Throughput adaptation for scalable video multicast in wireless networks

We present a novel method of cross-layer adaptation for scalable video coding (SVC) extension of H.264/AVC multicast in wireless network. Transmission strategy for the single-hop multicast adapts according to wireless channel condition and SVC layer. Efficient transmit power and unequal FEC bit budget allocations are proposed while existing adaptive technique for throughput optimization is applied. We formulated a convex optimization problem to obtain the optimal time-division scheduler for all multicasts such that the wireless network delivers all SVC layers in noisy wireless channels and severe network capacity constraints. The cross-layer adaptation technique is verified by simulation results.