一种新型P2P应用层并行路径选择机制  

A Novel Parallel Path Selection Algorithm and Mechanism of P2P Layer

作　　者：刘佳[1] 张晨 魏世民[1] 

机构地区：[1]北京邮电大学自动化学院,北京100876 [2]中国移动通信集团设计院有限公司研究所,北京100080

出　　处：《通信技术》2011年第1期112-114,共3页Communications Technology

摘　　要：在网格业务网络或者点对点(P2P)网络中使用并行路径来实现文件传输业务时,为了仅依靠P2P层的技术在多条可行的并行路径间选择较优并行路径,切实提高业务的稳定性,可靠性和吞吐率,提出了"弱相关路径"的概念,采用被动测量方法,设计了P2P层并行路径间相关性的测量算法和测量机制;进而,设计了基于测量结果的路径选择机制。使用网络模拟器NS-2对此算法和机制进行了仿真实验,实验结果证明此算法和机制能够增强并行路径文件传输的平均性能。For realization of parallel file transfer services in the grid business network or the P2P network,and in order to select optimal paths for improving reliability and stability of the services,a novel mechanism P2P layer is proposed.In this mechanism,a new concept of ＂weak relative paths＂ is suggested and the measurement algorithm based on passive measurement method is designed.Simulation results indicate that the proposed algorithm and mechanism could enhance the performance of parallel file transfer services.

关 键 词：并行路径选择 被动测量 点对点技术 下一代网络 

分 类 号：TN915.09[电子电信—通信与信息系统]