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Good quality video services always require higher bandwidth. Hence, to provide the video services e.g., multicast/broadcast services (MBSs) and unicast services along with the existing voice, internet, and other background traffic services over the wireless cellular networks, it is required to efficiently manage the wireless resources in order to reduce the overall forced call termination probability,...
Multicast/broadcast services (MBS) are able to provide video services for many users simultaneously. Fixed amount of bandwidth allocation for all of the MBS videos is not effective in terms of bandwidth utilization, overall forced call termination probability, and handover call dropping probability. Therefore, variable bandwidth allocation for the MBS videos can efficiently improve the system performance...
In this paper, the optimal relay station (RS) location and the bandwidth allocation for RS in fixed RS based radio cooperation system are investigated to maximize the data rate when the RS adopts decode-amplify-forward (DAF) scheme. According to the information-theoretic achievable rate maximization policy, the MS selectively accesses base station (BS) or RS, and the optimal RS location is obtained...
Routing between a base station and a mobile station is one of the key issues that should be addressed in multi-hop cellular systems. It should also take into account maximization of the radio resource utilization of the entire system, in which the radio resource of each cell must be shared by the base station and relay stations. In this paper, we propose a joint bandwidth allocation and routing scheme...
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