一种基于超立方体的应用层组播协议  

Hypercube Based Application-Layer Multicast Protocol

作　　者：张祖平[1] 徐超[1] 陈建二[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《小型微型计算机系统》2006年第11期1991-1996,共6页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(60433020)资助;长江学者奖励计划项目资助.

摘　　要：提出了一种基于超立方体结构的应用层组播协议—ComCast.ComCast协议通过反馈机制实现了可靠组播,并通过建立逻辑连接的方法解决了容错性问题;采用NS2对ComCast协议进行了仿真,并与另外一种基于超立方体的协议HyperCast进行了比较,比较指标包括路径伸展率、链路压力、数据传送率.结果表明,虽然ComCast协议的链路压力较高,但是其路径伸展率较低,同时在节点正常和出错两种情况下都具有较好的数据传送率.This paper presented the design, analysis and performance evaluation of ComCast, a novel application-layer multicast protocol. This paper also conducts simulations of ComCast and another protocol HyperCast. Simulation results show that although ComCastr s link stress is bigger than HyperCast, it provides smaller path stretch, higher data delivery ratio. Furthermore, ComCast achieves better fault tolerance ability by using logical links in the presence of failures; it can also provide reliable multicast by a feedback mechanism.

关 键 词：应用层组播 覆盖网 超立方体 可靠组播 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]