A cross layer resource allocation for multiuser video transmission over wireless networks

摘要: A Multimedia transmission such as video streaming over wireless networks has grown dramatically in recent years. The downlink of multiple sequences to users a shared resource-limited channel, however, is tough task. We face many challenges this area like time-varying channel conditions, limited available resources, bandwidth and power, the different requirements content. This work takes into account nature channels, well importance individual packets, develop cross-layer resource allocation packet scheduling scheme for multiuser networks. Assuming that accurate feedback not at scheduler, random losses combined with complex error concealment receiver make it impossible scheduler determine actual distortion sequence receiver. Therefore, objective optimization minimize expected received sequence, where expectation calculated respect loss probability channel. used order packets queue each user, then gradients are efficiently allocate resources across users.