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146 results for “mobile environment”
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Research ArticleOpen accessIn the abstractWeighted Centroid Correction Localization in Cellular SystemsRong-Zheng Li, Xin-Long Luo, Jia-Ru LinProblem statement: There is a large demand for wireless Location-Based Service (LBS) and it is provided by many wireless cellular systems. In process of positioning a Mobile Station (MS), the computing speed is as important as the positioning accuracy and the algorithm should also be resistant to environmental influences. Approach: A new positioning method based on Weighted Centroid Correction Localization … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 1 · 27 Jan 2011 · 8,974 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign and Analysis of Virtual Bus Transport Using Synchronous Digital Hierarchy/Synchronous Optical NetworkingR. Hassan, J. Irvine, I. GloverThis study presented a new data link layer design for the virtual bus architecture. The virtual bus is a hierarchical access network offered a broadcast capability for data and signaling. The proposed of the study is to support Quality of Service (QoS) in network. During study, the most promising technology capable of delivering full service access at high data rates … …Journal of Computer Science, Vol. 4, Issue 12 · 31 Dec 2009 · 6,962 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordReducing Network Bandwidth Cost on End User Resources Consumption in Cloud EnvironmentBuchanagandi Enock Nyamajeje, Huiqun YuCloud computing has been envisioned as the next generation and attributed to the increasing growth of mobile devices. Rapid increment, increase demands and bandwidth cost of access cloud resources became essential user perceive incur higher cost for utilizing cloud services. Since researchers have proposed new methods, service provider need to collaborate to ensure reasonable level of QoS. In various methods, … …Journal of Computer Science, Vol. 11, Issue 9 · 25 Nov 2015 · 7,105 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordA Novel Service Mobility Architecture for SIP EnvironmentsThierno Bah, Samuel Pierre, Roch GlithoLately, the proliferation of small portable devices has driven the introduction of a new mobility concept called service mobility. In order to support service mobility, we introduce a new architecture implementing mechanisms to access end user’s personalized services regardless of his physical location. The proposed architecture leverages on mobile agent technology to transport and move services to the end user’s … …Journal of Computer Science, Vol. 3, Issue 8 · 31 Aug 2007 · 6,818 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordDynamic Reconfiguration of IP Domain Middleware Stacks to Support Multicast Multimedia Distribution in a Heterogeneous EnvironmentKevin Curran, Gerard ParrSeamless connectivity to multiple wireless networks independently of a fixed point is becoming increasingly important for mobile devices however wireless networks differ in bandwidth, size and access costs each requiring protocol functions to enable devices to communicate efficiently. In addition, due to the divergence of users and applications, traditional stacks are frequently enriched with additional functionality such as transport protocol … …Journal of Computer Science, Vol. 1, Issue 1 · 31 Mar 2005 · 6,781 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordPerformance Evaluation of Channel Propagation Models and Developed Model for Mobile CommunicationYahia ZakariaPropagation models represent a solidifying of mathematical equations and algorithms that are used for radio signal propagation prediction in specific regions. In this research different propagation models are analyzed and compared. These propagation models have been proposed at the operating frequency of 3.8 GHz for different transmitter antenna heights in all types of terrain. These propagation models depend on location, … …American Journal of Applied Sciences, Vol. 14, Issue 2 · 25 Feb 2017 · 8,409 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordBluetooth Wireless Network Authentication Using Radio Frequency Communication ProtocolGhossoon M. Waleed, M. Faizal, R. B. Ahmad et al.Problem statement: Bluetooth has emerged as very popular ad hoc network standard today. Bluetooth network applications include wireless synchronization, e-mail/internet/intranet access using local personal computer connections, hidden computing through automated applications and networking. Due to this ability, it is not impossible for the network to receive any attack. Approach: In this study, we developed an algorithm to build new software … …Journal of Computer Science, Vol. 5, Issue 9 · 30 Sep 2009 · 7,819 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordComparison of Bit Error Rate Performance of Multi Tone Channel Utilising De-OQPSK and De-Off Set 16 QAM with Guard IntervalIbrahim A.Z. QatawnehDigital communications systems use Multi tone Channel (MC) transmission techniques with differentially encoded and differentially coherent demodulation. Today there are two principle MC application, one is for the high speed digital subscriber loop and the other is for the broadcasting of digital audio and video signals. In this study the comparison of multi carriers with OQPSK and Offset 16 QAM … …Journal of Computer Science, Vol. 1, Issue 3 · 30 Sep 2005 · 6,847 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordEstimated Greenhouse Gases Emissions from Mobile and Stationary Sources in the Limestone and Basalt Rock Mining in ThailandDubsok Atima, Kittipongvises SuthiratMineral processing can become more environmentally sustainable by integrating practices that reduce all environmental impact of mining operations. Along with pollution problems, global climate change is presently one of the most important environment concerns. This research aimed to identify all potential sources and also compare the net emissions of greenhouse gases (GHGs) from the limestone and basalt rock mining operations … …American Journal of Environmental Sciences, Vol. 12, Issue 5 · 26 Oct 2016 · 8,294 accessesView PDFCite
Research ArticleOpen accessAll words, across the recordTRUSTWORTHY ENABLED RELIABLE COMMUNICATION ARCHITECTURE IN MOBILE AD HOC NETWORKSaravanan Dhavamani, Chandarasekaran Ramasamy, M. G. Sharavana KumarAd hoc networks are widely used in military and other scientific area. There are various kind of routing protocols are available to establish the route, with the proper analyzation one can choose the routing protocol to form their own network with respect to number of nodes and security considerations. The mobility of nodes makes the environment infrastructure less. It also … …Journal of Computer Science, Vol. 10, Issue 7 · 12 Feb 2014 · 6,995 accessesView PDFCite