International Journal Of Engineering And Computer Science
Recently supporting real-time video transmission services with diverse QoS constraints has become one of the essential requirements for wireless communications networks. Consequently, how to efficiently guarantee QoS for video broadcast attracts more and more research attention. However, the unstable wireless environments and the popular layer structured video signals impose a great deal of challenges in delay QoS provisioning. Due to the highly varying wireless channels, the deterministic delay QoS requirements are usually hard to guarantee.