Two-stage optimization based multirate transmission for SVC streaming

This paper addressed multirate allocation issues for Scalable Video Coding (SVC) streaming multicasting to heterogeneous receivers. In view of the enhancement layerspsila dependence on the base layer, a two-stage optimization solution is proposed. At the first stage, an improved minimum cost algorithm is introduced to minimize the base layerpsilas delay. Meanwhile, a maximum residual bandwidth (RMB) algorithm is used in the second stage to maximize the video quality. To approximate to the max-flow throughput, network coding is applied in two stages. Finally, the benefits of the proposed scheme are demonstrated in simulations.