Video Streaming on Multiple Routing Networks

In this paper, we present a simulation study of network coding schemes for multi-layer video streaming on multiple hop wireless networks. We consider in this study mainly two points:  the packet loss due to the wireless environment and the unequal importance of scalable video packets. First we study generation based network coding schemes with static and adaptive redundancy adaptation on packet loss rate. Second we evaluate an extension of the Expanding Window concept with a hop-by-hop coding to highlight the effect of layer discrimination for scalable video streaming. Extensive simulations have been carried out using ns-3 for two different video test sequences with quality scalability. The simulations results show that adaptive redundancy can decrease the packet loss rate and introduce less overhead while Expanding Window can improve the PSNR of the video by reducing the base layer packet loss.