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Next generation wireless networks are supposed to provide best quality services, minimum delays which results in reduce total access cost, increased coverage and more reliable wireless access to the users at anytime and anywhere. One of the most challenging problems facing deployment of 4G technology is to support quality of service (QoS). In this paper, architecture (4UATT) is proposed along with...
The media streaming technology is very appropriate for client applications running on mobile telephones due to its limited memory and bandwidth. A serious problem that has not been fully solved is the control of temporary client disconnections due to the lack of coverage, because it causes the closing of the current session and forces the opening of a new one with the corresponding loss of efficiency...
The ubiquitous use of mobile phones motivates the idea of dasiaparticipatory sensingpsila with a cell-phone based sensor network. In our work, we consider a layered architecture for a query-based urban monitoring application using mobile phones. The key contribution of the paper is a Data-Aware Layered Waiting (DA-LW) time aggregation protocol in cell-phone based wireless sensor networks. To motivate...
Considering the high packet losses and low, varying bandwidth of GPRS/EDGE network and limited computation power of handheld devices, we present and implement a novel SVC video-on-demand system for hand-held devices over GPRS/EDGE network. For the purpose of handling varying bitrate, we propose a priority based layer switching (PLS) adaptation scheme for SVC stream, which not only performs online...
Recent advances in mobile communications and computing and strong interest of the scientific community in the grid have led to research into the mobile grid. Based on a realistic mobile grid architecture we formulate the problem of job scheduling in a mobile environment and investigate key design decisions with respect to fundamental performance metrics. We extend previous work by introducing a new...
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