基于P2P流媒体点播系统的研究

Research about VOD Service Based on P2P Streaming Media

基于P2P的流媒体视频点播服务是现在影视服务的另一种模式。基于P2P流媒体点播系统由内容服务器、目录服务器和P2P节点构成。当前播放节点下载得到的媒体片段能为后续子节点提供相同的媒体点播服务,就能减轻了服务器的负载,达到低带宽下更多节点共同播放同一个媒体文件的目的。进行模拟实现证明服务器负载下降到原来30%左右。

VOD service based on P2P streaming media for television service is now an alternative model. The whole system includes content server, directory server and P2P nodes Providing Downloaded media fragment from father node to the follow-up nodes will be able to reduce the server payload. Simulation verifies that the original content server payload drops to about 30%.