to predict performance outcomes, such as whether people will be able to find the information needed to complete a human-computer interaction task, but to understand human processes that interact in spatial query, which will in turn inform the detailed design of better user interfaces in mobile location based services. In this study, a context-aware adaptive model for mobile location based services interface is proposed, which contains three major sections: purpose, adjustment, and adaptation. Based on this model we try to describe the process of user operation and interface adaptation clearly through the dynamic interaction between users and the interface. Then we show how the model applies users’ demands in a complicated environment and suggested the feasibility by the experimental results.

Generating Ideas for New Mobile TV Services

DEFF Research Database (Denmark)

Sørensen, Lene Tolstrup; Nicolajsen, Hanne Westh

2010-01-01

Mobile TV is still in its infancy in respect to identifying new services/content, which deploy the technology convergence of broadcasting, Internet and radio while satisfying the user with respect to interactivity, sociability and content, and at the same time fit the small screen of a mobile phone...

Using Web Services for a Mobile OPAC

Directory of Open Access Journals (Sweden)

Denis Galvin

2011-04-01

Full Text Available The purpose of this paper is to discuss the creation and intended evolution of the Rice University mobile online public access catalog (OPAC. The focus of the article is on how SirsiDynix’s Symphony Web Services can be used to create a mobile OPAC.

Mobile Security Using Android: Locate Your Droid

OpenAIRE

Mr. Amandeep Singh Arora; Ms. Jasvinder Kumar

2015-01-01

For the past several decades, designers have processed security for a wide variety of applications from mobiles to automatic machines. Losing a smart phone can be an especially bad thing, since they are so expensive, and carry so much information. This application needs to be installed before. With this application user has the choice to launch phone tracking and finding cell phone by sending SMS requests to their lost phone and even getting the locations of the phones that are lo...

Coopetitive Service Innovation in Mobile Payment Ecosystems

OpenAIRE

Zhong, Junying

2015-01-01

Mobile payments are a new way to pay in the digital era. The emerging mobile payment platforms and services enable viable businesses through exchanges of value between consumers and collaborating actors in a real-time and context-specific way. However, business interactions in mobile payment markets are reected in a highly dynamic market structure that requires coopetition (simultaneous competition and collaboration) between the participants in the markets. This dissertation studies how mo...

Mobile agent location in distributed environments

Science.gov (United States)

Fountoukis, S. G.; Argyropoulos, I. P.

2012-12-01

An agent is a small program acting on behalf of a user or an application which plays the role of a user. Artificial intelligence can be encapsulated in agents so that they can be capable of both behaving autonomously and showing an elementary decision ability regarding movement and some specific actions. Therefore they are often called autonomous mobile agents. In a distributed system, they can move themselves from one processing node to another through the interconnecting network infrastructure. Their purpose is to collect useful information and to carry it back to their user. Also, agents are used to start, monitor and stop processes running on the individual interconnected processing nodes of computer cluster systems. An agent has a unique id to discriminate itself from other agents and a current position. The position can be expressed as the address of the processing node which currently hosts the agent. Very often, it is necessary for a user, a processing node or another agent to know the current position of an agent in a distributed system. Several procedures and algorithms have been proposed for the purpose of position location of mobile agents. The most basic of all employs a fixed computing node, which acts as agent position repository, receiving messages from all the moving agents and keeping records of their current positions. The fixed node, responds to position queries and informs users, other nodes and other agents about the position of an agent. Herein, a model is proposed that considers pairs and triples of agents instead of single ones. A location method, which is investigated in this paper, attempts to exploit this model.

A Synchronous Collaborative Service Oriented Mobile Learning Architecture SCSOMLA

Directory of Open Access Journals (Sweden)

Charles Wamuti

2015-08-01

Full Text Available Despite the growth of mobile learning and advantages offered such as portability social interactivity context sensitivity convenience inclusive and non-discriminatory independence data collected showed that there is low use of such mobile learning systems. Investigation on mobile learning sought the participation of users and availability of users the mimicability of the class room and the various implementations in institutions and attempts at synchronous collaboration in existing Mobile Learning based infrastructure. As seen in the research the social aspect of smart mobile phones has not been leveraged to be incorporated in mobile learning infrastructure where a class is seen as a social place. Mobile Learning has not allowed a collaborative part of the social constructivism theory approach to users of these technologies which have focused on technology other than the fundamental of teaching collaborative pedagogy. Options that would enable group collaboration would be necessary to increase the quality of service for those teaching and learning in a mobile environment. With this lack of environmental feel and exposing the services that are offered in the teaching business service oriented architecture a mature technology was applied due to its seamless integration to business processes. Research explored what standards have been proposed regarding Service Oriented Architecture S.O.A. and M-Learning how has time-based collaboration been archived in other m-learning systems and how can time-based collaboration S.O.A. and M-Learning be wrapped around An architecture based on the intersection of time-based collaboration S.O.A. and M-Learning then was designed and evaluated. Results of a user study comparing a mobile learning system integrated social collaborative pedagogical features suggest that an enhanced social presence was achieved where users worked together similar to a conventional classroom.

Selecting the Best Mobile Information Service with Natural Language User Input

Science.gov (United States)

Feng, Qiangze; Qi, Hongwei; Fukushima, Toshikazu

Information services accessed via mobile phones provide information directly relevant to subscribers’ daily lives and are an area of dynamic market growth worldwide. Although many information services are currently offered by mobile operators, many of the existing solutions require a unique gateway for each service, and it is inconvenient for users to have to remember a large number of such gateways. Furthermore, the Short Message Service (SMS) is very popular in China and Chinese users would prefer to access these services in natural language via SMS. This chapter describes a Natural Language Based Service Selection System (NL3S) for use with a large number of mobile information services. The system can accept user queries in natural language and navigate it to the required service. Since it is difficult for existing methods to achieve high accuracy and high coverage and anticipate which other services a user might want to query, the NL3S is developed based on a Multi-service Ontology (MO) and Multi-service Query Language (MQL). The MO and MQL provide semantic and linguistic knowledge, respectively, to facilitate service selection for a user query and to provide adaptive service recommendations. Experiments show that the NL3S can achieve 75-95% accuracies and 85-95% satisfactions for processing various styles of natural language queries. A trial involving navigation of 30 different mobile services shows that the NL3S can provide a viable commercial solution for mobile operators.

Sistem Informasi Geografis Asrama Mahasiswa Aceh Berbasis LBS (Location Based Service “Saweue Syedara” Berbasis Android

Directory of Open Access Journals (Sweden)

Alwie Augusra T. A

2015-01-01

Full Text Available Student Dormitory is a desirable place to live for all overseas Aceh students that far from home, Student Dormitory be exclusive if the existence of a dormitory is located very far from the government and from the student's hometown, so the presence of dormitory is felt not exist and far from elegant impression , there are many Aceh students dormitory are not recorded by the Regional Government , that recorded only dormitory under the auspices of the government, when in fact the most dormitory are located under other institutions. Along with the development of, make it even easier people's lives in their daily live. During its development, mobile technology can determine the position of users, find the location you want to target, and provide a route to that location. The use of mobile devices for the Aceh Government, Society, and students in particular is to facilitate them in the course of a visit to Student Dormitory. The geographic information system created using the Java programming language with SDK (Software Development Kit Android and using MySQL and SQLite databases, the system is a client-server. The process of making and development of Geographic Information System using SDLC (Software Development Life Cycle using prototyping life cycle. By using the life cycle of prototyping, the design can be quickly created and tested by users. Users can participate in helping the development of a system to provide feedback on the prototype that has been tried before, so that the system be made better. The result of this application design is the realization of a mobile application that can allow users to find information and search for Aceh Student Dormitory in Java Island, Indonesia. The Geographic Information System uses technology of LBS (Location Based Service, this allows users to find the location of dormitory that wish to visit. This system will be developed on mobile devices using the Android operating system.

What is 5G? Emerging 5G Mobile Services and Network Requirements

OpenAIRE

Heejung Yu; Howon Lee; Hongbeom Jeon

2017-01-01

In this paper, emerging 5G mobile services are investigated and categorized from the perspective of not service providers, but end-users. The development of 5G mobile services is based on an intensive analysis of the global trends in mobile services. Additionally, several indispensable service requirements, essential for realizing service scenarios presented, are described. To illustrate the changes in societies and in daily life in the 5G era, five megatrends, including the explosion of mobi...

Integrated Data Management for Mobile Services in the Real World

DEFF Research Database (Denmark)

Hage, C.; Jensen, Christian Søndergaard; Pedersen, Torben Bach

2003-01-01

Market research companies predict a huge market for services to be delivered to mobile users. Services in5 clude route guidance, point-of-interest search, metering services such as road pricing and parking payment, traffic monitoring, etc. We believe that no single such service will be the killer...... service, but that suites of integrated services are called for. Such integrated services reuse integrated content obtained from multiple content providers. This paper describes concepts and techniques underlying the data management system deployed by a Danish mobile content integrator. While geo...

Mobile Messaging Services-Based Personal Electrocardiogram Monitoring System

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Ashraf A. Tahat

2009-01-01

Full Text Available A mobile monitoring system utilizing Bluetooth and mobile messaging services (MMS/SMSs with low-cost hardware equipment is proposed. A proof of concept prototype has been developed and implemented to enable transmission of an Electrocardiogram (ECG signal and body temperature of a patient, which can be expanded to include other vital signs. Communication between a mobile smart-phone and the ECG and temperature acquisition apparatus is implemented using the popular personal area network standard specification Bluetooth. When utilizing MMS for transmission, the mobile phone plots the received ECG signal and displays the temperature using special application software running on the client mobile phone itself, where the plot can be captured and saved as an image before transmission. Alternatively, SMS can be selected as a transmission means, where in this scenario, dedicated application software is required at the receiving device. The experimental setup can be operated for monitoring from anywhere in the globe covered by a cellular network that offers data services.

Mobile messaging services-based personal electrocardiogram monitoring system.

Science.gov (United States)

Tahat, Ashraf A

2009-01-01

A mobile monitoring system utilizing Bluetooth and mobile messaging services (MMS/SMSs) with low-cost hardware equipment is proposed. A proof of concept prototype has been developed and implemented to enable transmission of an Electrocardiogram (ECG) signal and body temperature of a patient, which can be expanded to include other vital signs. Communication between a mobile smart-phone and the ECG and temperature acquisition apparatus is implemented using the popular personal area network standard specification Bluetooth. When utilizing MMS for transmission, the mobile phone plots the received ECG signal and displays the temperature using special application software running on the client mobile phone itself, where the plot can be captured and saved as an image before transmission. Alternatively, SMS can be selected as a transmission means, where in this scenario, dedicated application software is required at the receiving device. The experimental setup can be operated for monitoring from anywhere in the globe covered by a cellular network that offers data services.

When Location-Based Services Meet Databases

Directory of Open Access Journals (Sweden)

Dik Lun Lee

2005-01-01

Full Text Available As location-based services (LBSs grow to support a larger and larger user community and to provide more and more intelligent services, they must face a few fundamental challenges, including the ability to not only accept coordinates as location data but also manipulate high-level semantics of the physical environment. They must also handle a large amount of location updates and client requests and be able to scale up as their coverage increases. This paper describes some of our research in location modeling and updates and techniques for enhancing system performance by caching and batch processing. It can be observed that the challenges facing LBSs share a lot of similarity with traditional database research (i.e., data modeling, indexing, caching, and query optimization but the fact that LBSs are built into the physical space and the opportunity to exploit spatial locality in system design shed new light on LBS research.

Scoping out the literature on mobile needle and syringe programs-review of service delivery and client characteristics, operation, utilization, referrals, and impact.

Science.gov (United States)

Strike, Carol; Miskovic, Miroslav

2018-02-08

Needle and syringe program (NSP) service delivery models encompass fixed sites, mobile services, vending machines, pharmacies, peer NSPs, street outreach, and inter-organizational agreements to add NSP services to other programs. For programs seeking to implement or improve mobile services, access to a synthesis of the evidence related to mobile services is beneficial, but lacking. We used a scoping study method to search MEDLINE, PSYCHInfo, Embase, Scopus, and Sociological for relevant literature. We identified 39 relevant manuscripts published between 1975 and November 2017 after removing duplicates and non-relevant manuscripts from the 1313 identified by the search. Charting of the data showed that these publications reported findings related to the service delivery model characteristics, client characteristics, service utilization, specialized interventions offered on mobile NSPs, linking clients to other services, and impact on injection risk behaviors. Mobile NSPs are implemented in high-, medium-, and low-income countries; provide equipment distribution and many other harm reduction services; face limitations to service complement, confidentiality, and duration of interactions imposed by physical space; adapt to changes in locations and types of drug use; attract people who engage in high-risk/intensity injection behavior and who are often not reached by other service models; and may lead to reduced injection-related risks. It is not clear from the literature reviewed, what are, or if there are, a "core and essential" complement of services that mobile NSPs should offer. Decisions about service complement for mobile NSPs need to be made in relation to the context and also other available services. Reports of client visits to mobile NSP provide a picture of the volume and frequency of utilization but are difficult to compare given varied measures and reference periods. Mobile NSPs have an important role to play in improving HIV and HCV prevention efforts

Location based mobile app for doctor's appointment inSaudi Arabia ...

African Journals Online (AJOL)

Journal of Fundamental and Applied Sciences ... Reducing waiting times and surgeon idle time improves the quality of service and efficiency ... to develop an appointment management application for mobile devices using the Android platform.

Tanzania Telecommunication Company Limited as a Mobile Service Provider

OpenAIRE

Ndyamukama, Edna

2014-01-01

This bachelor’s thesis was researched and written under the consent and authority of Tanzania Telecommunication Company Limited (TTCL), with the purpose to find out ways of improving sales and profits of its mobile service department. The mobile service department of TTCL is performing poorly as compared to its competitors despite being managed by a strategically positioned and experienced company in tele-communication services. It was also meant to find out the positive contribution of compe...

The quality of mobile phone services provided by Romanian operators, from consumers` perspective

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Doru Alexandru Pleşea

2013-06-01

Full Text Available The mobile services are distinguished through their quality, either we speak about the way the client is approached and placed in the centre of the operator's actions, or about the services the client benefits in his capacity as a client. The Romanian mobile operators’ services have greatly evolved from their launch in 1997. Along these times, the mobile operators brought more value to these services, due to their need to meet the consumers' expectations with services of high quality and competitiveness. Usually the Romanian consumers place the price in the forefront of their service/mobile phone services acquisition, but an objective analyze of the quality of the mobile phone services has to take into account both technical aspects of the services and the interfacing services too. Therefore, this paper takes into account technical characteristics of the services such as national telephony coverage, data transmission services coverage, the signal quality, maximum speed of data transfer as well as related services such as distribution network, sales and support sales services, after-sales services, and range of available terminals. Based on mobile services comprehensive analysis made available to consumers by the major players on the Romanian market, this paper aims to highlight the main reasons of the consumers’ satisfaction and dissatisfaction.

Generating Ideas for New Mobile TV Services:Accepting and Socializing Mobile Television

OpenAIRE

Sørensen, Lene Tolstrup; Nicolajsen, Hanne Westh

2010-01-01

Mobile TV is still in its infancy in respect to identifying new services/content, which deploy the technology convergence of broadcasting, Internet and radio while satisfying the user with respect to interactivity, sociability and content, and at the same time fit the small screen of a mobile phone. This paper reports on a semi-field trial performed with a group of young, IT literate users provided with handheld devices and the possibility of watching mobile TV as a basis for creation of idea...

Designing a mobile augmented reality tool for the locative visualisation of biomedical knowledge.

Science.gov (United States)

Kilby, Jess; Gray, Kathleen; Elliott, Kristine; Waycott, Jenny; Sanchez, Fernando Martin; Dave, Bharat

2013-01-01

Mobile augmented reality (MAR) may offer new and engaging ways to support consumer participation in health. We report on design-based research into a MAR application for smartphones and tablets, intended to improve public engagement with biomedical research in a specific urban precinct. Following a review of technical capabilities and organizational and locative design considerations, we worked with staff of four research institutes to elicit their ideas about information and interaction functionalities of a shared MAR app. The results were promising, supporting the development of a prototype and initial field testing with these staff. Evidence from this project may point the way toward user-centred design of MAR services that will enable more widespread adoption of the technology in other healthcare and biomedical research contexts.

Providing Device Independence to Mobile Services

OpenAIRE

Nylander, Stina; Bylund, Markus

2002-01-01

People want user interfaces to services that are functional and well suited to the device they choose for access. To provide this, services must be able to offer device specific user interfaces for the wide range of devices available today. We propose to combine the two dominant approaches to platform independence, "Write Once, Run Every-where™" and "different version for each device", to create multiple device specific user interfaces for mobile services. This gives possibilities to minimize...

Perception Analysis of Desktop and Mobile Service Website

OpenAIRE

Khoiriyah, Rizqiyatul

2016-01-01

The research was conducted as a qualitative study of the website to deeper explore and examine the analysis of user perception of desktop and mobile website services. This research reviewed about user perception of desktop and mobile service website used by using qualitative methods adapted to WebQual and User Experience approach. This qualitative research refered to the theoretical reference written by Creswell (2014). The expected outcome is to know the user perceptions of the available ser...

Mobile Manufacturer or Service provider? An Empirical Study on Consumers’ Adoption Intention

OpenAIRE

Feng Hu; Xiaoyi Du; Yong Liu

2010-01-01

As mobile manufacturers today seek to attract consumers by increasingly integrating mobile services into their products, little research is available regarding whether and to what degree this new feature of mobile phone would motivate consumers’ purchase intention.Concerning m-learning, this study investigates the relationship among users’ intentions to adopt mobile service, service-enabled-phone as well as intention to pay for the new phone functionality. Based on 209 useful responses, this ...

Innovative Mobile Platform Developments for Electronic Services Design and Delivery

DEFF Research Database (Denmark)

Scupola, Ada

In the ever-growing world of technology, it is becoming more important to understand the developments of new electronic services and mobile applications. Innovative Mobile Platform Developments for Electronic Services Design, and Delivery is a comprehensive look at all aspects of production manag...

Location Systems An Introduction to the Technology Behind Location Awareness

CERN Document Server

LaMarca, Anthony

2008-01-01

Advances in electronic location technology and the coming of age of mobile computing have opened the door for location-aware applications to permeate all aspects of everyday life. Location is at the core of a large number of high-value applications ranging from the life-and-death context of emergency response to serendipitous social meet-ups. For example, the market for GPS products and services alone is expected to grow to US200 billion by 2015. Unfortunately, there is no single location technology that is good for every situation and exhibits high accuracy, low cost, and universal coverage.

Mobile Phone Applications in Academic Library Services: A Students' Feedback Survey

Science.gov (United States)

Karim, Nor Shahriza Abdul; Darus, Siti Hawa; Hussin, Ramlah

2006-01-01

Purpose: This study seeks to explore the utilization of mobile phone services in the educational environment, explore the nature of mobile phone use among university students, and investigate the perception of university students on mobile phone uses in library and information services. Design/methodology/approach: The study used a review of…

The Viability of Mobile Services (SMS and Cell Broadcast in Emergency Management Solutions: An Exploratory Study

Directory of Open Access Journals (Sweden)

Mahmoud Al-dalahmeh

2018-01-01

Full Text Available In this paper the path forward in location-based mobile phone warning systems is given against a concise backdrop of their deployment worldwide. Of relevance here is (i how the systems are implemented using legislation, contractual service level agreement instruments or a hybrid approach, (ii whether or not governments who deploy these systems will carry the cost of the deployment during an emergency or disaster, and (iii whether or not carrier participation is mandated. Of particular importance are also the underlying technologies of this kind of emergency systems. To date, the short message service and cell broadcast service have been the main technologies to be utilised by governments in the application of location-based services in modern emergency management solutions. However, these technologies will most certainly be superseded by newer, more powerful capabilities. A comprehensive list of requirements for the future location-based emergency systems is presented also in this paper. In essence, these are recommendations to be adhered to if robust solutions using new technologies are to be deployed in a nation state.

Effective Testing Principles for the Mobile Data Services Applications

NARCIS (Netherlands)

Srirama, S.; Kakumani, R.; Aggarwal, A.; Pawar, P.

Wireless communication technologies like GPRS, UMTS and WLAN, combined with the availability of high-end, affordable mobile devices enable the development of the advanced and innovative mobile services. Devices such as mobile phones and Personal Digital Assistants let the users access a wide range

Toward Mobile Web 2.0-based business methods: Collaborative QoS-information sharing for mobile service users

NARCIS (Netherlands)

Wac, K.E.; Bults, Richard G.A.; van Beijnum, Bernhard J.F.; Chen, Hong; Konstantas, D.; Head, M.; Li, Eldon

2009-01-01

Mobile service providers (MoSPs) emerge, driven by the ubiquitous availability of mobile devices and wireless communication infrastructures. MoSPs’ customers satisfaction and consequently their revenues, largely depend on the quality of service (QoS) provided by wireless network providers (WNPs)

What is 5G? Emerging 5G Mobile Services and Network Requirements

Directory of Open Access Journals (Sweden)

Heejung Yu

2017-10-01

Full Text Available In this paper, emerging 5G mobile services are investigated and categorized from the perspective of not service providers, but end-users. The development of 5G mobile services is based on an intensive analysis of the global trends in mobile services. Additionally, several indispensable service requirements, essential for realizing service scenarios presented, are described. To illustrate the changes in societies and in daily life in the 5G era, five megatrends, including the explosion of mobile data traffic, the rapid increase in connected devices, everything on the cloud, hyper-realistic media for convergence services and knowledge as a service enabled by big-data analysis, are examined. Based on such trends, we classify the new 5G services into five categories in terms of the end-users’ experience as follows: immersive 5G services, intelligent 5G services, omnipresent 5G services, autonomous 5G services and public 5G services. Moreover, several 5G service scenarios in each service category are presented, and essential technical requirements for realizing the aforementioned 5G services are suggested, along with a competitiveness analysis on 5G services/devices/network industries and the current condition of 5G technologies.

20 CFR 401.200 - Blood donor locator service.

Science.gov (United States)

2010-04-01

... 20 Employees' Benefits 2 2010-04-01 2010-04-01 false Blood donor locator service. 401.200 Section... AND INFORMATION Disclosure of Official Records and Information § 401.200 Blood donor locator service... donors whose blood donations show that they are or may be infected with the human immunodeficiency virus...

47 CFR 80.333 - Stations in the maritime mobile-satellite service.

Science.gov (United States)

2010-10-01

... SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Safety Watch Requirements and Procedures Distress, Alarm, Urgency and Safety Procedures § 80.333 Stations in the maritime mobile-satellite service. The... 47 Telecommunication 5 2010-10-01 2010-10-01 false Stations in the maritime mobile-satellite...

Smartphones as locative media

CERN Document Server

Frith, Jordan

2015-01-01

Smartphone adoption has surpassed 50% of the population in more than 15 countries, and there are now more than one million mobile applications people can download to their phones. Many of these applications take advantage of smartphones as locative media, which is what allows smartphones to be located in physical space. Applications that take advantage of people's location are called location-based services, and they are the focus of this book. Smartphones as locative media raise important questions about how we understand the complicated relationship between the Internet and physical space

Customer satisfaction with mobile operators’ services in Lithuanian rural areas

OpenAIRE

Pilelienė, Lina; Grigaliūnaitė, Viktorija

2017-01-01

In tough competitive conditions of Lithuanian mobile services market, customer satisfaction becomes one of the most important factors for customer retention and attraction. Lithuanian mobile market can be described as being in a maturity stage of its life-cycle: the prices and services of different mobile operators are quite similar. However, the network coverage and signal strength differs – main differences can be observed in rural areas of the country. Therefore, the scientific...

Mobile location with NLOS identification and mitigation based on modified Kalman filtering.

Science.gov (United States)

Ke, Wei; Wu, Lenan

2011-01-01

In order to enhance accuracy and reliability of wireless location in the mixed line-of-sight (LOS) and non-line-of-sight (NLOS) environments, a robust mobile location algorithm is presented to track the position of a mobile node (MN). An extended Kalman filter (EKF) modified in the updating phase is utilized to reduce the NLOS error in rough wireless environments, in which the NLOS bias contained in each measurement range is estimated directly by the constrained optimization method. To identify the change of channel situation between NLOS and LOS, a low complexity identification method based on innovation vectors is proposed. Numerical results illustrate that the location errors of the proposed algorithm are all significantly smaller than those of the iterated NLOS EKF algorithm and the conventional EKF algorithm in different LOS/NLOS conditions. Moreover, this location method does not require any statistical distribution knowledge of the NLOS error. In addition, complexity experiments suggest that this algorithm supports real-time applications.

76 FR 75523 - Vessel Monitoring Systems; Approved Mobile Transmitting Units and Communications Service...

Science.gov (United States)

2011-12-02

... Monitoring Systems; Approved Mobile Transmitting Units and Communications Service Providers for Use in... relevant features of the enhanced mobile transmitting unit (E-MTU) VMS and communications service providers... with the Orbcomm mobile communications provider service. Skymate can be reached at 866-SKYMATE and...

Mobile cloud networking: mobile network, compute, and storage as one service on-demand

NARCIS (Netherlands)

Jamakovic, Almerima; Bohnert, Thomas Michael; Karagiannis, Georgios; Galis, A.; Gavras, A.

2013-01-01

The Future Communication Architecture for Mobile Cloud Services: Mobile Cloud Networking (MCN)1 is a EU FP7 Large scale Integrating Project (IP) funded by the European Commission. MCN project was launched in November 2012 for the period of 36 month. In total top-tier 19 partners from industry and

A mobile network-based multimedia teleconference system for homecare services.

Science.gov (United States)

Zhang, Zhaomin; He, Aiguo; Wei, Daming

2008-03-01

Because most research and development for homecare services have focused on providing connections between home and service centers, the goal of the present work is to develop techniques and create realtime communications to connect service centers and homecare workers in mobile environments. A key technical issue for this research is how to overcome the limitation of bandwidth in mobile media and networks. An effort has been made to balance performance of communication and basic demands in telehealth through optimized system design and technical implementation. Implementations using third generation (3G) Freedom Of Mobile multimedia Access (FOMA) and Personal Handyphone System (PHS) were developed and evaluated. We conclude that the system we developed based on 3G FOMA provides sufficient and satisfactory functions for use in homecare services.

Exploring the influence of reference situations and reference pricing on mobile service user behaviour

DEFF Research Database (Denmark)

Blechar, Jennifer; Constantiou, Ioanna; Damsgaard, Jan

2006-01-01

Despite widespread proliferation of mobile devices providing access to a variety of advanced and data-rich services, adoption of those services remains low in most of the Western world. Thus, research related to the acceptance and use of mobile technology and services continues to develop. Tradit...... situations and reference prices. The article suggests that users cognitive referencing is an influential factor that must be considered when exploring their usage behaviour in the mobile services market.......Despite widespread proliferation of mobile devices providing access to a variety of advanced and data-rich services, adoption of those services remains low in most of the Western world. Thus, research related to the acceptance and use of mobile technology and services continues to develop....... Traditional research in this domain has been useful for exploring adoption and use related to individual technologies or novel services. However, our research efforts indicate that users often reflect on former experiences with similar technologies or services when choosing mobile services. This suggests...

Dynamic Adaptive Policymaking for implementing Mobility as a Service (MAAS)

NARCIS (Netherlands)

Jittrapirom, P.; Marchau, V.A.W.J.; Meurs, H.

2017-01-01

Mobility as a Service (MaaS) is an emerging innovative transport concept. It offers its users a tailored transport service package, similar to a mobile phone package, that provides a seamless journey within their city-region. Proponents believe that MaaS can provide a high-level of convenience that

Mobile location-based advertising: how information privacy concerns influence consumers' attitude and acceptance

NARCIS (Netherlands)

Limpf, N.; Voorveld, H.A.M.

2015-01-01

This study investigates the effect of information privacy concerns on consumers' attitude toward and acceptance of mobile location-based advertising (LBA), and the moderating role of the type of mobile LBA, namely push versus pull. Using an online experiment (N = 224), it was found that consumers'

47 CFR 22.409 - Developmental authorization for a new Public Mobile Service or technology.

Science.gov (United States)

2010-10-01

... Mobile Service or technology. 22.409 Section 22.409 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES PUBLIC MOBILE SERVICES Developmental Authorizations § 22.409 Developmental authorization for a new Public Mobile Service or technology. The FCC may grant applications for...

Routing Service Quality—Local Driver Behavior Versus Routing Services

DEFF Research Database (Denmark)

Ceikute, Vaida; Jensen, Christian S.

2013-01-01

of the quality of one kind of location-based service, namely routing services. Specifically, the paper presents a framework that enables the comparison of the routes provided by routing services with the actual driving behaviors of local drivers. Comparisons include route length, travel time, and also route...... popularity, which are enabled by common driving behaviors found in available trajectory data. The ability to evaluate the quality of routing services enables service providers to improve the quality of their services and enables users to identify the services that best serve their needs. The paper covers......Mobile location-based services is a very successful class of services that are being used frequently by users with GPS-enabled mobile devices such as smartphones. This paper presents a study of how to exploit GPS trajectory data, which is available in increasing volumes, for the assessment...

Integration of Commercial Mobile Satellite Services into Naval Communications

National Research Council Canada - National Science Library

Stone, Cary

1997-01-01

Mobile Satellite Services (MSS) need to be integrated into Naval Communications. DoD SATCOM military owned systems fall well short of meeting DoD SATCOM requirements in general and mobile SATCOM specifically...

Users Behavior in Location-Aware Services: Digital Natives versus Digital Immigrants

Directory of Open Access Journals (Sweden)

Marco Furini

2014-01-01

Full Text Available Location-aware services may expose users to privacy risks as they usually attach user’s location to the generated contents. Different studies have focused on privacy in location-aware services, but the results are often conflicting. Our hypothesis is that users are not fully aware of the features of the location-aware scenario and this lack of knowledge affects the results. Hence, in this paper we present a different approach: the analysis is conducted on two different groups of users (digital natives and digital immigrants and is divided into two steps: (i understanding users’ knowledge of a location-aware scenario and (ii investigating users’ opinion toward location-aware services after showing them an example of an effective location-aware service able to extract personal and sensitive information from contents publicly available in social media platforms. The analysis reveals that there is relation between users’ knowledge and users’ concerns toward privacy in location-aware services and also reveals that digital natives are more interested in the location-aware scenario than digital immigrants. The analysis also discloses that users’ concerns toward these services may be ameliorated if these services ask for users’ authorization and provide benefits to users. Other interesting findings allow us to draw guidelines that might be helpful in developing effective location-aware services.

Business Models for Mobile Media Services : A case study in China mainland market

OpenAIRE

Huang, Jin

2012-01-01

Mobile media OTT service such as mobile music and mobile video is believed to be the next big revenue driver for mobile operator’s mobile broadband business. The media industry is willing to take mobile distribution channel to increase the content value. In Europe, there are already several successful cooperation cases between online media service provider and mobile operator, such as Spotify and Telia. However, with more complicated market and business environment in China, the mobile media ...

Commercial Mobile Alert Service (CMAS) Scenarios

Science.gov (United States)

2012-05-01

Commercial Mobile Alert Service (CMAS) Scenarios The WEA Project Team May 2012 SPECIAL REPORT CMU/SEI-2012-SR-020 CERT® Division, Software ...Homeland Security under Contract No. FA8721-05-C-0003 with Carnegie Mellon University for the operation of the Software Engineering Institute, a federally...DISTRIBUTES IT “AS IS.” References herein to any specific commercial product, process, or service by trade name, trade mark, manufacturer, or otherwise

The mobile phone in Africa: Providing services to the masses

CSIR Research Space (South Africa)

Botha, Adèle

2010-08-31

Full Text Available and operational considerations associated with creating a middleware platform for mobile services. The platform should be able to support different mobile paradigms (voice, text, multimedia, mobile web, applications) using a variety of communications protocols...

Service Demand Discovery Mechanism for Mobile Social Networks.

Science.gov (United States)

Wu, Dapeng; Yan, Junjie; Wang, Honggang; Wang, Ruyan

2016-11-23

In the last few years, the service demand for wireless data over mobile networks has continually been soaring at a rapid pace. Thereinto, in Mobile Social Networks (MSNs), users can discover adjacent users for establishing temporary local connection and thus sharing already downloaded contents with each other to offload the service demand. Due to the partitioned topology, intermittent connection and social feature in such a network, the service demand discovery is challenging. In particular, the service demand discovery is exploited to identify the best relay user through the service registration, service selection and service activation. In order to maximize the utilization of limited network resources, a hybrid service demand discovery architecture, such as a Virtual Dictionary User (VDU) is proposed in this paper. Based on the historical data of movement, users can discover their relationships with others. Subsequently, according to the users activity, VDU is selected to facilitate the service registration procedure. Further, the service information outside of a home community can be obtained through the Global Active User (GAU) to support the service selection. To provide the Quality of Service (QoS), the Service Providing User (SPU) is chosen among multiple candidates. Numerical results show that, when compared with other classical service algorithms, the proposed scheme can improve the successful service demand discovery ratio by 25% under reduced overheads.

Understanding Spatiotemporal Patterns of Human Convergence and Divergence Using Mobile Phone Location Data

Directory of Open Access Journals (Sweden)

Xiping Yang

2016-09-01

Full Text Available Investigating human mobility patterns can help researchers and agencies understand the driving forces of human movement, with potential benefits for urban planning and traffic management. Recent advances in location-aware technologies have provided many new data sources (e.g., mobile phone and social media data for studying human space-time behavioral regularity. Although existing studies have utilized these new datasets to characterize human mobility patterns from various aspects, such as predicting human mobility and monitoring urban dynamics, few studies have focused on human convergence and divergence patterns within a city. This study aims to explore human spatial convergence and divergence and their evolutions over time using large-scale mobile phone location data. Using a dataset from Shenzhen, China, we developed a method to identify spatiotemporal patterns of human convergence and divergence. Eight distinct patterns were extracted, and the spatial distributions of these patterns are discussed in the context of urban functional regions. Thus, this study investigates urban human convergence and divergence patterns and their relationships with the urban functional environment, which is helpful for urban policy development, urban planning and traffic management.

Using web-sources for location based systems on mobile phones

NARCIS (Netherlands)

Pannevis, M.; Marx, M.

2008-01-01

The paper describes the implementation of a context aware location and time based system on a normal mobile phone, with a minimum of requirements (Bluetooth, Internet access, Java ME, and a simple webbrowser). We can answer the following queries based on data crawled from the web and enriched with

Measuring the post-adoption customer perception of mobile banking services.

Science.gov (United States)

Yu, Tai-Kuei; Fang, Kwoting

2009-02-01

With liberalization and internalization in the financial market and progress in information technology, banks face dual competitive pressures to provide service quality and administrative efficiency. That these recent developments are fueled by technology might misleadingly suggest that the adoption of mobile banking is largely based on technological criteria. The purpose of this study is to establish a better measurement model for postadoption user perception of mobile banking services. Based on 458 valid responses of mobile banking users, the results show that the instrument, consisting of 21 items and 6 factors, is a reliable, valid, and useful measurement for assessing the postadoption perception of mobile banking.

A General Probability Formula of the Number of Location Areas' Boundaries Crossed by a Mobile Between Two Successive Call Arrivals

Institute of Scientific and Technical Information of China (English)

Yi-Hua Zhu; Ding-Hua Shi; Yong Xiong; Ji Gao; He-Zhi Luo

2004-01-01

Mobility management is a challenging topic in mobile computing environment. Studying the situation of mobiles crossing the boundaries of location areas is significant for evaluating the costs and performances of various location management strategies. Hitherto, several formulae were derived to describe the probability of the number of location areas' boundaries crossed by a mobile. Some of them were widely used in analyzing the costs and performances of mobility management strategies. Utilizing the density evolution method of vector Markov processes, we propose a general probability formula of the number of location areas' boundaries crossed by a mobile between two successive calls. Fortunately, several widely-used formulae are special cases of the proposed formula.

Improvement Schemes for Indoor Mobile Location Estimation: A Survey

Directory of Open Access Journals (Sweden)

Jianga Shang

2015-01-01

Full Text Available Location estimation is significant in mobile and ubiquitous computing systems. The complexity and smaller scale of the indoor environment impose a great impact on location estimation. The key of location estimation lies in the representation and fusion of uncertain information from multiple sources. The improvement of location estimation is a complicated and comprehensive issue. A lot of research has been done to address this issue. However, existing research typically focuses on certain aspects of the problem and specific methods. This paper reviews mainstream schemes on improving indoor location estimation from multiple levels and perspectives by combining existing works and our own working experiences. Initially, we analyze the error sources of common indoor localization techniques and provide a multilayered conceptual framework of improvement schemes for location estimation. This is followed by a discussion of probabilistic methods for location estimation, including Bayes filters, Kalman filters, extended Kalman filters, sigma-point Kalman filters, particle filters, and hidden Markov models. Then, we investigate the hybrid localization methods, including multimodal fingerprinting, triangulation fusing multiple measurements, combination of wireless positioning with pedestrian dead reckoning (PDR, and cooperative localization. Next, we focus on the location determination approaches that fuse spatial contexts, namely, map matching, landmark fusion, and spatial model-aided methods. Finally, we present the directions for future research.

An Improved Privacy-Preserving Framework for Location-Based Services Based on Double Cloaking Regions with Supplementary Information Constraints

Directory of Open Access Journals (Sweden)

Li Kuang

2017-01-01

Full Text Available With the rapid development of location-based services in the field of mobile network applications, users enjoy the convenience of location-based services on one side, while being exposed to the risk of disclosure of privacy on the other side. Attacker will make a fierce attack based on the probability of inquiry, map data, point of interest (POI, and other supplementary information. The existing location privacy protection techniques seldom consider the supplementary information held by attackers and usually only generate single cloaking region according to the protected location point, and the query efficiency is relatively low. In this paper, we improve the existing LBSs system framework, in which we generate double cloaking regions by constraining the supplementary information, and then k-anonymous task is achieved by the cooperation of the double cloaking regions; specifically speaking, k dummy points of fixed dummy positions in the double cloaking regions are generated and the LBSs query is then performed. Finally, the effectiveness of the proposed method is verified by the experiments on real datasets.

Authenticated Location-Aware Publish/Subscribe Services in Untrusted Outsourced Environments

Directory of Open Access Journals (Sweden)

Han Yan

2017-01-01

Full Text Available Location-aware publish/subscribe is an important location-based service based on server-initiated model. Often times, the owner of massive spatio-textual messages and subscriptions outsources its location-aware publish/subscribe services to a third-party service provider, for example, cloud service provider, who is responsible for delivering messages to their relevant subscribers. The issue arising here is that the messages delivered by the service provider might be tailored for profit purposes, intentionally or not. Therefore, it is essential to develop mechanisms which allow subscribers to verify the correctness of the messages delivered by the service provider. In this paper, we study the problem of authenticating messages in outsourced location-aware publish/subscribe services. We propose an authenticated framework which not only can deliver the messages efficiently but also can make the subscribers’ authentication available with low cost. Extensive experiments on a real-world dataset demonstrate the effectiveness and efficiency of our proposed authenticated framework.

Insights into the Development of the Market of Mobile Marketing Services in Romania

Directory of Open Access Journals (Sweden)

Carmen Balan

2012-11-01

Full Text Available The article aims to explore the present evolution stage of the mobile marketing service market in Romania. Central part of the article is the exploratory research based on in-depth interviews with major specialists in mobile marketing services. The main objectives of the research were to study: the offering of mobile marketing agencies in Romania; most used mobile marketing instruments; market changes generated by the advent of smartphones; perception of competition among Romanian mobile marketing agencies. This exploratory approach is the first multi-faceted qualitative study of the supply side of the Romanian market of mobile marketing services which is presently at the border between emergence and growth.

Using web-sources for location based systems on mobile phones

OpenAIRE

Pannevis, M.; Marx, M.

2008-01-01

The paper describes the implementation of a context aware location and time based system on a normal mobile phone, with a minimum of requirements (Bluetooth, Internet access, Java ME, and a simple webbrowser). We can answer the following queries based on data crawled from the web and enriched with location coordinates: • Where are my friends? • What movies are playing, right here, right now? • I need to park my car. Where is the closest parking lot with free space? • What is a good place to h...

A Wireless Location System in LTE Networks

OpenAIRE

Liu, Qi; Hu, Rongyi; Liu, Shan

2017-01-01

Personal location technologies are becoming important with the rapid development of Mobile Internet services. In traditional cellular networks, the key problems of user location technologies are high-precision synchronization among different base stations, inflexible processing resources, and low accuracy positioning, especially for indoor environment. In this paper, a new LTE location system in Centralized Radio Access Network (C-RAN) is proposed, which makes channel and location measurement...

An M-Learning Content Recommendation Service by Exploiting Mobile Social Interactions

Science.gov (United States)

Chao, Han-Chieh; Lai, Chin-Feng; Chen, Shih-Yeh; Huang, Yueh-Min

2014-01-01

With the rapid development of the Internet and the popularization of mobile devices, participating in a mobile community becomes a part of daily life. This study aims the influence impact of social interactions on mobile learning communities. With m-learning content recommendation services developed from mobile devices and mobile network…

Cross-Cultural Design of Mobile Mathematics Learning Service for South African Schools

Science.gov (United States)

Walsh, Tanja; Vainio, Teija; Varsaluoma, Jari

2014-01-01

In the era of mobile devices and services, researchers in the educational domain have been interested in how to support learning with mobile technology in both local and global contexts. Recent human-computer interaction (HCI) research in the educational domain has particularly focused on how to develop mobile learning services and how to evaluate…

Latent Feature Models for Uncovering Human Mobility Patterns from Anonymized User Location Traces with Metadata

KAUST Repository

Alharbi, Basma Mohammed

2017-01-01

In the mobile era, data capturing individuals’ locations have become unprecedentedly available. Data from Location-Based Social Networks is one example of large-scale user-location data. Such data provide a valuable source for understanding patterns

Service Locator - Family Planning Title X

Data.gov (United States)

U.S. Department of Health & Human Services — This locator tool will help you find Title X family planning centers that provide high quality and cost-effective family planning and related preventive health...

Locating Mobility: Practices of co-presence and the persistence of the postal metaphor in SMS/ MMS mobile phone customization in Melbourne

Directory of Open Access Journals (Sweden)

Larissa Hjorth

2005-01-01

Full Text Available One of the marked features of ICT’s (Information and Communication Technologies mobility (literal and electronic is the role of customization in location (Castells, 2001; Manovich, 2001. When we think of "customizing" mobile phones we often summon up an image of techno-savvy places such as Tokyo where the outside of the mobile phone (keitai is adorned with a plethora of cute (kawaii characters in, for example, the style of Hello Kitty. Indeed, much of the Asia-Pacific region seems characterized by seemingly every form of mobile phone adornment. One could be mistaken, then, for thinking that Melbourne is out of place in the mobile flows of the region. However, Melbourne demonstrates that customization can also occur inside the mobile phone. Customization is not just a matter of wallpapers and ringtones. It is also the case that customizing of applications such as SMS (Short Message Service speaks of specific processes of subjectivity, cultural capital (Bourdieu, 1984[1979]; McVeigh, 2003 and locality (Massey, 1993. Such internal customization operates as an important mode for users to become active producers in the extension of conventions of the emerging genre.Once just an application used for its simplicity and affordability, SMS has grown to be an enduring mode of mobile phone communication (Goggin, 2004. The resilience and evolution of SMS practices has resulted in it surpassing the role of a "making-do" application; SMS has grown to accommodate particular modes of etiquette and to signify gestures of intimacy. I argue that SMS customization is central to a personalizing and localizing of remediated technologies (Bolter and Grusin, 1999 that is best understood as a persistence of the postal metaphor. As a remediated genre reminiscent of such genres as the 18th century visiting card (Milne, 2004, SMS and its practices of co-presence need to be understood in terms of earlier genres of telepresence and intimacy . In order to discuss some of

Examining the Adoption and Use of Mobile Data Services: A Consumer Behavior Analysis

DEFF Research Database (Denmark)

Tobbin, Peter Ebo

to the understanding of mobile data services acceptance, use, and the process by which consumers make the decision to adopt technology in their everyday life. It introduces an integrated mobile money adoption model (iMoMAM) which provides an understanding of consumers' socially influenced decision processes that guide...... the decision to adopt and use mobile money services. It also provides a new perspective to the determinants of end-user technology appropriation decision making. It was observed that an end-user's technology appropriation is determined by the public meaning of the technology, the end-user's private meaning......The increasing penetration of mobile phones and mobile services even in poorer communities in the developing world (where the number of mobile phones has exceeded that of bank accounts) has led to an ever-larger number of services aimed at providing development in various sectors of the economies...

In-service and Pre-service Middle School Mathematics Teachers' Attitudes and Decisions Regarding Teaching Mathematics Using Mobile Phones

Directory of Open Access Journals (Sweden)

Wajeeh M. Daher

2014-10-01

Full Text Available Several researches examined students' mathematics learning using mobile phones, while very few researches examined mathematics teaching using this new educational tool. This research attempts to analyze in-service and pre-service teachers' attitudes and decisions regarding mathematics teaching with mobile phones using activity theory. More specifically, three case studies are analyzed in this research: One concerns an in-service teacher who used mobile phones in her class, the second case study involves a pre-service teacher who collaborated with the in-service teacher to teach mathematics lessons using mobile phones, and the third case study is about 15 pre-service teachers who were observers of the experiment but did not use mobile phones in their teaching. We held one-hour semi-structured interviews with the in-service teacher, with the leading pre-service teacher and with the group of other observer pre-service teachers. This happened three times during the academic year: at the beginning of the experiment, after three months and after it ended. The research findings indicate that different factors have an impact on the attitudes and decisions of the teacher: history of the teacher using technologies in teaching, perceptions of the teacher using technologies in teaching, community’s teacher, rules regulating the use of technologies in teaching mathematics, and division of labor. For example, questions as to who decides which technologies to use in the classroom and who should prepare the learning material for the students. Contradictions were identified in mathematics teachers' activity when utilizing mobile phones in their teaching. These contradictions hinder or slow such utilization. Community, especially its leading members, mediated and helped overcome the activity contradictions that arose throughout the experiment regarding the teaching processes in and/or out of the mathematics classroom.

Ethnic and locational differences in ecosystem service values

DEFF Research Database (Denmark)

Cuni Sanchez, Aida; Pfeifer, Marion; Marchant, Rob

2016-01-01

location. Preferred plant species for food, fodder, medicine resources, poles and firewood followed the same pattern. Our results showed that ethnicity and location affect ecosystem services' identification and importance ranking. This should be taken into account by decision-makers, e.g. as restricted......Understanding cultural preferences toward different ecosystem services is of great importance for conservation and development planning. While cultural preferences toward plant species have been long studied in the field of plant utilisation, the effects of ethnicity on ecosystem services...... identification and valuation has received little attention. We assessed the effects of ethnicity toward different ecosystem services at three similar forest islands in northern Kenya inhabited by Samburu and Boran pastoralists. Twelve focus groups were organised in each mountain, to evaluate the ecosystem...

Audience awareness and use of Mobile Authentication Service ...

African Journals Online (AJOL)

Audience awareness and use of Mobile Authentication Service (MAS) in identifying fake and substandard drugs in Nigeria. ... Based on the research findings, this study therefore recommends an increased level of awareness through a multi-media approach, improved network services, as well as getting all drug ...

Mobile evolution insights on connectivity and service

CERN Document Server

Thalanany, Sebastian

2015-01-01

The purpose of this book is to provide information and guidelines pertaining to the strategies and technologies associated with the next-generation mobile ecosystem. The intersection of human communications, next-generation mobile technologies and IP multimedia services demand an identification and distillation of the characteristics of both the human dimension and the technology dimension to examine the unique enabling considerations in the formulation of a vision and a strategy that are relevant for communities, businesses and leadership.

Spatio-Temporal Data Mining for Location-Based Services

DEFF Research Database (Denmark)

Gidofalvi, Gyozo

. The objectives of the presented thesis are three-fold. First, to extend popular data mining methods to the spatio-temporal domain. Second, to demonstrate the usefulness of the extended methods and the derived knowledge in promising LBS examples. Finally, to eliminate privacy concerns in connection with spatio......-temporal data mining by devising systems for privacy-preserving location data collection and mining.......Location-Based Services (LBS) are continuously gaining popularity. Innovative LBSes integrate knowledge about the users into the service. Such knowledge can be derived by analyzing the location data of users. Such data contain two unique dimensions, space and time, which need to be analyzed...

Location-Based Rainfall Nowcasting Service for Public

Science.gov (United States)

Woo, Wang-chun

2013-04-01

The Hong Kong Observatory has developed the "Short-range Warning of Intense Rainstorms in Localized Systems (SWIRLS)", a radar-based rainfall nowcasting system originally to support forecasters in rainstorm warning and severe weather forecasting such as hail, lightning and strong wind gusts in Hong Kong. The system has since been extended to provide rainfall nowcast service direct for the public in recent years. Following the launch of "Rainfall Nowcast for the Pearl River Delta Region" service provided via a Geographical Information System (GIS) platform in 2008, a location-based rainfall nowcast service served through "MyObservatory", a smartphone app for iOS and Android developed by the Observatory, debuted in September 2012. The new service takes advantage of the capability of smartphones to detect own locations and utilizes the quantitative precipitation forecast (QPF) from SWIRLS to provide location-based rainfall nowcast to the public. The conversion of radar reflectivity data (at 2 or 3 km above ground) to rainfall in SWIRLS is based on the Z-R relationship (Z=aRb) with dynamical calibration of the coefficients a and b determined using real-time rain gauge data. Adopting the "Multi-scale Optical-flow by Variational Analysis (MOVA)" scheme to track the movement of radar echoes and Semi-Lagrangian Advection (SLA) scheme to extrapolate their movement, the system is capable of producing QPF for the next six hours in a grid of 480 x 480 that covers a domain of 256 km x 256 km once every 6 minutes. Referencing the closest point in a resampled 2-km grid over the territory of Hong Kong, a prediction as to whether there will be rainfall exceeding 0.5 mm in every 30 minute intervals for the next two hours at users' own or designated locations are made available to the users in both textual and graphical format. For those users who have opted to receive notifications, a message would pop up on the user's phone whenever rain is predicted in the next two hours in a user

Micro Mobility Marketing

DEFF Research Database (Denmark)

Hosbond, Jens Henrik; Skov, Mikael B.

2008-01-01

, in our case a medium-sized retail supermarket. Two prototypes based on push and pull marketing strategies are implemented and evaluated. Taking outset in a synthesis of central issues in contemporary research on mobile marketing, we discuss their role in micro mobility marketing to point to similarities......Mobile marketing refers to marketing of services or goods using mobile technology and mobile marketing holds potentially great economical opportunities. Traditionally, mobile marketing has been viewed as mobility in the large taking place virtually anywhere, anytime. Further, research shows...... considerable number of studies on push-based SMS mobile marketing campaigns. This paper explores a related yet different form of mobile marketing namely micro mobility marketing. Micro mobility marketing denotes mobility in the small, meaning that promotion of goods takes place within a circumscribed location...

Landmarks GIScience for intelligent services

CERN Document Server

Richter, Kai-Florian

2014-01-01

Summarizes the latest studies on car navigation services, mobile location-based services, museum guides, tourist guides, public transport planners and recent voice interfaces to mobile devices Broadens understanding of spatial applications for smart phones Contains numerous exercises and examples to reinforce concepts

Identifying Usability and Productivity Dimensions for Measuring the Success of Mobile Business Services

Directory of Open Access Journals (Sweden)

Maiju Vuolle

2008-01-01

Full Text Available This paper reviews existing measures used for evaluating the usability of information systems and those used for evaluating the level of the productivity of a company. We discuss the usefulness of the existing measures in the mobile business context, where both mobility and work-context pose specific demands for the mobile business services. The review showed that the existing measures rarely consider the great contextual variation caused by the mobility of the services and the demands this poses on usability; which, in turn, affects productivity. To build a measurement tool that better meets the requirements of mobile business services, we completed case studies on two mobile business services, one used in passenger transport and the other in construction sites. Based on the understanding gained from the case studies, we propose a list of dimensions and items addressing both usability and productivity aspects that work as the basis for a multidisciplinary measurement tool.

Location-Based Mapping Services to Support Collaboration in Spatially Distributed Workgroups

Science.gov (United States)

Meyer, Eike Michael; Wichmann, Daniel; Büsch, Henning; Boll, Susanne

Mobile devices and systems reached almost every part of our daily life. Following the mobile computing trend, also business logics of distributed, cooperative applications started to move into the mobile client applications. With this shift, the cooperation aspect may also exploit the user’s location and situation context and capabilities of the mobile device and integrate it into the actual cooperation and collaboration. In this paper, we present an approach for a Collaborative Map that exploits the spatial context of the member of a distributed group as a means to visualize and provide collaboration functionality. Then, a number of location-related cooperation methods become feasible such as getting an overview of the spatial distribution of the team members, identify an ad-hoc meeting place nearby, or chat with a group member who has a certain expertise in his or her profile. With CoMa, we move from standard collaboration tools that marginally consider spatial information towards context-aware mobile collaborative systems that can support a wide range of applications such as emergency response, maintenance work or event organization where human resources have to be coordinated in a spatial context and tasks need to be assigned dynamically depending on capabilities and situation context.

Intelligent Position Aware Mobile Services for Seamless and Non-Intrusive Clocking-in

Directory of Open Access Journals (Sweden)

Sergio Ríos Aguilar

2014-03-01

Full Text Available This paper analyzes the viability of the use of employees smartphones as a valid tool for companies in order to conduct presence control. A Mobile Location Aware Information System is also proposed for a non intrusive Presence Control using exclusively terminal-based reactive location technologies, meeting cost minimization, and universal access criteria. The focus is providing trust to the employees, so that they feel safe and in control of when the location data is gathered while satisfying the control needs of the employer. LAMS platform is a state-of-the-art framework for synchronous mobile location-aware content personalization, using A-GPS terminal-based/network assisted mobile positioning techniques and UAProf data processing at the origin server.

Location-Based Services and Privacy in Airports

DEFF Research Database (Denmark)

Hansen, John Paulin; Alapetite, Alexandre; Andersen, Henning Boje

2009-01-01

This paper reports on a study of privacy concerns related to location-based services in an airport, where users who volunteer for the service will be tracked for a limited period and within a limited area. Reactions elicited from travellers at a field trial showed 60% feeling to some or to a larg...

The Challenges of Designing Digital Services for Multiple Mobile Platforms

DEFF Research Database (Denmark)

Ghazawneh, Ahmad

2016-01-01

on a multiple case study of three mobile application development firms from Sweden, Denmark and Norway, we synthesize the digital service design taxonomy to understand the challenges faced by third-party developers. Our study identifies a set of challenges in four different levels: user level, platform level...... to tap into and join the digital ecosystem. However, while there is an emerging literature on designing digital services, little empirical evidence exists about challenges faced by third-party developers while designing digital services, and in particular for multiple mobile platforms. Drawing......The value of digital services is increasingly recognized by owners of digital platforms. These services have central role in building and sustaining the business of the digital platform. In order to sustain the design of digital services, owners of digital platforms encourage third-party developers...

Knowledge Creation Through Mobile Social Networks and Its Impact on Intentions to Use Innovative Mobile Services

NARCIS (Netherlands)

Kleijnen, M.H.P.; Lievens, A.; de Ruyter, K.; Wetzels, M.G.M.

2009-01-01

Taking a social network perspective, the authors investigate consumers' intentions to use innovative mobile services. With a sociometric survey, they empirically assess how consumers integrate and connect through mobile social networks, as well as how their network position influences knowledge

An Exploration of Pre-Service Teachers' Intention to Use Mobile Devices for Teaching

Science.gov (United States)

Hur, Jung Won; Shen, Ying W.; Kale, Ugur; Cullen, Theresa A.

2015-01-01

Teachers in the US have been increasingly adopting mobile devices for teaching, but little research has examined how pre-service teachers perceive mobile device integration in classrooms. To address this issue, the study developed a research model that explained factors affecting pre-service teachers' intention to use mobile devices and the…

Enhanced Internet Mobility and Privacy Using Public Cloud

Directory of Open Access Journals (Sweden)

Ping Zhang

2017-01-01

Full Text Available Internet mobile users are concerned more and more about their privacy nowadays as both researches and real world incidents show that leaking of communication and location privacy can lead to serious consequence, and many research works have been done to anonymize individual user from aggregated location data. However, just the communication itself between the mobile users and their peers or website could collect considerable privacy of the mobile users, such as location history, to other parties. In this paper, we investigated the potential privacy risk of mobile Internet users and proposed a scalable system built on top of public cloud services that can hide mobile user’s network location and traffic from communication peers. This system creates a dynamic distributed proxy network for each mobile user to minimize performance overhead and operation cost.

An Agent-Based Model for the Development of Intelligent Mobile Services

NARCIS (Netherlands)

Koch, F.L.

2009-01-01

The next generation of mobile services must invisible, convenient, and useful. It requires new techniques to design and develop mobile computing applications, based on user-centred, environment-aware, adaptive behaviour. I propose an alternative technology for the development of intelligent mobile

Individual Tariffs for Mobile Services: Theoretical Framework and a Computational Case in Mobile Music

OpenAIRE

Chen, Hong; Pau, Louis-François

2007-01-01

textabstractThis paper introduces individual tariffs at service and content bundle level in mobile communications. It gives a theoretical framework (economic, sociological) as well as a computational game solution method. The user can be an individual or a community. Individual tariffs are decided through interactions between the user and the supplier. A numerical example from mobile music illustrates the concepts.

From idea to blah! understanding mobile services development as interactive innovation

Directory of Open Access Journals (Sweden)

Eduardo Fontana

2005-08-01

Full Text Available Mobile communications are permeating virtually every aspect of our lives. The market is experiencing rapid improvements in technologies, while mobile operators are trying to figure out new ways their infrastructures can provide services to the customers. Furthermore, user-innovation with new ways of using these technologies generates powerful feedback loops back into the innovation processes. In this turbulent environment it is difficult to capture and conceptualize how newness comes about and what the main characteristics of innovation are. The aim of this paper is to illustrate how the concept of interactive innovation can be applied to explain the development of mobile services. This study adopts the perspective of the developer rather than the user. Moreover, through the social construction of technology lens, the concepts of sense-making and bricolage are applied to explain the innovation appropriation process during the mobile data value chain improvement process. One of the conclusions drawn is that in the rapidly changing and complex context of mobile services development, the traditional notion of ‘interactive innovation’ cannot fully explain this phenomenon that takes place.

47 CFR 25.143 - Licensing provisions for the 1.6/2.4 GHz mobile-satellite service and 2 GHz mobile-satellite...

Science.gov (United States)

2010-10-01

... 47 Telecommunication 2 2010-10-01 2010-10-01 false Licensing provisions for the 1.6/2.4 GHz mobile-satellite service and 2 GHz mobile-satellite service. 25.143 Section 25.143 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES SATELLITE COMMUNICATIONS Applications and Licenses...

Congestion Service Facilities Location Problem with Promise of Response Time

Directory of Open Access Journals (Sweden)

Dandan Hu

2013-01-01

Full Text Available In many services, promise of specific response time is advertised as a commitment by the service providers for the customer satisfaction. Congestion on service facilities could delay the delivery of the services and hurts the overall satisfaction. In this paper, congestion service facilities location problem with promise of response time is studied, and a mixed integer nonlinear programming model is presented with budget constrained. The facilities are modeled as M/M/c queues. The decision variables of the model are the locations of the service facilities and the number of servers at each facility. The objective function is to maximize the demands served within specific response time promised by the service provider. To solve this problem, we propose an algorithm that combines greedy and genetic algorithms. In order to verify the proposed algorithm, a lot of computational experiments are tested. And the results demonstrate that response time has a significant impact on location decision.

A New Approach to Predict user Mobility Using Semantic Analysis and Machine Learning.

Science.gov (United States)

Fernandes, Roshan; D'Souza G L, Rio

2017-10-19

Mobility prediction is a technique in which the future location of a user is identified in a given network. Mobility prediction provides solutions to many day-to-day life problems. It helps in seamless handovers in wireless networks to provide better location based services and to recalculate paths in Mobile Ad hoc Networks (MANET). In the present study, a framework is presented which predicts user mobility in presence and absence of mobility history. Naïve Bayesian classification algorithm and Markov Model are used to predict user future location when user mobility history is available. An attempt is made to predict user future location by using Short Message Service (SMS) and instantaneous Geological coordinates in the absence of mobility patterns. The proposed technique compares the performance metrics with commonly used Markov Chain model. From the experimental results it is evident that the techniques used in this work gives better results when considering both spatial and temporal information. The proposed method predicts user's future location in the absence of mobility history quite fairly. The proposed work is applied to predict the mobility of medical rescue vehicles and social security systems.

Apps and Mobile Support Services in Canadian Academic Medical Libraries

Directory of Open Access Journals (Sweden)

Tess Grynoch

2016-12-01

Full Text Available Objective: To examine how Canadian academic medical libraries are supporting mobile apps, what apps are currently being provided by these libraries, and what types of promotion are being used. Methods: A survey of the library websites for the 17 medical schools in Canada was completed. For each library website surveyed, the medical apps listed on the website, any services mentioned through this medium, and any type of app promotion events were noted. When Facebook and Twitter accounts were evident, the tweets were searched and the past two years of Facebook posts scanned for mention of medical apps or mobile services/events. Results: All seventeen academic medical libraries had lists of mobile medical apps with a large range in the number of medical relevant apps (average=31, median= 23. A total of 275 different apps were noted and the apps covered a wide range of subjects. Five of the 14 Facebook accounts scanned had posts about medical apps in the past two years while 11 of the 15 Twitter accounts had tweets about medical apps. Social media was only one of the many promotional methods noted. Outside of the app lists and mobile resources guides, Canadian academic medical libraries are providing workshops, presentations, and drop-in sessions for mobile medical apps. Conclusion: While librarians cannot simply compare mobile services and resources between academic medical libraries without factoring in a number of other circumstances, librarians can learn from mobile resources strategies employed at other libraries, such as using research guides to increase medical app literacy.

Enhancing Customer Loyalty towards Corporate Social Responsibility of Thai Mobile Service Providers

OpenAIRE

Wichai Onlaor; Siriluck Rotchanakitumnuai

2010-01-01

The aim of this research is to develop the understanding of corporate social responsibility (CSR) from consumers- perspective toward Thai mobile service providers. Based on the survey from 400 mobile customers, the result shows that four dimensions of CSR of Thai mobile service providers consist of economic, legal, ethical and philanthropic responsibility. These four CSR factors have positive impacts on enhancing customer satisfaction except one item of economic respon...

Managing travel demand: Location recommendation for system efficiency based on mobile phone data

OpenAIRE

Leng, Yan; Rudolph, Larry; Pentland, Alex 'Sandy'; Zhao, Jinhua; Koutsopolous, Haris N.

2016-01-01

Growth in leisure travel has become increasingly significant economically, socially, and environmentally. However, flexible but uncoordinated travel behaviors exacerbate traffic congestion. Mobile phone records not only reveal human mobility patterns, but also enable us to manage travel demand for system efficiency. In this paper, we propose a location recommendation system that infers personal preferences while accounting for constraints imposed by road capacity in order to manage travel dem...

An Android based location service using GSMCellID and GPS to obtain a graphical guide to the nearest cash machine

Science.gov (United States)

Jacobsen, Jurma; Edlich, Stefan

2009-02-01

There is a broad range of potential useful mobile location-based applications. One crucial point seems to be to make them available to the public at large. This case illuminates the abilities of Android - the operating system for mobile devices - to fulfill this demand in the mashup way by use of some special geocoding web services and one integrated web service for getting the nearest cash machines data. It shows an exemplary approach for building mobile location-based mashups for everyone: 1. As a basis for reaching as many people as possible the open source Android OS is assumed to spread widely. 2. Everyone also means that the handset has not to be an expensive GPS device. This is realized by re-utilization of the existing GSM infrastructure with the Cell of Origin (COO) method which makes a lookup of the CellID in one of the growing web available CellID databases. Some of these databases are still undocumented and not yet published. Furthermore the Google Maps API for Mobile (GMM) and the open source counterpart OpenCellID are used. The user's current position localization via lookup of the closest cell to which the handset is currently connected to (COO) is not as precise as GPS, but appears to be sufficient for lots of applications. For this reason the GPS user is the most pleased one - for this user the system is fully automated. In contrary there could be some users who doesn't own a GPS cellular. This user should refine his/her location by one click on the map inside of the determined circular region. The users are then shown and guided by a path to the nearest cash machine by integrating Google Maps API with an overlay. Additionally, the GPS user can keep track of him- or herself by getting a frequently updated view via constantly requested precise GPS data for his or her position.

Exploiting Proximity-Based Mobile Apps for Large-Scale Location Privacy Probing

Directory of Open Access Journals (Sweden)

Shuang Zhao

2018-01-01

Full Text Available Proximity-based apps have been changing the way people interact with each other in the physical world. To help people extend their social networks, proximity-based nearby-stranger (NS apps that encourage people to make friends with nearby strangers have gained popularity recently. As another typical type of proximity-based apps, some ridesharing (RS apps allowing drivers to search nearby passengers and get their ridesharing requests also become popular due to their contribution to economy and emission reduction. In this paper, we concentrate on the location privacy of proximity-based mobile apps. By analyzing the communication mechanism, we find that many apps of this type are vulnerable to large-scale location spoofing attack (LLSA. We accordingly propose three approaches to performing LLSA. To evaluate the threat of LLSA posed to proximity-based mobile apps, we perform real-world case studies against an NS app named Weibo and an RS app called Didi. The results show that our approaches can effectively and automatically collect a huge volume of users’ locations or travel records, thereby demonstrating the severity of LLSA. We apply the LLSA approaches against nine popular proximity-based apps with millions of installations to evaluate the defense strength. We finally suggest possible countermeasures for the proposed attacks.

Consuming Web Services on Android Mobile Platform for Finding Parking Lots

OpenAIRE

Isak Shabani; Besmir Sejdiu; Fatushe Jasharaj

2015-01-01

Many web applications over the last decade are built using Web services based on Simple Object Access Protocol (SOAP), because these Web services are the best choice for web applications and mobile applications in general. Researches and the results of them show how architectures and the systems primarily designed for use on desktop such as Web services calls with SOAP messaging, now are possible to be used on mobile platforms such as Android. The purpose of this paper is the study of Android...

A cloud system for mobile medical services of traditional Chinese medicine.

Science.gov (United States)

Hu, Nian-Ze; Lee, Chia-Ying; Hou, Mark C; Chen, Ying-Ling

2013-12-01

Many medical centers in Taiwan have started to provide Traditional Chinese Medicine (TCM) services for hospitalized patients. Due to the complexity of TCM modality and the increasing need for providing TCM services for patients in different wards at distantly separate locations within the hospital, it is getting difficult to manage the situation in the traditional way. A computerized system with mobile ability can therefore provide a practical solution to the challenge presented. The study tries to develop a cloud system equipped with mobile devices to integrate electronic medical records, facilitate communication between medical workers, and improve the quality of TCM services for the hospitalized patients in a medical center. The system developed in the study includes mobile devices carrying Android operation system and a PC as a cloud server. All the devices use the same TCM management system developed by the study. A website of database is set up for information sharing. The cloud system allows users to access and update patients' medical information, which is of great help to medical workers for verifying patients' identification and giving proper treatments to patients. The information then can be wirelessly transmitted between medical personnel through the cloud system. Several quantitative and qualitative evaluation indexes are developed to measure the effectiveness of the cloud system on the quality of the TCM service. The cloud system is tested and verified based on a sample of hospitalized patients receiving the acupuncture treatment at the Lukang Branch of Changhua Christian Hospital (CCH) in Taiwan. The result shows a great improvement in operating efficiency of the TCM service in that a significant saving in labor time can be attributable to the cloud system. In addition, the cloud system makes it easy to confirm patients' identity through taking a picture of the patient upon receiving any medical treatment. The result also shows that the cloud system

Disentangling location based mobile advertising: the effects of location congruence and type of the medium on consumers' ad-recall and buying behaviour

NARCIS (Netherlands)

Bernritter, S.; Ketelaar, P.; van Woudenberg, T.J.; Vantriet, J.; Huhn, A.; Janssen, L.

2015-01-01

An emerging body of research focuses on location-based advertising (LBA). This literature suggests that the merits of LBA rely on the fact that consumers can be targeted with location-congruent ads on their personal mobile devices. However, it has not yet been taken into account that LBA consists of

Productivity and quality improvements in health care through airboss mobile messaging services.

Science.gov (United States)

Shah, P J; Martinez, R; Cooney, E

1997-01-01

The US health care industry is in the midst of revolutionary changes. Under tremendous pressures from third-party payers and managed care programs to control costs while providing high quality medical services, health care entities are now looking at information technologies to help them achieve their goals. These goals typically include improved productivity, efficiency and decision-making capabilities among staff members. Moreover, hospitals and other health care facilities that provide a broad and integrated range of inpatient and outpatient care, wellness and home care services are in the best position to offer comprehensive packages to managed care and private insurers. Many health care providers and administrators are considered mobile employees. This mobility can range from intra-building and intra-campus to multi-site and metropolitan areas. This group often relies on a variety of information technologies such as personal computers, communicating laptops, pagers, cellular phones, wireline phones, cordless phones and fax machines to stay in touch and handle information needs. These health care professionals require mobile information access and messaging tools to improve communications, control accessibility and enhance decision-making capabilities. AirBoss mobile messaging services could address the health care industry's need for improved messaging capabilities for its mobile employees. The AirBoss family of services supports integrated voice services, data messaging, mobile facsimile and customized information delivery. This paper describes overview of the current mobile data networking capability, the AirBoss architecture, the health care-related applications it addresses and long-term benefits. In addition, a prototype application for mobile home health care workers is illustrated. This prototype application provides integrated e-mail, information services, web access, real-time access and update of patient records from wireline or wireless networks

Design guidelines for mobile information and entertainment services based on the Radio538 ringtunes i-mode service case study

NARCIS (Netherlands)

Kar, E. van de; Maitland, C.F.; Wehn de Montalvo, U.W.C.; Bouwman, H.

2003-01-01

The mobile telecommunications industry is undergoing rapid change, which is increasing the interdependency of firms in the sector. Mobile information and entertainment services will be delivered through inter-organizational networks of firms. This means the problems of service design must be

Mobile radio alternative systems study traffic model

Science.gov (United States)

Tucker, W. T.; Anderson, R. E.

1983-06-01

The markets for mobile radio services in non-urban areas of the United States are examined for the years 1985-2000. Three market categories are identified. New Services are defined as those for which there are different expressed ideas but which are not now met by any application of available technology. The complete fulfillment of the needs requires nationwide radio access to vehicles without knowledge of vehicle location, wideband data transmission from remote sites, one- and two way exchange of short data and control messages between vehicles and dispatch or control centers, and automatic vehicle location (surveillance). The commercial and public services market of interest to the study is drawn from existing users of mobile radio in non-urban areas who are dissatisfied with the geographical range or coverage of their systems. The mobile radio telephone market comprises potential users who require access to the public switched telephone network in areas that are not likely to be served by the traditional growth patterns of terrestrial mobile telephone services. Conservative, likely, and optimistic estimates of the markets are presented in terms of numbers of vehicles that will be served and the radio traffic they will generate.

Precise Positioning of Marketing and Behavior Intentions of Location-Based Mobile Commerce in the Internet of Things

Directory of Open Access Journals (Sweden)

Yao-Te Tsai

2017-08-01

Full Text Available In the complex environment of the IoT (Internet of Things, the amount of information available is enormous and the number of users also increases at a blistering pace. With a huge number of users, e-commerce marketing strategies in the IoT become extremely important and must be altered accordingly in response to changes in the environment and industry. Hence, the application of IoT technology to mobile commerce allows users to receive integrated information according to time, location, and context using location-based service, and provides them with a more effective shopping experience. The validation results show that external variables indirectly influence behavioral intention through perceived usefulness. The investigation of behavioral intention is used to understand users’ acceptance and using willingness of the store app, which can help narrow the gap between stores and consumers, and help improve operations.

77 FR 1661 - Private Land Mobile Radio Service Regulations

Science.gov (United States)

2012-01-11

... Mobile Radio Service Regulations AGENCY: Federal Communications Commission. ACTION: Proposed rule... airport personnel and airline passengers and can have a negative impact on airport logistics and operations. We seek comment on service and technical rules, and on whether such operations should be...

Global Mobile Satellite Service Interference Analysis for the AeroMACS

Science.gov (United States)

Wilson, Jeffrey D.; Apaza, Rafael D.; Hall, Ward; Phillips, Brent

2013-01-01

The AeroMACS (Aeronautical Mobile Airport Communications System), which is based on the IEEE 802.16-2009 mobile wireless standard, is envisioned as the wireless network which will cover all areas of airport surfaces for next generation air transportation. It is expected to be implemented in the 5091-5150 MHz frequency band which is also occupied by mobile satellite service uplinks. Thus the AeroMACS must be designed to avoid interference with this incumbent service. Simulations using Visualyse software were performed utilizing a global database of 6207 airports. Variations in base station and subscriber antenna distribution and gain pattern were examined. Based on these simulations, recommendations for global airport base station and subscriber antenna power transmission limitations are provided.

Mobile Low Latency Services in 5G

DEFF Research Database (Denmark)

Cattoni, Andrea Fabio; Chandramouli, Devaki; Sartori, Cinzia

2015-01-01

Networks beyond 2020 will experience 10000-fold increase in wireless traffic, connect 10-100 times more devices and support the most diverse use cases. Thus, the 5G architecture needs to be flexible and cater for both traffic volumes and diversity of service requirements. Among the set of new use...... cases, support of delay sensitive "mobile" applications, such as vehicular communications (V2X, where X stands for either Vehicle or Infrastructure), require architecture enhancements to natively offer low latency and high mobility. In this paper we propose the necessary technology enablers...

Mobile and Accessible Learning for MOOCs

Science.gov (United States)

Sharples, Mike; Kloos, Carlos Delgado; Dimitriadis, Yannis; Garlatti, Serge; Specht, Marcus

2015-01-01

Many modern web-based systems provide a "responsive" design that allows material and services to be accessed on mobile and desktop devices, with the aim of providing "ubiquitous access." Besides offering access to learning materials such as podcasts and videos across multiple locations, mobile, wearable and ubiquitous…

Improvement of maternal health services through the use of mobile phones.

Science.gov (United States)

Noordam, A Camielle; Kuepper, Barbara M; Stekelenburg, Jelle; Milen, Anneli

2011-05-01

To analyse, on the basis of the literature, the potential of mobile phones to improve maternal health services in Low and Middle Income Countries (LMIC). Wide search for scientific and grey literature using various terms linked to: maternal health, mobile telecommunication and LMIC. Applications requiring an internet connection were excluded as this is not widely available in LMIC yet. Few projects exist in this field and little evidence is available as yet on the impact of mobile phones on the quality of maternal health services. Projects focus mainly on the delay in receiving care--that is in recognizing the need and making the decision to seek care--and the delay in arriving at the health facility. This is achieved by connecting lesser trained health workers to specialists and coordination of referrals. Ongoing projects focus on empowering women to seek health care. There is broad agreement that access to communication is one of several essential components to improve maternal health services and hence the use of mobile phones has much potential. However, there is a need for robust evidence on constraints and impacts, especially when financial and human resources will be invested. Concurrently, other ways in which mobile phones can be used to benefit maternal health services need to be further explored, taking into consideration privacy and confidentiality. © 2011 Blackwell Publishing Ltd.

Empowering Rural Women through Mobile Services

Science.gov (United States)

Nagarajan, P.; Jiji, G. Wiselin

2010-01-01

This paper is intended as a gender issue to the rural finance practitioners. It highlights the questions that need to be asked and addressed to the gender mainstream. It will also be useful to gender experts to wish to increase their understanding on specific gender issues in rural finance through mobile services. It focuses on rural microfinance…

A Strategy toward Collaborative Filter Recommended Location Service for Privacy Protection

Science.gov (United States)

Wang, Peng; Yang, Jing; Zhang, Jianpei

2018-01-01

A new collaborative filtered recommendation strategy was proposed for existing privacy and security issues in location services. In this strategy, every user establishes his/her own position profiles according to their daily position data, which is preprocessed using a density clustering method. Then, density prioritization was used to choose similar user groups as service request responders and the neighboring users in the chosen groups recommended appropriate location services using a collaborative filter recommendation algorithm. The two filter algorithms based on position profile similarity and position point similarity measures were designed in the recommendation, respectively. At the same time, the homomorphic encryption method was used to transfer location data for effective protection of privacy and security. A real location dataset was applied to test the proposed strategy and the results showed that the strategy provides better location service and protects users’ privacy. PMID:29751670

A Strategy toward Collaborative Filter Recommended Location Service for Privacy Protection.

Science.gov (United States)

Wang, Peng; Yang, Jing; Zhang, Jianpei

2018-05-11

A new collaborative filtered recommendation strategy was proposed for existing privacy and security issues in location services. In this strategy, every user establishes his/her own position profiles according to their daily position data, which is preprocessed using a density clustering method. Then, density prioritization was used to choose similar user groups as service request responders and the neighboring users in the chosen groups recommended appropriate location services using a collaborative filter recommendation algorithm. The two filter algorithms based on position profile similarity and position point similarity measures were designed in the recommendation, respectively. At the same time, the homomorphic encryption method was used to transfer location data for effective protection of privacy and security. A real location dataset was applied to test the proposed strategy and the results showed that the strategy provides better location service and protects users' privacy.

Wireless Indoor Location Estimation Based on Neural Network RSS Signature Recognition (LENSR)

Energy Technology Data Exchange (ETDEWEB)

Kurt Derr; Milos Manic

2008-06-01

Location Based Services (LBS), context aware applications, and people and object tracking depend on the ability to locate mobile devices, also known as localization, in the wireless landscape. Localization enables a diverse set of applications that include, but are not limited to, vehicle guidance in an industrial environment, security monitoring, self-guided tours, personalized communications services, resource tracking, mobile commerce services, guiding emergency workers during fire emergencies, habitat monitoring, environmental surveillance, and receiving alerts. This paper presents a new neural network approach (LENSR) based on a competitive topological Counter Propagation Network (CPN) with k-nearest neighborhood vector mapping, for indoor location estimation based on received signal strength. The advantage of this approach is both speed and accuracy. The tested accuracy of the algorithm was 90.6% within 1 meter and 96.4% within 1.5 meters. Several approaches for location estimation using WLAN technology were reviewed for comparison of results.

How to Find HIV Treatment Services

Science.gov (United States)

... also find federally funded health centers through HRSA’s mobile apps . HIV.gov Service Locator This database from ... help with mental health or substance abuse and addiction. SAMHSA’s Behavioral Health Treatment Services Locator allows visitors ...

DYNAMIC MATHEMATICAL MODEL OF URBAN SPATIAL PATTERN (RESIDENTIAL CHOICE OF LOCATION: MOBILITY VS EXTERNALITY

Directory of Open Access Journals (Sweden)

Rahma Fitriani

2015-01-01

Full Text Available Household’s residential choice of location determines urban spatial pattern (e.g sprawl. The static model which assumes that the choice has been affected by distance to the CBD and location specific externality, fails to capture the evoution of the pattern over time. Therefore this study proposes a dynamic version of the model. It analyses the effects of externalities on the optimal solution of development decision as function of time. It also derives the effect of mobility and externality on the rate of change of development pattern through time. When the increasing rate of utility is not as significant as the increasing rate of income, the externalities will delay the change of urban spatial pattern over time. If the mobility costs increase by large amount relative to the increase of income and inflation rate, then the mobility effect dominates the effects of externalities in delaying the urban expansion.

Factors influencing the adoption of mobile financial services in the ...

African Journals Online (AJOL)

user

the basis for product or service development, pricing, marketing and policy formulation. In this study we ... Key words: Mobile financial services, Adoption, Tanzania ...... Financial Inclusion Strategies Referenca Framework. Washington DC: ...

In Need of Creative Mobile Service Ideas? Forget Adults and Ask Young Children

Directory of Open Access Journals (Sweden)

Ilona Kuzmickaja

2015-08-01

Full Text Available It is well acknowledged that innovation is a key success factor in the mobile service domain. Having creative ideas is the first critical step in the innovation process. Many studies suggest that customers are a valuable source of creative ideas. However, the literature also shows that adults may be constrained by existing technology frames, which are known to hinder creativity. Instead young children (aged 7-12 are considered digital natives yet are free from existing technology frames. This led us to study them as a potential source for creative mobile service ideas. A set of 41,000 mobile ideas obtained from a research project in 2006 granted us a unique opportunity to study the mobile service ideas from young children. We randomly selected two samples of ideas (N = 400 each; one contained the ideas from young children, the other from adults (aged 17-50. These ideas were evaluated by several evaluators using an existing creativity framework. The results show that the mobile service ideas from the young children are significantly more original, transformational, implementable, and relevant than those from the adults. Therefore, this study shows that young children are better sources of novel and quality ideas than adults in the mobile services domain. This study bears significant contributions to the creativity and innovation research. It also indicates a new and valuable source for the companies that seek creative ideas for innovative products and services.

Location Based Service Panduan Pencarian Rumah Sakit dengan Platform Android di Kota Semarang

Directory of Open Access Journals (Sweden)

Muh. Udka

2015-04-01

Full Text Available Until now, the location information of the General Hospital has not yet computerized and many take advantage of mobile devices. Therefore, it is necessary to study to facilitate the search for the nearest hospital. Android-based phones have several features such as the Global Positioning System (GPS, which can be used to give the user the latest geolocation information, and connectivity with the 3G network. While the Location Based Service (LBS are services that support GPS function. The Android platform can also be integrated with the Google Maps API. Google Maps API is a product from Google that offers the ease of building applications that require data geolocation and the ability to provide a fairly complete map. The first step in this research is to study the literature on Android, GPS, and Google Maps API. The second step is to design applications with modeling Unified Modeling Language (UML. The final step, carried implementation using the Java programming language. Based on test results, hospital In the search application, there are two options to choose a search based on a list of hospitals or radius of the location of the user. And the use of GPS is very accurate, but it can only work with a maximum when used in a location free from obstruction satellite, evident from testing conducted by researchers who carried out the entire room without any obstructions. Search applications hospital immediately shows the route to the nearest hospital from the user. At the hospital Radius of users displayed in the application is the shortest distance when the straight line drawn between the hospital with the user. Search applications hospitals can work well in the real environment, ie Android devices Sony Ericsson Xperia Arc. Android applications are developed with the target API level 15, can run well too at the API level on it.

Development of Mobile Educational Services Application to Improve Educational Outcomes using Android Technology

Directory of Open Access Journals (Sweden)

Hosam Farouk El-Sofany

2014-04-01

Full Text Available Mobile devices have become instruments that allow new ways of interacting with institutional services. This paper describes the development of the Mobile Educational Services Application (MES app for the Android platform. This app allows access to mediated and self-access services, as well as databases, announcements, registration, events, book consultations, schedules, etc. The project provides Mobile and Web-based application tools (apps that allow online access for different users - students, instructors, and administrators. The app provides students with a user friendly, generic, web-based GUI to request educational services, to send text message inquiries, to add, drop, or defer courses, etc.. The app allows instructors to send or receive text messages to and from students using the mobile or web-based interface of the app. In addition to system monitoring, the app provides administrators an online tool to manage, add, update, and delete system information. This tool seeks to be one of the more useful economic apps that use Android technology for applications, using Tablets and mobile devices, for the use of students, instructors and administrators in accessing services in an educational institution.

Probabilistic Location-based Routing Protocol for Mobile Wireless Sensor Networks with Intermittent Communication

Directory of Open Access Journals (Sweden)

Sho KUMAGAI

2015-02-01

Full Text Available In a sensor network, sensor data messages reach the nearest stationary sink node connected to the Internet by wireless multihop transmissions. Recently, various mobile sensors are available due to advances of robotics technologies and communication technologies. A location based message-by-message routing protocol, such as Geographic Distance Routing (GEDIR is suitable for such mobile wireless networks; however, it is required for each mobile wireless sensor node to know the current locations of all its neighbor nodes. On the other hand, various intermittent communication methods for a low power consumption requirement have been proposed for wireless sensor networks. Intermittent Receiver-driven Data Transmission (IRDT is one of the most efficient methods; however, it is difficult to combine the location based routing and the intermittent communication. In order to solve this problem, this paper proposes a probabilistic approach IRDT-GEDIR with the help of one of the solutions of the secretaries problem. Here, each time a neighbor sensor node wakes up from its sleep mode, an intermediate sensor node determines whether it forwards its buffered sensor data messages to it or not based on an estimation of achieved pseudo speed of the messages. Simulation experiments show that IRDT-GEDIR achieves higher pseudo speed of sensor data message transmissions and shorter transmission delay than achieves shorter transmission delay than the two naive combinations of IRDT and GEDIR in sensor networks with mobile sensor nodes and a stationary sink node. In addition, the guideline of the estimated numbers of the neighbor nodes of each intermediate sensor node is provided based on the results of the simulation experiments to apply the probabilistic approach IRDT-GEDIR.

Analysis of mobile pre-payment (pay in advance) and post-payment (pay later) services

NARCIS (Netherlands)

Molina-Castillo, Francisco Jose; Rodriguez-Guirao, Alicia; Lopez-Nicolas, Carolina; Bouwman, W.A.G.A.

2016-01-01

The diffusion of mobile payments (M-payments) is still in its early stages and further research is needed to understand what motivates or restricts people's behaviour when using mobile services. Based on a sample of Dutch mobile service users, this study analyses the antecedents of two types of

A Strategy toward Collaborative Filter Recommended Location Service for Privacy Protection

Directory of Open Access Journals (Sweden)

Peng Wang

2018-05-01

Full Text Available A new collaborative filtered recommendation strategy was proposed for existing privacy and security issues in location services. In this strategy, every user establishes his/her own position profiles according to their daily position data, which is preprocessed using a density clustering method. Then, density prioritization was used to choose similar user groups as service request responders and the neighboring users in the chosen groups recommended appropriate location services using a collaborative filter recommendation algorithm. The two filter algorithms based on position profile similarity and position point similarity measures were designed in the recommendation, respectively. At the same time, the homomorphic encryption method was used to transfer location data for effective protection of privacy and security. A real location dataset was applied to test the proposed strategy and the results showed that the strategy provides better location service and protects users’ privacy.

Predicting the Location and Time of Mobile Phone Users by Using Sequential Pattern Mining Techniques

DEFF Research Database (Denmark)

Ozer, Mert; Keles, Ilkcan; Toroslu, Hakki

2016-01-01

In recent years, using cell phone log data to model human mobility patterns became an active research area. This problem is a challenging data mining problem due to huge size and non-uniformity of the log data, which introduces several granularity levels for the specification of temporal...... and spatial dimensions. This paper focuses on the prediction of the location of the next activity of the mobile phone users. There are several versions of this problem. In this work, we have concentrated on the following three problems: predicting the location and the time of the next user activity...... the success of these methods with real data obtained from one of the largest mobile phone operators in Turkey. Our results are very encouraging, since we were able to obtain quite high accuracy results under small prediction sets....

Emergence of Mobility Services in Urban China

Institute of Scientific and Technical Information of China (English)

Jean-Francois Doulet

2010-01-01

This article points out the limits of top-down strategies in China rooted in the construction of large-scale transportation facilities, primarily road networks. It helps to identify emerging trends that show a shift from a "hardware" approach, which focuses mainly on heavy in- frastructure investments, to a "software" approach, which rather relies on improving travel conditions. Based on the description of three existing mobility services that won awards in the 2010 "Better Mobility, Better Life" Prize for Innovative Urban Mobility Solutions, this article assesses these bottom-up, multi-participation strategies, and the effects of these "soft strategies" on improving travel conditions, reducing car dependency, building communities, etc. Finally, it concludes that these soft measures can contribute to the building of a harmonious society and low-carbon cities, and should receive more attention and support.

Location tracking forensics on mobile devices

Science.gov (United States)

Sack, Stefan; Kröger, Knut; Creutzburg, Reiner

2013-03-01

The spread of navigation devices has increased significantly over the last 10 years. With the help of the current development of even smaller navigation receiver units it is to navigate with almost any current smart phone. Modern navigation systems are no longer limited to satellite navigation, but use current techniques, e.g. WLAN localization. Due to the increased use of navigation devices their relevance to forensic investigations has risen rapidly. Because navigation, for example with navigation equipment and smartphones, have become common place these days, also the amount of saved navigation data has risen rapidly. All of these developments lead to a necessary forensic analysis of these devices. However, there are very few current procedures for investigating of navigation devices. Navigation data is forensically interesting because by the position of the devices in most cases the location and the traveled path of the owner can be reconstructed. In this work practices for forensic analysis of navigation devices are developed. Different devices will be analyzed and it is attempted, by means of forensic procedures to restore the traveled path of the mobile device. For analysis of the various devices different software and hardware is used. There will be presented common procedures for securing and testing of mobile devices. Further there will be represented the specials in the investigation of each device. The different classes considered are GPS handhelds, mobile navigation devices and smartphones. It will be attempted, wherever possible, to read all data of the device. The aim is to restore complete histories of the navigation data and to forensically study and analyze these data. This is realized by the usage of current forensic software e.g. TomTology or Oxygen Forensic Suite. It is also attempted to use free software whenever possible. Further alternative methods are used (e.g. rooting) to access locked data of the unit. To limit the practical work the

Data mining mobile devices

CERN Document Server

Mena, Jesus

2013-01-01

With today's consumers spending more time on their mobiles than on their PCs, new methods of empirical stochastic modeling have emerged that can provide marketers with detailed information about the products, content, and services their customers desire.Data Mining Mobile Devices defines the collection of machine-sensed environmental data pertaining to human social behavior. It explains how the integration of data mining and machine learning can enable the modeling of conversation context, proximity sensing, and geospatial location throughout large communities of mobile users

RESEARCH ON MOBILE CONSUMER HABIT AND ATTITUDE TOWARDS FEMTOCELL SERVICES

Directory of Open Access Journals (Sweden)

Novika Chandra Astuti

2017-04-01

Full Text Available Femtocell is the new technology that may offer competitive value to mobile service providers for increasing their market share, retain the consumers and lower the operational cost ini providing the better signal especially inside building (indoor. This study investigate the habit and attitude of mobile consumers int two specific areas in Bandung; Buah Batu Regency and Mitra Dago-Antapani, toward the use of femtocell value and services. This study also considers the marketing implication the success of femtocell deployment in the future

MoMoSat -- Mobile Service for Monitoring with GeoNotes via Satellite

Energy Technology Data Exchange (ETDEWEB)

Niemeyer, Irmgard [Forschungszentrum Juelich (Germany). Programme Group Systems Analysis and Technology Evaluation (STE); Jonas, Karl [Univ. of Applied Science Bonn-Rhein-Sieg, Sankt Augustin (Germany). FhG FOKUS CC SATCom; Horz, Alexander [horz informatik, Sankt Augustin (Germany); Wettschereck, Dietrich; Schmidt, Dirk [DIALOGIS GmbH, Bonn (Germany)

2003-05-01

The MoMoSat service will enable mobile end-users to view, manage, annotate, and communicate mapbased information in the field. The handled information exists of a huge volume of raster (satellite or aerial images) and vector data (i.e. street networks, cadastral maps or points of interest), as well as text-specific geo-referenced textual notes (the so-called 'GeoNotes') and real-time voice. A secure real-time communication between mobile units and the primary data store is an essential task of the MoMoSat service. The basic information is stored in the primary database that is accessible through a virtual private network (VPN) and cached at a server at a base station in order to ensure data availability. The base station may be installed in a car or another mobile vehicle. The two servers will periodically communicate with each other via secure satellite communication in order to check for updates. The base station supplies the relevant GIS data for the mobile units (people or even robots in the field at remote solutions). The communication between the mobile units is based on a peer-to-peer wireless local area network (WLAN) architecture. The mobile units are equipped with mobile computers (i.e. laptop, tablet PC or PDA) combined with a satellite-based positioning system (GPS) that enables them to request the proper geographic data sets from yhe base station's map server. An interactive mapping software shows the actual location on the map and allows the user to navigate (zoom, pan) through the high-resolution map display. The user can switch 'on' or 'off' several thematic layers (i.e. street network or points of interest) on the map. The software also supports collaborative aspects of MoMoSat by offering tools for the management of the GeoNotes that can be visualized by categories. The user can extend the existing GeoNotes with his personnel comments or create new GeoNotes by defining categories, recipients and the level of

Location-Based Services, Final Report

OpenAIRE

Goodchild, Michael F.

2001-01-01

In December, 2001 the Center for Spatially Integrated Social Science (CSISS; http://csiss.org) and the University Consortium for Geographic Information Science (UCGIS; http://www.ucgis.org) held a specialist meeting to explore location-based services, and their implications and significance for the social sciences and for geographic information science. There are a number of reasons for believing that LBS will have significant impact on the social sciences, stemming from three basic arguments...

A Streams-Based Framework for Defining Location-Based Queries

DEFF Research Database (Denmark)

Jensen, Christian Søndergaard; Xuegang, Huang

2007-01-01

n infrastructure is emerging that supports the delivery of on-line, location-enabled services to mobile users. Such services involve novel database queries, and the database research community is quite active in proposing techniques for the efficient processing of such queries. In parallel to this......, the management of data streams has become an active area of research. While most research in mobile services concerns performance issues, this paper aims to establish a formal framework for defining the semantics of queries encountered in mobile services, most notably the so-called continuous queries...... that are particularly relevant in this context. Rather than inventing an entirely new framework, the paper proposes a framework that builds on concepts from data streams and temporal databases. Definitions of example queries demonstrates how the framework enables clear formulation of query semantics and the comparison...

C#: Connecting a Mobile Application to Oracle Server via Web Services

Directory of Open Access Journals (Sweden)

Daniela Ilea

2008-01-01

Full Text Available This article is focused on mobile development using Visual Studio 2005, web services and their connection to Oracle Server, willing to help programmers to realize simple and useful mobile applications.

Lattice Based Mix Network for Location Privacy in Mobile System

Directory of Open Access Journals (Sweden)

Kunwar Singh

2015-01-01

Full Text Available In 1981, David Chaum proposed a cryptographic primitive for privacy called mix network (Mixnet. A mixnet is cryptographic construction that establishes anonymous communication channel through a set of servers. In 2004, Golle et al. proposed a new cryptographic primitive called universal reencryption which takes the input as encrypted messages under the public key of the recipients not the public key of the universal mixnet. In Eurocrypt 2010, Gentry, Halevi, and Vaikunthanathan presented a cryptosystem which is an additive homomorphic and a multiplicative homomorphic for only one multiplication. In MIST 2013, Singh et al. presented a lattice based universal reencryption scheme under learning with error (LWE assumption. In this paper, we have improved Singh et al.’s scheme using Fairbrother’s idea. LWE is a lattice hard problem for which till now there is no polynomial time quantum algorithm. Wiangsripanawan et al. proposed a protocol for location privacy in mobile system using universal reencryption whose security is reducible to Decision Diffie-Hellman assumption. Once quantum computer becomes a reality, universal reencryption can be broken in polynomial time by Shor’s algorithm. In postquantum cryptography, our scheme can replace universal reencryption scheme used in Wiangsripanawan et al. scheme for location privacy in mobile system.

Mining human mobility in location-based social networks

CERN Document Server

Gao, Huiji

2015-01-01

In recent years, there has been a rapid growth of location-based social networking services, such as Foursquare and Facebook Places, which have attracted an increasing number of users and greatly enriched their urban experience. Typical location-based social networking sites allow a user to ""check in"" at a real-world POI (point of interest, e.g., a hotel, restaurant, theater, etc.), leave tips toward the POI, and share the check-in with their online friends. The check-in action bridges the gap between real world and online social networks, resulting in a new type of social networks, namely l

Location Based Services in GSM Networks and New Possibilities for their Application in Transport

Directory of Open Access Journals (Sweden)

Jozef Dubovan

2006-01-01

Full Text Available An enormous growth of mobile communication gives new challenges for new services creation. One of the possibilities is to focus attention on the localisation and localisation based services. It gives for mobile networks customers new information about position of another customers or subjects. This paper deals with utilisation possibilities of the localisation technology “Cell ID” and improvement of its accuracy.

Towards A Streams-Based Framework for Defining Location-Based Queries

DEFF Research Database (Denmark)

Huang, Xuegang; Jensen, Christian S.

2004-01-01

An infrastructure is emerging that supports the delivery of on-line, location-enabled services to mobile users. Such services involve novel database queries, and the database research community is quite active in proposing techniques for the effi- cient processing of such queries. In parallel...... to this, the management of data streams has become an active area of research. While most research in mobile services concerns performance issues, this paper aims to establish a formal framework for defining the semantics of queries encountered in mobile services, most notably the so-called continuous...... queries that are particularly relevant in this context. Rather than inventing an entirely new framework, the paper proposes a framework that builds on concepts from data streams and temporal databases. Definitions of example queries demonstrates how the framework enables clear formulation of query...

Context-aware application for mobile banking

OpenAIRE

Polak, Marko

2011-01-01

The field of mobile applications is rapidly evolving. The reason for this lies in the development of smartphones and in the beginning of their wider usage. The development of mobile applications is therefore spreading into different fields. One of them is mobile banking. Mobile banking represents new possibilities in the banking sector. It enables banking services that are independent from time and location and, with transition to smartphones, it also enables the usage of advantages of mo...

Private Sharing of User Location over Online Social Networks

OpenAIRE

Freudiger, Julien; Neu, Raoul; Hubaux, Jean-Pierre

2010-01-01

Online social networks increasingly allow mobile users to share their location with their friends. Much to the detriment of users’ privacy, this also means that social network operators collect users’ lo- cation. Similarly, third parties can learn users’ location from localization and location visualization services. Ideally, third-parties should not be given complete access to users’ location. To protect location privacy, we design and implement a platform-independent solution for users to s...

Efficency of mobile authentication service technology on phase 1 ...

African Journals Online (AJOL)

Conclusion: The findings of this study revealed that some brands antimalarial and antibacterial drugs available in the Nigeria drug market still do not have MAS technology inscribed on them and efficiency of Mobile Authentication Service is directly a function of the competence of the service providers authorized to manage ...

Approaches to Addressing Service Selection Ties in Ad Hoc Mobile Cloud Computing

Directory of Open Access Journals (Sweden)

Ayotuyi Tosin Akinola

2018-01-01

Full Text Available The ad hoc mobile cloud (AMC allows mobile devices to connect together through a wireless connection or any other means and send a request for web services from one to another within the mobile cloud. However, one of the major challenges in the AMC is the occurrence of dissatisfaction experienced by the users. This is because there are many services with similar functionalities but varying nonfunctional properties. Moreover, another resultant cause of user dissatisfaction being coupled with runtime redundancy is the attainment of similar quality computations during service selection, often referred to as “service selection ties.” In an attempt to address this challenge, service selection mechanisms for the AMC were developed in this work. This includes the use of selected quality of service properties coupled with user feedback data to determine the most suitable service. These mechanisms were evaluated using the experimental method. The evaluation of the mechanisms mainly focused on the metrics that evaluate the satisfaction of users' interest via the quantitative evaluation. The experiments affirmed that the use of the shortest distance can help to break selection ties between potential servicing nodes. Also, a continuous use of updated and unlimited range of users' assessments enhances an optimal service selection.

75 FR 63445 - Vessel Monitoring Systems; Approved Mobile Transmitting Units and Communications Service...

Science.gov (United States)

2010-10-15

... Monitoring Systems; Approved Mobile Transmitting Units and Communications Service Providers for Use in the... features of the VMS. ADDRESSES: To obtain copies of the list of NOAA-approved VMS mobile transmitting units and NOAA-approved VMS communications service providers, please contact the VMS Support Center at...

Rethinking Indoor Localization Solutions Towards the Future of Mobile Location-Based Services

Science.gov (United States)

Guney, C.

2017-11-01

Satellite navigation systems with GNSS-enabled devices, such as smartphones, car navigation systems, have changed the way users travel in outdoor environment. GNSS is generally not well suited for indoor location and navigation because of two reasons: First, GNSS does not provide a high level of accuracy although indoor applications need higher accuracies. Secondly, poor coverage of satellite signals for indoor environments decreases its accuracy. So rather than using GNSS satellites within closed environments, existing indoor navigation solutions rely heavily on installed sensor networks. There is a high demand for accurate positioning in wireless networks in GNSS-denied environments. However, current wireless indoor positioning systems cannot satisfy the challenging needs of indoor location-aware applications. Nevertheless, access to a user's location indoors is increasingly important in the development of context-aware applications that increases business efficiency. In this study, how can the current wireless location sensing systems be tailored and integrated for specific applications, like smart cities/grids/buildings/cars and IoT applications, in GNSS-deprived areas.

RETHINKING INDOOR LOCALIZATION SOLUTIONS TOWARDS THE FUTURE OF MOBILE LOCATION-BASED SERVICES

Directory of Open Access Journals (Sweden)

C. Guney

2017-11-01

Full Text Available Satellite navigation systems with GNSS-enabled devices, such as smartphones, car navigation systems, have changed the way users travel in outdoor environment. GNSS is generally not well suited for indoor location and navigation because of two reasons: First, GNSS does not provide a high level of accuracy although indoor applications need higher accuracies. Secondly, poor coverage of satellite signals for indoor environments decreases its accuracy. So rather than using GNSS satellites within closed environments, existing indoor navigation solutions rely heavily on installed sensor networks. There is a high demand for accurate positioning in wireless networks in GNSS-denied environments. However, current wireless indoor positioning systems cannot satisfy the challenging needs of indoor location-aware applications. Nevertheless, access to a user’s location indoors is increasingly important in the development of context-aware applications that increases business efficiency. In this study, how can the current wireless location sensing systems be tailored and integrated for specific applications, like smart cities/grids/buildings/cars and IoT applications, in GNSS-deprived areas.

Workforce mobility: Contributing towards smart city

International Nuclear Information System (INIS)

Nor, N M; Wahap, N A

2014-01-01

Smart cities gained importance as a means of making ICT enabled services and applications available to the citizens, companies and authorities that form part of a city's system. It aims at increasing citizen's quality of life, and improving the efficiency and quality of the services provided by governing entities and businesses. This perspective requires an integrated vision of a city and of its infrastructures in all components. One of the characteristics of a smart city is mobility. The concept of mobility, especially for the workforce, is studied through a research carried out on a daily work undertaken as a prototype in the administrative town of Putrajaya, Malaysia. Utilizing the location track from GNSS integrated with mobile devices platform, information on movement and mobility was analysed for quality and efficiency of services rendered. This paper will highlight the research and outcomes that were successfully carried out and will suggest that workforce mobility management can benefit the authorities towards implementing a smart city concept

Workforce mobility: Contributing towards smart city

Science.gov (United States)

Nor, N. M.; Wahap, N. A.

2014-02-01

Smart cities gained importance as a means of making ICT enabled services and applications available to the citizens, companies and authorities that form part of a city's system. It aims at increasing citizen's quality of life, and improving the efficiency and quality of the services provided by governing entities and businesses. This perspective requires an integrated vision of a city and of its infrastructures in all components. One of the characteristics of a smart city is mobility. The concept of mobility, especially for the workforce, is studied through a research carried out on a daily work undertaken as a prototype in the administrative town of Putrajaya, Malaysia. Utilizing the location track from GNSS integrated with mobile devices platform, information on movement and mobility was analysed for quality and efficiency of services rendered. This paper will highlight the research and outcomes that were successfully carried out and will suggest that workforce mobility management can benefit the authorities towards implementing a smart city concept.

Latent Feature Models for Uncovering Human Mobility Patterns from Anonymized User Location Traces with Metadata

KAUST Repository

Alharbi, Basma Mohammed

2017-04-10

In the mobile era, data capturing individuals’ locations have become unprecedentedly available. Data from Location-Based Social Networks is one example of large-scale user-location data. Such data provide a valuable source for understanding patterns governing human mobility, and thus enable a wide range of research. However, mining and utilizing raw user-location data is a challenging task. This is mainly due to the sparsity of data (at the user level), the imbalance of data with power-law users and locations check-ins degree (at the global level), and more importantly the lack of a uniform low-dimensional feature space describing users. Three latent feature models are proposed in this dissertation. Each proposed model takes as an input a collection of user-location check-ins, and outputs a new representation space for users and locations respectively. To avoid invading users privacy, the proposed models are designed to learn from anonymized location data where only IDs - not geophysical positioning or category - of locations are utilized. To enrich the inferred mobility patterns, the proposed models incorporate metadata, often associated with user-location data, into the inference process. In this dissertation, two types of metadata are utilized to enrich the inferred patterns, timestamps and social ties. Time adds context to the inferred patterns, while social ties amplifies incomplete user-location check-ins. The first proposed model incorporates timestamps by learning from collections of users’ locations sharing the same discretized time. The second proposed model also incorporates time into the learning model, yet takes a further step by considering time at different scales (hour of a day, day of a week, month, and so on). This change in modeling time allows for capturing meaningful patterns over different times scales. The last proposed model incorporates social ties into the learning process to compensate for inactive users who contribute a large volume

Meaningful Learning with Mobile Devices: Pre-Service Class Teachers' Experiences of Mobile Learning in the Outdoors

Science.gov (United States)

Kärki, Tomi; Keinänen, Heli; Tuominen, Anu; Hoikkala, Marianna; Matikainen, Eila; Maijala, Hanna

2018-01-01

The authors consider the use of mobile learning environment ActionTrack in teacher education. Pre-service class teachers' (N = 277) experiences of the mobile learning environment were measured with a 7-point Likert-scale questionnaire based on seven attributes of meaningful learning. Students' ratings for different attributes were analysed…

Mobile P2P Web Services Using SIP

Directory of Open Access Journals (Sweden)

Guido Gehlen

2007-01-01

Full Text Available Telecommunication networks and the Internet are growing together. Peer-to-Peer (P2P services which are originally offered by network providers, like telephony and messaging, are provided through VoIP and Instant Messaging (IM by Internet service providers, too. The IP Multimedia Subsystem (IMS is the answer of the telecommunication industry to this trend and aims at providing Internet P2P and multimedia services controlled by the network operators. The IMS provides mobility and session management as well as message routing, security, and billing.

BROSMAP: A Novel Broadcast Based Secure Mobile Agent Protocol for Distributed Service Applications

Directory of Open Access Journals (Sweden)

Dina Shehada

2017-01-01

Full Text Available Mobile agents are smart programs that migrate from one platform to another to perform the user task. Mobile agents offer flexibility and performance enhancements to systems and service real-time applications. However, security in mobile agent systems is a great concern. In this paper, we propose a novel Broadcast based Secure Mobile Agent Protocol (BROSMAP for distributed service applications that provides mutual authentication, authorization, accountability, nonrepudiation, integrity, and confidentiality. The proposed system also provides protection from man in the middle, replay, repudiation, and modification attacks. We proved the efficiency of the proposed protocol through formal verification with Scyther verification tool.

IMPRESS: medical location-aware decision making during emergencies

Science.gov (United States)

Gkotsis, I.; Eftychidis, G.; Leventakis, G.; Mountzouris, M.; Diagourtas, D.; Kostaridis, A.; Hedel, R.; Olunczek, A.; Hahmann, S.

2017-09-01

Emergency situations and mass casualties involve several agencies and public authorities, which need to gather data from the incident scene and exchange geo-referenced information to provide fast and accurate first aid to the people in need. Tracking patients on their way to the hospitals can prove critical in taking lifesaving decisions. Increased and continuous flow of information combined by vital signs and geographic location of emergency victims can greatly reduce the response time of the medical emergency chain and improve the efficiency of disaster medicine activity. Recent advances in mobile positioning systems and telecommunications are providing the technology needed for the development of location-aware medical applications. IMPRESS is an advanced ICT platform based on adequate technologies for developing location-aware medical response during emergencies. The system incorporates mobile and fixed components that collect field data from diverse sources, support medical location and situation-based services and share information on the patient's transport from the field to the hospitals. In IMPRESS platform tracking of victims, ambulances and emergency services vehicles is integrated with medical, traffic and crisis management information into a common operational picture. The Incident Management component of the system manages operational resources together with patient tracking data that contain vital sign values and patient's status evolution. Thus, it can prioritize emergency transport decisions, based on medical and location-aware information. The solution combines positioning and information gathered and owned by various public services involved in MCIs or large-scale disasters. IMPRESS solution, were validated in field and table top exercises in cooperation with emergency services and hospitals.

Integrating Personalized and Community Services for Mobile Travel Planning and Management

Science.gov (United States)

Yu, Chien-Chih

Personalized and community services have been noted as keys to enhance and facilitate e-tourism as well as mobile applications. This paper aims at proposing an integrated service framework for combining personalized and community functions to support mobile travel planning and management. Major mobile tourism related planning and decision support functions specified include personalized profile management, information search and notification, evaluation and recommendation, do-it-yourself planning and design, community and collaboration management, auction and negotiation, transaction and payment, as well as trip tracking and quality control. A system implementation process with an example prototype is also presented for illustrating the feasibility and effectiveness of the proposed system framework, process model, and development methodology.

Enabling Indoor Location-Based Services

DEFF Research Database (Denmark)

Radaelli, Laura

Indoor spaces have always attracted interest from different scientific disciplines. Relatively recent interest in indoor settings by computer scientists is driven in part by the increasing use of smartphones, which serve as a platform for service delivery and can generate extensive volumes...... of trajectory data that can be used to study how people actually use indoor spaces. In this dissertation, we contribute partial solutions that address challenges in indoor positioning and indoor trajectory management and analysis. The key enabler of indoor location-based services and indoor movement analysis...... is a well-functioning positioning system that can be easily deployed in most public places. Different technologies are able to provide indoor positioning with different accuracy and coverage, but it is difficult to find a technology that by itself can provide good positioning in the many different layouts...

The Player as Author: Exploring the Effects of Mobile Gaming and the Location-Aware Interface on Storytelling

Directory of Open Access Journals (Sweden)

Tim Hetland

2012-02-01

Full Text Available The mobile internet expands the immersive potential of storytelling by introducing electronic games powered by portable, location-aware interfaces. Mobile gaming has become the latest iteration in a decades-long evolution of electronic games that seek to empower the player not just as an avatar in a gameworld but also as a co-author of that gameworld, alongside the game’s original designers. Location-aware interfaces allow players to implicate places in the physical world as part of their gameworld (and vice versa for the first time. In addition to empowering the player as a co-author in the process of constructing a compelling gameworld, then, mobile games eschew linear narrative structures in favor of a cooperative storytelling process that is reliant in part on the player’s experience of place. While such an author-player “worldmaking” approach to storytelling is not new, mobile games evolve the process beyond what has yet been possible within the technical and physical constraints of the traditional video gaming format. Location-aware interfaces allow mobile games to extend the worldmaking process beyond the screen and into the physical world, co-opting the player’s sensory experiences of real-world places as potential storytelling tools. In our essay, we theorize the unique storytelling potential of mobile games while describing our experience attempting to harness that potential through the design and implementation of our hybrid-reality game University of Death.

The dynamics of entrepreneurship in ICT: case of mobile phones downstream services in Kenya

NARCIS (Netherlands)

R.N. Kanothi (Raphael)

2009-01-01

textabstractThe research paper explores the extent to which mobile phones downstream services, defined here as those provided using the existing connectivity, are generating opportunities for entrepreneurship development in Kenya. After identifying the services of mobile payphones, money transfer

Mobile technology and academic libraries innovative services for research and learning

CERN Document Server

Canuel, Robin

2017-01-01

In seventeen chapters ranging from A Mobile-First Library Site Redesign to Mobile Technology Support for Field Research to Virtual Reality Library Environments, Mobile Technology and Academic Libraries explores how librarians around the world are working to adapt their spaces, collections, teaching, and services to the new possibilities presented by mobile technology. This is a detailed and thorough examination of technology that's emerging now and how to incorporate it into your library to help the students and researchers of both today and tomorrow.

Mobile audience interaction – explaining the adoption of new mobile service applications in socially enriched environments

DEFF Research Database (Denmark)

Faullant, Rita; Fuller, Johan; Matzler, Kurt

2012-01-01

be triggered by factors that have not been foreseen by traditional models of acceptance and diffusion. The technology acceptance model and the theory of planned behavior are the two main models discussed in the literature, both of which have been tested mainly in work or organizational contexts. Mobile...... this fact and report here on the results of an online study which investigates intentions regarding adoption of a new mobile service application, namely mobile voting. The study was carried out in an online cinema community. Possible moderating effects of involvement, cell phone skills, and consumers...

Learning to locate an odour source with a mobile robot

OpenAIRE

Duckett, T.; Axelsson, M.; Saffiotti, A.

2001-01-01

We address the problem of enabling a mobile robot to locate a stationary odour source using an electronic nose constructed from gas sensors. On the hardware side, we use a stereo nose architecture consisting of two parallel chambers, each containing an identical set of sensors. On the software side, we use a recurrent artificial neural network to learn the direction to a stationary source from a time series of sensor readings. This contrasts with previous approaches, that rely on the existenc...

Gender differences in occupational mobility and structure of employment in the British Civil Service.

Science.gov (United States)

Roberts, R; Brunner, E; White, I; Marmot, M

1993-12-01

In all industrialized societies health status in adults has been found to vary with social position. Attempts to explain this are usually grouped under headings of artefact, material, lifestyle and selective mobility of the healthiest. Such attempts have to date been unsuccessful in fully accounting for this relationship, and whilst they have merit have left unconsidered the effects of the process whereby social stratification occurs. The present study is a prelude to subsequent studies that will endeavour to distinguish between three separate influences on health--the effects of current social position, the long term effects stemming from one's initial class position, and the effects of the processes governing mobility. The purpose of our present investigation is to describe patterns of occupational mobility, that will enable us to identify possible predictors of subsequent mobility and therefore to indicate to what extent mobility might be a process governed by social rules. The work presented in this paper comprises part of the Whitehall II study of occupational, social and lifestyle influences upon health in a Civil Service population. Using multiple regression techniques almost half the variation in mobility is modelled in terms of educational level, fathers' social class, gender, marital status, age on entry into the Civil Service, length of time in Civil Service employment and grade of entry into the Civil Service. Using estimates derived from this model it is suggested that a number of sub-groups within the Civil Service suffer adverse mobility (mobility appears particularly restricted for women and for those entering the Civil Service above 30 years of age). The results obtained suggest that the issue of obstructed opportunity at the workplace could become a focus for fruitful investigation, linking issues of personal autonomy, expectations and control to health. A number of methodological problems in this kind of work are considered together with

Mobile satellite services for public safety, disaster mitigation and disaster medicine

Science.gov (United States)

Freibaum, Jerry

1990-01-01

Between 1967 and 1987 nearly three million lives were lost and property damage of $25 to $100 billion resulted form natural disasters that adversely affected more than 829 million people. The social and economic impacts have been staggering and are expected to grow more serious as a result of changing demographic factors. The role that the Mobile Satellite Service can play in the International Decade is discussed. MSS was not available for disaster relief operations during the recent Loma Prieta/San Francisco earthquake. However, the results of a review of the performance of seven other communication services with respect to public sector operations during and shortly after the earthquake are described. The services surveyed were: public and private telephone, mobile radio telephone, noncellular mobile radio, broadcast media, CB radio, ham radio, and government and nongovernment satellite systems. The application of MSS to disaster medicine, particularly with respect to the Armenian earthquake is also discussed.

Entropy-Based Privacy against Profiling of User Mobility

Directory of Open Access Journals (Sweden)

Alicia Rodriguez-Carrion

2015-06-01

Full Text Available Location-based services (LBSs flood mobile phones nowadays, but their use poses an evident privacy risk. The locations accompanying the LBS queries can be exploited by the LBS provider to build the user profile of visited locations, which might disclose sensitive data, such as work or home locations. The classic concept of entropy is widely used to evaluate privacy in these scenarios, where the information is represented as a sequence of independent samples of categorized data. However, since the LBS queries might be sent very frequently, location profiles can be improved by adding temporal dependencies, thus becoming mobility profiles, where location samples are not independent anymore and might disclose the user’s mobility patterns. Since the time dimension is factored in, the classic entropy concept falls short of evaluating the real privacy level, which depends also on the time component. Therefore, we propose to extend the entropy-based privacy metric to the use of the entropy rate to evaluate mobility profiles. Then, two perturbative mechanisms are considered to preserve locations and mobility profiles under gradual utility constraints. We further use the proposed privacy metric and compare it to classic ones to evaluate both synthetic and real mobility profiles when the perturbative methods proposed are applied. The results prove the usefulness of the proposed metric for mobility profiles and the need for tailoring the perturbative methods to the features of mobility profiles in order to improve privacy without completely loosing utility.

PKI-based secure mobile access to electronic health services and data.

Science.gov (United States)

Kambourakis, G; Maglogiannis, I; Rouskas, A

2005-01-01

Recent research works examine the potential employment of public-key cryptography schemes in e-health environments. In such systems, where a Public Key Infrastructure (PKI) is established beforehand, Attribute Certificates (ACs) and public key enabled protocols like TLS, can provide the appropriate mechanisms to effectively support authentication, authorization and confidentiality services. In other words, mutual trust and secure communications between all the stakeholders, namely physicians, patients and e-health service providers, can be successfully established and maintained. Furthermore, as the recently introduced mobile devices with access to computer-based patient record systems are expanding, the need of physicians and nurses to interact increasingly with such systems arises. Considering public key infrastructure requirements for mobile online health networks, this paper discusses the potential use of Attribute Certificates (ACs) in an anticipated trust model. Typical trust interactions among doctors, patients and e-health providers are presented, indicating that resourceful security mechanisms and trust control can be obtained and implemented. The application of attribute certificates to support medical mobile service provision along with the utilization of the de-facto TLS protocol to offer competent confidentiality and authorization services is also presented and evaluated through experimentation, using both the 802.11 WLAN and General Packet Radio Service (GPRS) networks.

E- Service Quality, Ease of Use, Usability and Enjoyment as Antecedents of E-CRM Performance: An Empirical Investigation in Jordan Mobile Phone Services

Directory of Open Access Journals (Sweden)

Khalid Al-Momani

2012-01-01

Full Text Available Electronic Customer relationship management performance E-CRM is a comprehensive business and marketing strategy that integrates people, process, technology and all business activities for attracting and retaining customers over the internet and mobile phone to reduce costs and increase profitability by consolidation the principles of customer loyalty. Therefore, the results of E-CRM performance are repeat purchase, word of mouth, retention, cross buying, brand loyalty and customer satisfaction. The keen competitive in the communication and mobile phone service market place and the increasing numbers of mobile phone users all over the world has influence the researchers to investigate ease of use, usability, enjoyment and e- service quality as antecedents of electronic customer relationship management performance in mobile phone services industry. 488 questionnaires have returned and analyzed. Four factors been tested to investigate the relationship with E-CRM performance. The analysis shown that e- service quality, ease of use and usability was positively significant towards E-CRM performance. Enjoyment has failed to predict E-CRM performance. This paper makes a theoretical and methodological contribution and suggestion for the managers in improving their E-CRM performance in mobile phone service industry. Key words: E-customer relationship management performance, Mobile Phone Services, e- service quality, ease of use, enjoyment and usability.Key words: relationship management, CRM

A Framework For Enhancing Privacy In Location Based Services Using K-Anonymity Model

Directory of Open Access Journals (Sweden)

Jane Mugi

2015-08-01

Full Text Available Abstract This paper presents a framework for enhancing privacy in Location Based Services using K-anonymity model. Users of location based services have to reveal their location information in order to use these services however this has threatened the user privacy. K-anonymity approach has been studied extensively in various forms. However it is only effective when the user location is fixed. When a user moves and continuously sends their location information the location service provider can approximate user trajectory which poses a threat to the trajectory privacy of the user. This framework will ensure that user privacy is enhanced for both snapshot and continuous queries. The efficiency and effectiveness of the proposed framework was evaluated the results indicate that the proposed framework has high success rate and good run time performance.

Customer Satisfaction and Brand Switching Intention: A Study of Mobile Services in Saudi Arabia

Directory of Open Access Journals (Sweden)

Mahmoud ABDEL HAMID SALEH

2015-10-01

Full Text Available The purpose of the study is to investigate first, the relationship between the customer satisfaction and brand switching intention into the Saudi Arabian mobile-service market, and second, the association of service quality, customer service, service pricing, and value-added services with the customer satisfaction. Because of the difficulty of having a frame for the mobile-service customers from their providers, a convenience sample of 350 online respondents with the proper surveying techniques was used in data analysis and testing of the research hypotheses. The findings of the study confirm a significant negative relationship between customer satisfaction and brand switching intention. A 4% percent of the change in brand switching intention could be explained by the change in the customer satisfaction. Only three variables; customer service, service pricing, and service quality are critical determinants for mobile-service customer satisfaction. Customer service explained about 22%, whereas service pricing and service quality explained about 5% and 1% of the change in customer satisfaction respectively. The practical value of this study could be enabling the mobile-service providers in Saudi Arabia to well understand the determinants of the customer satisfaction and its negative relationship with brand switching intention. They may take these findings into account when setting marketing strategies to differentiate their brands to satisfy the customer needs and wants, to retain the existing customers and to attract new customers. These strategies have a positive effect on the company’s customer satisfaction that deter brand switching intention, hence increase the company’s competitiveness, market share and profitability.

Unilateral liberalisation of services: a case study of the mobile phone sector in Bangladesh

OpenAIRE

Yusuf, Mohammad Abu

2017-01-01

Unilateral liberalisation of trade in goods and services has been considered an important policy objective. Most trade in services liberalisation in the developing world has taken place unilaterally; but it is not common among Least Developed Countries (LDCs). Among LDCs Bangladesh is a forerunner in pursuing unilateral liberalisation of mobile telephone services. There is a dearth of empirical studies on Bangladesh’s unilateral liberalisation of mobile phone services and its impact on use...

An analytical study of mobile applications for Hajj and Umrah services

Directory of Open Access Journals (Sweden)

Esam Ali Khan

2018-01-01

Full Text Available Millions of Muslims come to Makkah in Saudi Arabia annually to perform Hajj, an Islamic pilgrimage ritual. Many government, private companies, and individuals provide various services and facilities to overcome difficulties that may be encountered by pilgrims. Currently, technology has gained increasing attention as a major means to provide services. In particular, mobile applications (apps are contemporary technologies used provide various services. Several organizations and individuals developed a number of Islamic apps that can be used on smart mobile devices to assist pilgrims to comfortably perform their Islamic rituals. This paper presents an analytical study of Hajj-related mobile apps offered by Google Play. The collected apps are analyzed using four main criteria, namely, services offered, languages supported, installation rates, and repetition of services and names of the app. The “Hajj ritual” service is found in 68.7% of the target apps, with English as the main language (51.7%. Apps supporting live video services are the most downloaded, with frequency exceeding one million times. Results also reveal a number of repetitive apps in terms of application names and services; for example, 12 apps use the same label “Hajj Guide,” and 11 application versions issued by the same publisher are found. Finally, a case study is performed to rate the quality of 10 apps selected based on five basic criteria, namely, engagement, functionality, aesthetics, information, and subjective quality. “Mutawef” and “Manasikana” apps have achieved the highest average scores, with 2.69 and 2.62 out of 3 acceptance rates, respectively.

Is mobile teleconsulting equivalent to hospital-based telestroke services?

Science.gov (United States)

Audebert, Heinrich J; Boy, Sandra; Jankovits, Ralf; Pilz, Philipp; Klucken, Jochen; Fehm, Nando P; Schenkel, Johannes

2008-12-01

Telemedicine is increasingly used to provide acute stroke expertise for hospitals without full-time neurological services. Teleconsulting through mobile laptop computers may offer more flexibility compared with hospital-based services, but concerns about quality and technical reliability remain. We conducted a controlled trial, allocating hospital-based or mobile teleconsulting in a shift-by-shift sequence and evaluating technical parameters, acceptability, and impact on immediate clinical decisions. Both types of telemedicine workstations were equipped with DICOM (Digital-Imaging-and-Communications-in-Medicine) viewer and videoconference software. The laptop connected by asymmetrical broadband UMTS (Universal-Mobile-Telecommunication-Systems) technology with a one-way spoke-to-hub video transmission, whereas the hospital-based device used landline symmetrical telecommunication, including a 2-way videoconference. One hundred twenty-seven hospital-based and 96 mobile teleconsultations were conducted within 2 months without any technical breakdown. The rates per allocated time were similar with 3.8 and 4.0 per day. No significant differences were found for durations of videoconference (mean: 11+/-3 versus 10+/-3 minutes, P=0.07), DICOM download (3+/-3 versus 4+/-3 minutes, P=0.19), and total duration of teleconsultations (44+/-19 versus 45+/-21 minutes, P=0.98). Technical quality of mobile teleconsultations was rated worse on both sides, but this did not affect the ability to make remote clinical decisions like initiating thrombolysis (17% versus 13% of all, P=0.32). Teleconsultation using a laptop workstation and broadband mobile telecommunication was technically stable and allowed remote clinical decision-making. There remain disadvantages regarding videoconference quality on the hub side and lack of video transmission to the spoke side.

Query Language for Location-Based Services: A Model Checking Approach

Science.gov (United States)

Hoareau, Christian; Satoh, Ichiro

We present a model checking approach to the rationale, implementation, and applications of a query language for location-based services. Such query mechanisms are necessary so that users, objects, and/or services can effectively benefit from the location-awareness of their surrounding environment. The underlying data model is founded on a symbolic model of space organized in a tree structure. Once extended to a semantic model for modal logic, we regard location query processing as a model checking problem, and thus define location queries as hybrid logicbased formulas. Our approach is unique to existing research because it explores the connection between location models and query processing in ubiquitous computing systems, relies on a sound theoretical basis, and provides modal logic-based query mechanisms for expressive searches over a decentralized data structure. A prototype implementation is also presented and will be discussed.

Reciprocal Estimation of Pedestrian Location and Motion State toward a Smartphone Geo-Context Computing Solution

Directory of Open Access Journals (Sweden)

Jingbin Liu

2015-06-01

Full Text Available The rapid advance in mobile communications has made information and services ubiquitously accessible. Location and context information have become essential for the effectiveness of services in the era of mobility. This paper proposes the concept of geo-context that is defined as an integral synthesis of geographical location, human motion state and mobility context. A geo-context computing solution consists of a positioning engine, a motion state recognition engine, and a context inference component. In the geo-context concept, the human motion states and mobility context are associated with the geographical location where they occur. A hybrid geo-context computing solution is implemented that runs on a smartphone, and it utilizes measurements of multiple sensors and signals of opportunity that are available within a smartphone. Pedestrian location and motion states are estimated jointly under the framework of hidden Markov models, and they are used in a reciprocal manner to improve their estimation performance of one another. It is demonstrated that pedestrian location estimation has better accuracy when its motion state is known, and in turn, the performance of motion state recognition can be improved with increasing reliability when the location is given. The geo-context inference is implemented simply with the expert system principle, and more sophisticated approaches will be developed.

Mobile Backend as a Service: the pros and cons of parse

OpenAIRE

Nguyen, Phu

2016-01-01

Using a pre-built backend for an application is an affordable and swift approach to prototyping new application ideas. Mobile Backend as a Service (MBaaS) is the term for pre-built backend systems that developers can use. However, it is advisable to understand the pros and the cons of an MBaaS before deciding to use it. The aim of the thesis was to determine the advantages and disadvantages of using Parse, a provider of mobile backend as a service, in application development. Parse’s defin...

A Service-oriented Approach towards Context-aware Mobile Learning Management Systems

Science.gov (United States)

2010-07-01

towards a pervasive university. Keywords-context-aware computing, service-oriented archi- tecture, mobile computing, elearning , learn management sys- tem I...usage of device- specific features provide support for various ubiquitous and pervasive eLearning scenarios [2][3]. By knowing where the user currently...data from the mobile device towards a context-aware mobile LMS. II. BASIC CONCEPTS For a better understanding of the presented eLearning sce- narios

Mobile Advertising System Based on Augmented Reality and Location-Based Services%基于增强现实和位置服务的手机广告系统

Institute of Scientific and Technical Information of China (English)

叶小榕; 邵晴

2013-01-01

当前国内移动互联网发展极其迅速,但平面广告进入手机广告市场时遇到了一些困难,广告效果并不理想.针对这个现状,本文提出新的解决思路:利用现实增强和位置服务等技术,借鉴和运用ARToolKit、Hadoop、Blender、min3D等多个开源软件模块化设计开发了基于安卓(Android)平台的手机广告系统.系统包括手机客户端和服务器端两大部分,手机客户端负责从平面广告中识别二维码,定位当前手机的位置坐标,然后将用户信息、二维码和位置坐标发送给服务器端；服务器端接收后,通过范围搜索算法检索地图数据库和虚拟影像文件库,根据地域的不同得到对应的3D虚拟影像广告文件,将其回传给手机,手机客户端就能显示出3D虚拟影像广告了.此系统使平面广告通过二维码在手机中显示出3D虚拟影像效果,还能根据手机所在地域动态投放不同广告,增加了广告的吸引力,使手机广告更具有针对性、点击率更高、更有效果.%The mobile internet in China is under very rapid development, but the print advertisement encounters some difficulties to enter the mobile advertising market, lack of desirable effects. This paper proposes a new solution. Based on the Android platform, a mobile advertising system is designed, which takes advantage of technologies such as the augmented reality and the location based services, with the adoption of the ARToolKit, Hadoop, Blender, min3D and other open source software modularization designs. This system consists of two parts: the mobile client side and the server side. In the first step, the mobile client is responsible to recognize the two-dimensional codes from the print advertisement, and to locate the coordinates of the current location of the phone. Then these data are sent to the server. In the second step, the server using the scope of the search algorithm obtains the corresponding 3D virtual image advertisement

NIOSH Mobile Emergency Medical Service (EMS) Work Environment Laboratory

Data.gov (United States)

Federal Laboratory Consortium — The NIOSH Mobile Emergency Medical Service (EMS) Work Environment Laboratory is a 2005 Wheeled Coach Type III ambulance mounted on a Ford E-450 cut-away van chassis....

Analysis of Log File Data to Understand Mobile Service Context and Usage Patterns

Directory of Open Access Journals (Sweden)

Bernhard Klein

2013-09-01

Full Text Available Several mobile acceptance models exist today that focus on user interface handling and usage frequency evaluation. Since mobile applications reach much deeper into everyday life, it is however important to better consider user behaviour for the service evaluation. In this paper we introduce the Behaviour Assessment Model (BAM, which is designed to gaining insights about how well services enable, enhance and replace human activities. More specifically, the basic columns of the evaluation framework concentrate on (1 service actuation in relation to the current user context, (2 the balance between service usage effort and benefit, and (3 the degree to which community knowledge can be exploited. The evaluation is guided by a process model that specifies individual steps of data capturing, aggregation, and final assessment. The BAM helps to gain stronger insights regarding characteristic usage hotspots, frequent usage patterns, and leveraging of networking effects showing more realistically the strengths and weaknesses of mobile services

Factors influencing the adoption of mobile gaming services

NARCIS (Netherlands)

Kleijnen, M.; Ruyter, de J.C.; Wetzels, M.G.M.; Mennecke, B.E.; Strader, T.J.

2002-01-01

The current chapter focuses the adoption process of mobile gaming. After providing a brief introduction to the topic of m-commerece and m-services, several relevant adaption factors are highlighted. These factors have been researched emperically, via conjoint study conducted in the Netherlands. The

Rural patients' access to mobile phones and willingness to receive mobile phone-based pharmacy and other health technology services: a pilot study.

Science.gov (United States)

Sankaranarayanan, Jayashri; Sallach, Rory E

2014-02-01

This pilot study explores the patient-centered demand for mobile phone-based health (mobile health [m-health]) services in the rural United States by documenting rural patients' access to mobile phones and patients' willingness to receive m-health services. An anonymous institutional review board-approved survey was completed by patients visiting two rural pharmacies in Nebraska from August to October 2011. Patients who volunteered to complete the survey provided their demographic data, disease state information, health status, mobile phone access, and willingness to receive (in terms of using and giving time to) m-health services. The majority of the 24 survey respondents were 19-40 years old (52%), female (88%), married (63%), with excellent to very good health status (63%), with no comorbidities (83%), with ≤$100 monthly medication expenses (80%), with private insurance (78%), living within 5 miles of their pharmacy (71%), and reporting that m-health services are important to them (75%; 12/16). Approximately 95%, 81%, 73%, and 55% of respondents reported access to a mobile phone, voice mails, text messaging, and mobile phone applications, respectively. Of the respondents, 65%, 57%, 52%, and 48% were willing to receive prerecorded messages for appointment reminders from the doctor, disease information, medication use/self-care information, and symptom monitoring information, respectively. In total, 70%, 63%, 61%, 54%, and 50% were willing to receive prerecorded messages from the pharmacist containing contact requests, new/refill prescription reminders, information on medication problems, reviewing/monitoring of medication use, and medication self-management/preventive screenings/immunizations, respectively. Of 44% (7/16) respondents willing to give time for m-health services, 83% were willing to give 15 min, and 17% were willing to give 30 min every month. By demonstrating rural patients' demand for m-health (including pharmacy) services, this is one of the

Mobile Platforms and Development Environments

CERN Document Server

Helal, Sumi; Li, Wengdong

2012-01-01

Mobile platform development has lately become a technological war zone with extremely dynamic and fluid movement, especially in the smart phone and tablet market space. This Synthesis lecture is a guide to the latest developments of the key mobile platforms that are shaping the mobile platform industry. The book covers the three currently dominant native platforms -- iOS, Android and Windows Phone -- along with the device-agnostic HTML5 mobile web platform. The lecture also covers location-based services (LBS) which can be considered as a platform in its own right. The lecture utilizes a sampl

Mobile phone applications and the utilization of library services in ...

African Journals Online (AJOL)

Mobile phone applications and the utilization of library services in the university of Calabar library, Calabar, Nigeria. ... Global Journal of Educational Research ... The findings revealed that there was a significant relationship between Tweeter apps and the utilization of library services, (r=0.57*, P<.05, df=223, rcritical=.

Towards Energy Efficient and Shared Mobility Services

Energy Technology Data Exchange (ETDEWEB)

Rames, Clement L [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

2017-10-24

Throughout the 20th century, automobiles have shaped urban and suburban landscapes, especially in North America. Globally, the car-centric transportation paradigm has contributed to unprecedented issues in terms of air quality, fossil-fuel dependence, carbon emissions lock-in, traffic congestion, road safety, parking scarcity, serious public health concerns, and socioeconomic inequality. Nonetheless, in the United States the percentage of single-occupant vehicle (SOV) commuters has continued to rise since 1960 while the proportion of carpooling has decreased by more than half since 1980. Evolving mobility services, in conjunction with new behavioral insights, have motivated recent inquiries in how to best foster sustainable growth while reducing traffic congestion and improving health outcomes. Few studies have assessed their true effectiveness, unanticipated effects (e.g., 'dead-head' or 'empty-vehicle' ride-hailing trips) or measured their impact on a specific city (e.g., modal shift, changes in personal miles traveled/vehicle miles traveled). This effort aims to answer the following questions: to what extent can shared mobility help invert the trend of increasing SOV trips? What are the energy risks and benefits of shared mobility? How do interactions between technology, policy, urban design, and behavioral change shape the transition to energy-efficient transportation? To this end, an assessment framework for sustainable urban mobility is developed, incorporating behavioral metrics (percent active transportation, percent transit ridership, percent shared trips), energy use (vehicle miles traveled per capita, percent SOV trips) and urban planning (population density, average commute time). We apply this framework to three cities (Denver, CO; San Francisco, CA; and Paris, France) to evaluate the sustainability of their transportation systems and explore their potential for shared mobility. The influence of incentives, social norms, and public