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Multimedia multicast is one of the most important, yet challenging, tasks in the current/future networks design. Due to the heterogeneous fading across multicast receivers at any time instant, it is very challenging to design the efficient physical-layer multicast schemes to adapt to the highly varying channel status, while satisfying QoS requirements imposed by higher protocol layers. The multimedia multicast strategy needs to be able to efficiently tradeoff among the throughput, loss rate, and delay QoS requirements for the multimedia applications. To overcome the above problems, we propose a generic framework for adaptive multimedia mutlicasting over wireless fading channels, where we aim at optimizing the system throughput under the diverse QoS constraints. First, we will start with revealing the fundamental optimized tradeoff between multicast throughput and loss rate control. Second, we integrate the statistical delay-bound QoS guarantees into multimedia multicast and develop the optimal joint delay- and loss-QoS driven adaptive multicasting scheme. Finally, we extend the above work into multi-layer video stream multicast and develop the schemes to minimize the wireless resource consumptions, with satisfied QoS constraints and guaranteed synchronous transmission across multi-video layers.