关键词: P2P, 流媒体直播, 编码, 应用层组播, 激励机制

Abstract:

To improve performance of data transmission, a new system model for peertopeer stream (NSMP2PS) is built. The architecture and design principles for NSMP2PS are described. Introducing the network coding mechanism, the storeandforward capability of data is improved. Using the management strategy for better nodes and failure nodes algorithms, the NSMP2PS can be used to avoid the problem of unbalanced load for multicast tree. On the other hand, the optimal multicast tree structure and the continuity of players can be guaranteed by its selfoptimizing process nodes. The incentive mechanism is introduced to encourage more selfish nodes transmitting and sharing resources and data, therefore, the data quality and the overall performance of live system are also improved. 68-72