一种基于改进HyperCast的多播协议  

A Multicast Protocol Based on Improved HyperCast

作　　者：刘天明[1] 张大方[1,2] 曾彬[2] 谢希[1] 李明伟[1] 

机构地区：[1]湖南大学软件学院,湖南长沙410082 [2]湖南大学计算机与通信学院,湖南长沙410082

出　　处：《计算机工程与科学》2010年第4期14-17,共4页Computer Engineering & Science

基　　金：国家自然科学基金重大研究计划资助项目(90718008);国家自然科学基金资助项目(60673155;60703097)

摘　　要：本文针对不完全超立方体多播网络中节点状态变化导致的连通度低结构维护难的问题,在原有HyperCast和CubeFullDist结构的基础上,采用为节点保存次邻节点信息以及在节点物理连接丢失时建立逻辑连接的方法,提出了一种改进的超立方体多播拓扑控制协议Hypercast-plus。理论分析与仿真实验表明,Hypercast-plus具有更好的容错性。Reliable and scalable multicast is an active research field of multicast based on hypereube. Hypercast-plus based on HyperCast and CubeFullDist is presented to solve the problem of rnulticast reliability. Because the nodes in multicast may leave or join at any moment, it is difficult to maintain. The mechanism is implemented by saving the information of the node＇s neighborhoods and adding logic links when the physical links are missing. According to the theoretial analysis and simulations, the Hypercast-plus protocol shows more efficient reliability.

关 键 词：超立方体 多播 容错性 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]