Cross-layered implementation of multilayered coded video streaming

Abstract

Video streaming over wireless network is challenging because of its quality of service (QOS) requirement. It needs to adapt with respect to the available bandwidth of network connection which is unpredictable in most occasions. In order to maintain a continuous flow of video without any disconnection or large buffering at the receiver, a new algorithm called the Multi-Layered Coding with Cross Layer Adaptation (MLC-CLA) algorithm is proposed. The input video is coded at different level stored at the sender constituting multilayer approach. The MLC-CLA judicially selects one of these layer based on the feedback from the receiver and stream them, thereby adapting to the changing environment of the network. The simulated result of the MLC-CLA algorithm shows a better Peak-Signal to Noise Ratio (PSNR) for a given sample video. We also compared the performance of the proposed algorithm with non-cross layer approach.