A resource quick search and locating algorithm of P2P VoD system based on skip table mechanism

When design and implement a video-on-demand system on P2P network, due to the play asynchronism among users, the randomicity of the node joining and leaving and the random VCR operations of the users can exacerbate the node dynamics. In this paper, several key techniques of the system are studied. a P2P distributed resource quick search and locating algorithm based on skip table mechanism is presented. The paper has designed and implemented a P2P VoD system based on skip table. Combined with other methods, such as the optimized hybrid schedule strategy, data pre-fetch mechanism, and the urgent download schedule algorithm, it can effectively improve the performance in play continuity and reduce the user´s wait delay. In the end, the paper makes simulation and gives the test results.