P3P: a P2P Overlay Multicast Network for Multimedia Streaming

Abstract—In this paper a new completely distribute architecture for collaborative environment is proposed. We consider the problem of distributing live streaming media content without any dedicated infrastructure and the aim of the platform is to provide a distributed environment in which every peer will be able to share all the media required in collaborative sessions i.e., synchronous elearning sessions, video-conferences. . .Our P2P approach allows to scale the required bandwidth with demand (the amount of interested client) and allow the self optimization of the overlay tree structure whichmakes use of the Internet as a low level infrastructure to provide multimedia service to end host. We point out that self-optimizing structure and robustness to peer transience are pivotal goals in collaborative environment in which participants can interact with each other for a long time and some of them can leave the session unexpectedly. In the folowing we present a distributed tree (therefore Peer tree Peer) management protocol that provide QOS optimization, peer failure recovery and, finally, we evaluate it by simulation.