基于邻居节点带宽监测的P2P内容多播  

P2P Content Multicast Based on Neighbor Peers' Bandwidth Monitoring

作　　者：廖枝平[1] 刘嵩[2] 涂立[1] 

机构地区：[1]湖南城市学院计算机科学系,湖南益阳413000 [2]湖南城市学院经济管理系,湖南益阳413000

出　　处：《计算机与现代化》2011年第6期52-56,共5页Computer and Modernization

基　　金：湖南省教育厅科技计划资助项目(09C203);湖南城市学院科技计划资助项目(07B030)

摘　　要：P2P内容多播系统常常因受到搭便车等自私节点行为的影响而导致性能急剧下降,为此本文采用邻居节点进行带宽监测,并根据监测结果管理彼此间的邻接关系,实现在自私环境下大规模内容的有效多播分发。对所提出的算法协议进行较详细的描述,性能分析与仿真表明该协议所导致的系统中用户节点与分发服务器的网络负载适中且较稳定。The performance of Peer-to-Peer（P2P） content multicast systems usually degrades dramatically because of peer＇s selfish behaviors such as free-riding.To solve this problem,the paper suggests that each peer monitors its neighbors＇ bandwidth and manages connections with them according to the results of monitoring,so as to distribute efficiently the massive content to all peers in selfish environments.The proposed protocol is explained in details and performance analyzing and simulating show that the protocol incurs a moderate and constant network load on peers and distribution server in the system.

关 键 词：P2P 内容多播 激励机制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]