对等网应用层组播技术  

Peer-to-Peer Application Layer Multicast Technologies

作　　者：熊朝松[1] 胡小强[1] 

机构地区：[1]江西科技师范学院通信与电子学院,南昌330013

出　　处：《长春理工大学学报（自然科学版）》2007年第3期87-90,共4页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：江西省科技计划项目资助(05ZD022)

摘　　要：传统的分布式网络结构采用客户端/服务器模式,而对等网络中的端主机直接通讯的方式共享资源。对等架构在适应网络的动态性的同时,能维持较好的系统性能。应用层组播作为P2P的一个重要应用,已广泛应用在视频直播、视频点播、视频会议等领域。本文根据节点定位路由技术的不同,把应用层组播分为两类,然后从多方面对比了两类不同的组播协议。Distributed computing can be categorized as Client/Server architecture and Peer-to-Peer architecture. Different from C/S architecture, end hosts in Peer-to-Peer network communicate with each other directly, instead of utilizing centralized server, to share computer resources such as content, storage, CPU cycles. As a result it can be used in scenario such as live streaming, video on demand and videoconference that needs lots of bandwidth resource. In terms of their structure, we categorize ALM systems as Unstructured and Structured. Finally, we analyze these systems in terms of several key metrics.

关 键 词：对等网络 应用层组播 分布式对象定位与路由 分布式散列表 

分 类 号：TP393.11[自动化与计算机技术—计算机应用技术]