A P2P Streaming Media System with Node Selection Strategy Combined Topology Aggregation And Bandwidth First Algorithm

摘要

The node selection mechanism is one of the key technologies of P2P Streaming Media System which bases on hybrid P2P network.From current situation,firstly,the paper analyzes basic characteristics of three kinds node selection mechanism,and then propose an improved node selection strategy,which combined topology aggregation and priority of bandwidth algorithm,called Two-Stage algorithm(TS).Simulation program indicates that the performance such as overlay network pressure,media stream quality of serviceof TS algorithm,which is compared to other three kinds of node selection algorithm,is significantly improved.