线性网络编码及其在P2P网络中的应用研究

Linear network coding and its application research in P2P network

通过对网络编码理论和现有P2P文件共享系统的深入研究,设计了一种基于线性网络编码的P2P文件共享系统。该系统的优点是解决了现有P2P文件共享系统中存在的不能充分利用网络资源、"种子"节点突然退出造成文件下载不完等问题。实验结果表明,该系统克服了现有系统中存在的问题,同时也提高了整个系统的吞吐量并增强了系统的稳定性。

By studying up on network coding theory and the existed P2P file-sharing system, this paper proposes a feasible scheme for P2P file-sharing system based on linear network coding. The advantages of this system are that it can solve the problems of the existed P2P file-sharing system that network resources can not be sufficiently utilized and tile source file can not be downloaded completely after the ＂seeder＂ node suddenly quit the system. Experiment shows that this system could eon＇ectly solve these problems, improve the throughput of P2P network and enhance the robustness of system.