Joint distortion aware opportunistic routing and transmission rate assignment for video streaming over wireless mesh networks

In this paper, we propose a joint method of distortion aware opportunistic routing and transmission rate assignment to specifically support video streaming in wireless mesh networks (WMNs). Particularly, we introduce a reduction in reconstructed distortion slope (RDS) metric used for routing algorithm. Based on this metric, each node knows that which is the best successor in the forwarding set by assigning the best transmission rate. As a result, the best path between the sender and the receiver is found to maximize the end-to-end reduction in reconstructed distortion (RRD) for high quality playback. Simulation results are shown to demonstrate that the proposed method significantly improves the quality playback of received video streaming.