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146 results for “mobile environment”
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Research ArticleOpen accessPhrase in the titleIMPROVING DATA AVAILABILITY IN MOBILE ENVIRONMENT USING DATA ALLOCATIONMoaiad Ahmad Khder, Zulaiha Ali Othman, Abdullah Mohd Zin, Salha AbdullahData distribution is one of the crucial issues in Data Base Management Systems (DBMS) in general and in Mobile environment in Particular. It is important because, if not properly managed, it will cause reduction in data availability, which in turn causes more rejections in transactions. Replication algorithms (e.g., CCM) are used to improve data availability. However, the database replication algorithms … …Journal of Computer Science, Vol. 9, Issue 8 · 5 Jul 2013 · 6,860 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleEffective Hierarchical Information Management in Mobile EnvironmentJinhyung Kim, Myunggwon Hwang, Hanmin JungProblem statement: As performance of mobile devices is developed highly, several kinds of data is stored in mobile devices. For effective data management and information retrieval, some researches to apply ontology concept to mobile devices are progressed. However, in conventional researches, they apply conventional ontology storage structure used in PC environment to mobile platform. Conclusion/Recommendations: Therefore, performance of search about … …Journal of Computer Science, Vol. 8, Issue 3 · 7 Jan 2012 · 6,885 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleCLUSTER BASED CACHE CONSISTENCY USING AGENT TECHNIQUE IN MOBILE ENVIRONMENTShanmugarathinam Ganesarathinam, Vivekanandan KanniappanCaching is an essential mechanism in mobile environment. Mobile node makes access dynamic changing data object to their server and to get the interested data to keep their own as local copies in the cache. If the server database is updated, the data cached in mobile client is invalidated and it becomes inconsistent between client and server. In this study … …Journal of Computer Science, Vol. 10, Issue 4 · 19 Dec 2013 · 6,487 accessesView PDFCite
Research ArticleOpen accessPhrase in the titlePerformance Evaluation of Interference Mitigation Techniques in 4G Networks in Mobile EnvironmentsEmna Hajlaoui, Abdelhakim Khlifi, Samia Dardouri et al.Intercell Interference (ICI) is one of the major factors that limit the performance and Quality of Service (QoS) of 4G wireless networks (Long Term Evolution/LTE-Advanced). For this reason, heterogeneous networks present an attractive solution for the improvement of mobile network’s services to provide better data rates and coverage. So, a key scheme in 4G traffic processing is the interference mitigation … …Journal of Computer Science, Vol. 15, Issue 12 · 25 Dec 2019 · 7,317 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMobile Robot: SLAM Implementation for Unknown Indoor Environment ExplorationMohamed Emharraf, Mohammed Bourhaleb, Mohammed Saber, Mohammed RahmounThe autonomy is the most crucial criteria in mobile robots. This operation aims to offer the ability of finding the position and build a map of the environment to the robot. Many methods have been proposed to solve this problem. In this study, an implementation of SLAM approach for unknown indoor environment exploring by mobile robot is proposed. In fact, … …Journal of Computer Science, Vol. 12, Issue 2 · 26 Mar 2016 · 7,301 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA VISION-BASED TRAVELLED DISTANCE ESTIMATION ALGORITHM IN AN INDOOR ENVIRONMENT USING A MOBILE ROBOTMamadou Diop, Chot Hun Lim, Tien Sze Lim, Lee-Yeng OngAutonomous navigation for a mobile robot still remains as a challenging area to be explored. In an indoor environment, while GPS is unavailable and wheel encoder suffer from error accumulation due to wheel slips, vision-based travelled distance estimation can be considered as an alternative approach for more accurate measurements. This study presents a new algorithm to estimate travelled distance of … …Journal of Computer Science, Vol. 10, Issue 12 · 26 Dec 2014 · 8,700 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStudents' Awareness and Requirements of Mobile Learning Services in the Higher Education EnvironmentNaji Shukri Alzaza, Abdul Razak YaakubProblem statement: M-learning is considered as the next generation of e-learning using mobile technologies. Students’ awareness of such technology is one of the most focuses for success adoption. This study aims to investigate students’ awareness and requirements of mobile learning services among Malaysian students in the higher education environment. Approach: The study found that the higher education environment now has … …American Journal of Economics and Business Administration, Vol. 3, Issue 1 · 26 Jan 2011 · 18,665 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStudent's Mobile Information Prototype for the Higher Education EnvironmentNaji Shukri Alzaza, Abdul Razak YaakubProblem statement: M-learning is considered as the next form of e-learning using mobile technologies to facilitate education for teachers and learners. Students need to keep in touch with their education services anytime regardless the place. Engaging the m-learning services in the Malaysian higher education will improve the availability of education. This study discusses the development and user’s evaluation of Student’s … …American Journal of Economics and Business Administration, Vol. 3, Issue 1 · 26 Jan 2011 · 8,766 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleVision-Based Real-Time Positioning and Autonomous Navigation System Using Mobile Robot in Indoor EnvironmentsDiop Mamadou, Lim Chot Hun, Lim Tien Sze, Ong Lee YengResearch toward unmanned mobile robot navigation has gained significant importance in the last decade due to its potential applications in the location-based services industry. The increase in construction of large space indoor buildings has made difficulty for humans to operate within such environments. In this study, a mobile robot's indoor navigation algorithm is developed with vision cameras. Using two monocular … …American Journal of Applied Sciences, Vol. 13, Issue 5 · 17 May 2016 · 7,317 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCache Management for Concurrent Transaction Execution in Mobile Wireless EnvironmentJ.C. Miraclin Joyce Pamila, K. ThanushkodiProblem statement: Improvement in mobile communication technology and increased capability of mobile devices has made transaction processing possible with mobile devices. Transactions access services provided by the data server connected to the packet data network. Direct data access may overload the network and server. Data items are cached to improve data availability. The cache should be managed and maintained effectively … …Journal of Computer Science, Vol. 7, Issue 3 · 7 Mar 2011 · 6,809 accessesView PDFCite