关键词: 对等网络, 视频点播, 模块, 纠错码, 存储调度

Abstract: Peer-to-Peer based Video-on-Demand systems (VoD/P2P) have received a lot of research attention in recent years. Based on practical experience from a real system, the work on VoD/P2P storage consists of three parts. 1) By decomposing the VoD/P2P storage process into key modules, it is able to analyze the functionality and relationships of these modules. 2) A general storage algorithm VSVR is presented, which can represent most of existing data redundancy algorithms and derive new designs. 3) By system modeling, the main objective as well as the key principle of the storage scheduling policy at server side is given.

Key words: P2P, Video on Demand(VoD), model, erasure code, storage scheduling