计算机工程2011，Vol.37Issue(12)：95-97,3.DOI:10.3969/j.issn.1000-3428.2011.12.032
P2P流媒体直播系统覆盖网拓扑优化算法
Overlay Network Topology Optimization Algorithm for P2P Media Streaming Live System
摘要
Abstract
Considering the heterogeneous features of the peer in Peer-to-Peer(P2P) media streaming system.In this paper, the system nodes are divided into different levels.A neighbor peer selection algorithm is proposed based on random walk, and the transition probability matrix is calculated through the Metropolis-Hastings methods in order to choose a higher level of system nodes with greater probability.Moreover, the overlay network topology optimization algorithm is elaborated.Simulation results demonstrate that the algorithm can improve the peers' cooperation, reduce system latency, and has a strong robustness in dynamic network environment.关键词
对等网络/流媒体直播系统/随机行走/拓扑优化/邻居选择Key words
Peer-to-Peer(P2P) network/ media streaming live system/ random walk/ topology optimization/ neighbor selection分类
信息技术与安全科学引用本文复制引用
冯侦探,倪宏..P2P流媒体直播系统覆盖网拓扑优化算法[J].计算机工程,2011,37(12):95-97,3.基金项目
国家"十一五"科技支撑计划基金资助重点项目"中国互动新媒体网络与新业务科技工程"(2008BAH28B04) （2008BAH28B04）
