Abstract
Video-on-demand (VoD) services based on the peer-to-peer (P2P) approach become very attractive in recent years, due to the simplicity and low-cost in deploying the system. In a P2P video delivery system, the video stream needed by a peer is supplied by one or more peers, which cache the needed segments. However, most of the previous systems did not address the supplier discovery issue. They mainly assumed there is an index service for peers to query the suppliers in the systems. In this thesis, we consider a streaming system in which a streaming chaining system is built on top of a fully decentralized P2P network. As peers join or fail in the system, a decentralized algorithm using a special peering structure is used for supplier recovery. This structure can reduce the message overhead in discovering the suppliers and enhance the query successful rate. We have conducted simulation to evaluate the performance of the proposed system.