In this paper

a joint source/channel coding (JSCC) video transmission approach is proposed for the scalable extension of H.264/AVC coding (SVC) standard.The JSCC approach employs a novel reduced trellis algorithm and Lagrangian optimization technique to derive appropriate parts of the SVC stream and protection levels of error-control codes.The proposed algorithm uses a discrete trellis structure.With the layer-based computation method and a simplified structure

it improves computation efficiency by about 20-50 times over the state-of-the-art algorithm.Extensive simulation results show that the proposed JSCC scheme with the efficient algorithm provides same optimized performance with other algorithms under various channel conditions.