Caching algorithm for streaming media on P2P network

At present, streaming media service is one of the important application of the information technology. P2P network has played an important role in the distribution of large data flow of streaming media in application The bandwidth of network and disk I/O is the main bottleneck to the transferring of real-time streaming media. Data caching technology is widely used in the area as a useful method to solve the problem. This paper proposed a streaming media caching algorithm based on peer to peer network, using the node´s access rate during the certain period of time to choose the caching node, at the same time it determine the size of data caching buffer according to the network´s bandwidth and node´s I/O bandwidth. The experimental results show that this algorithm is much better than other caching algorithm in the merit of reducing network load, reducing data delays and lower caching buffer.