F. Pinto, N. Carapeto, Antonio Videira, Teresa Frazão, Mário Homem
{"title":"Context-Aware Multimedia Distribution to Mobile Social Communities","authors":"F. Pinto, N. Carapeto, Antonio Videira, Teresa Frazão, Mário Homem","doi":"10.4018/jhcr.2013070104","DOIUrl":"https://doi.org/10.4018/jhcr.2013070104","url":null,"abstract":"The work here presented introduces a next generation context-aware architecture for social networking multimedia distribution. It enhances the Multimedia Broadcast Multicast Service MBMS and the Evolved MBMS E-MBMS systems by adding users' situation knowledge on their assessments allowing Mobile Operators to offer personalized services delivered over optimized networks. Furthermore, it evolves IP Multimedia Subsystem IMS with specific functionalities to control the context information and to manage MBMS and E-MBMS bearers. The proposed framework was tested and the results are here presented. A clever content sharing in mobile communities can be the basis of the famous killer application that Mobile Operators are still looking for.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129338489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mobile Government in Jordan: Is It a Step in the Right Direction?","authors":"S. Al-masaeed, S. Love","doi":"10.4018/jhcr.2013070105","DOIUrl":"https://doi.org/10.4018/jhcr.2013070105","url":null,"abstract":"Mobile government M-government is a new delivery channel for governments to provide timely information and services ubiquitously to residents, businesses and other government departments through mobile devices. Developing countries have a higher mobile penetration rate than the fixed line internet rates which opens doors of opportunities for these countries to bridge the digital gab and gain a better reach through M-government. This paper measures the Jordanian citizens' awareness of launching a mobile government M-government portal in Jordan and investigates their attitude towards it. Furthermore, this study captured the government perspective in regards to launching the mobile government portal and citizens' awareness of that. The results showed that Jordanians have a positive attitude towards mobile government; additionally the results also identified the main barriers of using mobile internet and electronic government E-government services in Jordan and proposed a success factors model for mobile government in Jordan.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"402 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123394521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Automatic Usability Evaluation of Mobile Web Pages with XML","authors":"Ankita Kohli, Chunying Zhao, Jun Kong","doi":"10.4018/jhcr.2013070102","DOIUrl":"https://doi.org/10.4018/jhcr.2013070102","url":null,"abstract":"Recently, mobile browsing on the World Wide Web is growing rapidly. The growth has created a surge in the number of Web pages designed for mobile devices. To increase the usability of mobile browsing, the Mobile Web Best Practices have been proposed to guide the development of mobile-friendly Web pages. In this paper, the mobileOK checker, a free service provided by W3C, is used to automatically inspect the conformance of 46 popular mobile Web sites to the Mobile Web Best Practices. We analyze the evaluation results and provide suggestions for improving the design of mobile Web sites. In mobile browsing, different mobile devices have different screen sizes, layout structures, and styles to represent Web contents. Furthermore, mobile devices are developing fast. The diversity and fast development of mobile devices cause the mobile design guidelines changing over time. However, the mobileOK checker is not flexible to include new guidelines or customize a best practice rule to fit a specific mobile browsing scenario. To solve this problem, this paper presents a generic approach to represent the mobile design guidelines through an XML schema. Using the XML schema provides the flexibly to support evolving guidelines in an open format. To evaluate our approach, a prototype, WPChecker, has been developed.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121760582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mobile Web 2.0 Integration","authors":"T. Cochrane, I. Flitta","doi":"10.4018/jhcr.2013070101","DOIUrl":"https://doi.org/10.4018/jhcr.2013070101","url":null,"abstract":"Web 2.0 tools provide a wide variety of collaboration and communication tools that can be appropriated within education to facilitate student-generated learning contexts and sharing student-generated content as key elements of social constructivist learning environments or Pedagogy 2.0. \"Social software allows students to participate in distributed research communities that extend spatially beyond their classroom and school, temporally beyond a particular class session or term, and technologically beyond the tools and resources that the school makes available to the students.\" Mejias, 2006, p1. This paper illustrates this by describing and evaluating the impact of the introduction of web 2.0 and mlearning to facilitate student eportfolios within the context of a first year Bachelor of Design and Visual Arts course in New Zealand Unitec. Core web 2.0 social software tools used in establishing students' web 2.0 eportfolios included: Vox, Qik, Picasaweb, Prezi, Google Docs, and YouTube. The participating lecturers and the technology steward also used these web 2.0 tools to collaborate on the design of the project. The paper reflects upon the impact of the participants' previous web 2.0 experience and the use of these tools to facilitate student-generated content and at the same time to act as catalysts for pedagogical change. The project is evaluated as an action research cycle within a framework of longitudinal action research investigating the impact of mobile web 2.0 on higher education from 2006 to the present.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114291217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Intelligent Bandwidth Allocation of IPTV Streams with Bitstream Complexity Measures","authors":"S. Moiron, R. Razavi, M. Fleury, M. Ghanbari","doi":"10.4018/jhcr.2013070103","DOIUrl":"https://doi.org/10.4018/jhcr.2013070103","url":null,"abstract":"IPTV video services are increasingly being considered for delivery to mobile devices over broadband wireless access networks. The IPTV streams or channels are multiplexed together for transport across an IP core network prior to distribution across the access network. According to the type of access network, prior bandwidth constraints exist that restrict the multiplex data-rate. This paper presents a bandwidth allocation scheme based on content complexity to equalize the overall video quality of the IPTV sub-streams, in effect a form of statistical multiplexing. Bandwidth adaptation is achieved through a bank of bit-rate transcoders. Complexity metrics serve to estimate the appropriate bandwidth share for each stream, prior to distribution over a wireless or ADSL access network. These metrics are derived after entropy decoding of the input compressed bit-streams, without the delay resulting from a full decode. Fuzzy-logic control serves to adjust the balance between spatial and temporal coding complexity. The paper examines constant and varying bandwidth scenarios. Experimental results show a significant overall gain in video quality in comparison to a fixed bandwidth allocation.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125981126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Avraham Klausner, A. Trachtenberg, D. Starobinski, M. Horenstein
{"title":"An Overview of the Capabilities and Limitations of Smartphone Sensors","authors":"Avraham Klausner, A. Trachtenberg, D. Starobinski, M. Horenstein","doi":"10.4018/jhcr.2013040105","DOIUrl":"https://doi.org/10.4018/jhcr.2013040105","url":null,"abstract":"Few technical details are available about the various sensors embedded in modern smartphones, and what details are available can be hard to assemble and interpret by the broader technical community that uses these devices. Since the physical and electromagnetic aspects of the sensors' operation can significantly affect the analysis and use of their data, it is essential for those who rely on these data to understand these details. As such, the authors provide a simplified and yet technically precise explanation of some of the sensors found on the Motorola Droid, which are representative of sensors found in most smartphones. The authors specifically explain its proximity sensor, Hall effect magnetometer, capacitive accelerometer, orientation sensor, and light sensor. Each sensor is described using illustrations and experiments that are provided to demonstrate some unexpected behaviors.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123664540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Hybrid Network Emergency Communication Model","authors":"Abdussalam Baryun, K. Al-Begain, D. Villa","doi":"10.4018/jhcr.2013040102","DOIUrl":"https://doi.org/10.4018/jhcr.2013040102","url":null,"abstract":"To communicate within disaster scenarios, different devices/systems need to cooperate with specific protocols. The key communication protocol needs to provide interoperability among these systems and provide the solution for emergency services. The paper studies the hybrid network disaster recovery HNDR systems and classifies its communication scenarios and requirements. The authors propose a new networking protocol for the hybrid network, with ability to forward sessions and messages through different transport protocols, and copes with node mobility and node failure. The paper considers heterogeneous network disaster recovery scenario and proposes a cost effective and easy to deploy hybrid network emergency communication protocol HNEC. This internetwork protocol is a specific model of the inter-domain messaging IDM protocol for emergency communications. The routing protocol procedure is similar to the reactive AODV procedure but is different in maintaining routes from unpredicted link breaks or node failure. A detailed simulation model with the designed network layer model is used to investigate network delivery rate and end-to-end delay performance. The performance results are analyzed using varying node load, mobility speed, and network size.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124666328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characterizing User Behavior in a European Academic WiFi Network","authors":"E. Zola, F. Barceló","doi":"10.4018/jhcr.2013040104","DOIUrl":"https://doi.org/10.4018/jhcr.2013040104","url":null,"abstract":"Wireless local area networks WLANs are commonplace in many universities. Understanding the trends in the usage of these networks is becoming more important. Interesting results can be extracted about association patterns by analyzing WLAN traces from real scenarios. In this work, the library in the main campus of the Technical University of Catalonia UPC in Barcelona has been studied. Daily and weekly patterns of the WLAN connections are shown. The population accessing the network is mostly composed of infrequent users: half of the population accesses the WLAN once during each month. Many users associate to only one of the twelve possible access points, which means that, despite the widespread use of lightweight devices, many users are static. The results of this analysis provide general tools for characterizing campus-wide WLAN and a better understanding of usage and performance issues in a mature wireless network.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131024426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Handset-Based Data Collection Process and Participant Attitudes","authors":"Juuso Karikoski","doi":"10.4018/jhcr.2012100101","DOIUrl":"https://doi.org/10.4018/jhcr.2012100101","url":null,"abstract":"Handset-based measurements are an emerging method for collecting behavioral data about smartphone users. Setting up these kinds of measurements is challenging because of the personal nature of the data collection device and a lack of standards related to behavioral data and the method as a whole. Privacy issues related to the participants of the data collection are of major importance when dealing with behavioral data. Introduced is the process of collecting handset-based data in the OtaSizzle project in the Aalto University community in Finland together with a literature review of other similar data collection efforts in academia and industry. A survey is also deployed to study the incentives for participation, privacy concern levels and innovativeness of the user group participating in the measurements. This article contributes to the body of knowledge regarding measurements conducted with smartphones and sheds light on participant attitudes about them.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133406224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Lee, A. Rabbi, Noah Root, R. Fazel-Rezai, Jaesoon Choi, P. León, J. Wynne
{"title":"A Heart Monitoring System for a Mobile Device","authors":"D. Lee, A. Rabbi, Noah Root, R. Fazel-Rezai, Jaesoon Choi, P. León, J. Wynne","doi":"10.4018/jhcr.2012100102","DOIUrl":"https://doi.org/10.4018/jhcr.2012100102","url":null,"abstract":"There have been major advances in research and development of devices for the diagnosis of patients in the medical field. A light and portable wireless system to monitor human physiological signals has been always a medical personnel's dream. An e-health monitoring system is a widely used noninvasive diagnosis tool for an ambulatory patient who may be at risk from latent life threatening cardiac abnormalities. The authors proposed a high performance and intelligent wireless measuring e-health monitoring system for a mobile device that is characterized by the small sized and low power consumption. The hardware system consists of an one-chip microcontroller Atmega 128L, a wireless module, and electrocardigram ECG signal preprocessing including filtering, power noise canceling, and level shifting. The software utilizes a recursive filter and preprocessing algorithm to detect ECG signal parameters, i.e., QRS-complex, Q-R-T points, HR, and QT-interval. To easily interface with a mobile device, an analyzer program operates on a Windows mobile OS. This paper described the system that was developed and successfully tested for a wireless transmission of ECG signals to a mobile device.","PeriodicalId":265963,"journal":{"name":"Int. J. Handheld Comput. Res.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126118722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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