A wireless video transmission scheme based on network coding and scalable video coding

摘要

Video streaming over wireless network has a very broad application prospect. However, the quality of video will be seriously deteriorated due to the nature of time-varying and noisy wireless channels. In this paper, we propose a wireless video streaming method based on network coding and scalable video coding (SVC). In order to maximize the throughput and video quality simultaneously, a forwarding node should mix the data packets from different streams and flows according to their importance values, which are provided directly by a SVC-coded video stream. Simulation results show that our method can improve both video quality and throughput significantly.