An optimized P2P based algorithm using SVC for media streaming

Currently, it´s a challenge to provide differentiated quality media services in Internet, especially under peer-to-peer (P2P) model. Most P2P based algorithms are not support the service scalability. In this paper, we propose an optimized algorithm, which integrate an excellent P2P algorithm SIM and scalable video coding (SVC) technology for media streaming (SPM). Hosts in SPM can specify media quality by joining into different categories, and then receive base layer data of media and one or several enhancement layers to have a specified quality. And also we propose a continuity priority scheme to minimize the interruption of media service. Simulations results show that it can hold both advantages of SIM and SVC.