面向流媒体传输的Edge-to-Edge网络体系结构  

An Edge-to-Edge Network Architecture for Mass Streaming Media Transmission

作　　者：王慧[1] 孙志刚[1] 龚正虎[1] 何俊峰[1] 贺宁武[1] 

机构地区：[1]国防科学技术大学计算机学院,湖南长沙410073

出　　处：《计算机工程与科学》2011年第11期1-9,共9页Computer Engineering & Science

基　　金：国家863计划资助项目(2008AA01A325;2008AA01A323);国家973计划资助项目(2009CB320503)

摘　　要：随着网络技术的发展,互联网研究从单纯的数据交换转移到应用服务。传统的端到端网络体系结构存在许多缺陷,如缺乏资源可控性、无法保证QoS等,不适合传输海量流媒体数据。P2P等应用虽然缓解了服务器的压力,但损害了ISP的利益。本文提出面向流媒体应用的Edge-to-Edge网络体系结构,通过将核心网络和边缘网络隔离,在边缘网络节点中增加存储和计算能力来提高网络性能。分析了构建这种网络体系结构的关键技术。模拟结果表明,Edge-to-Edge网络体系结构能有效减少用户启动延时,极大减少核心网络带宽。With the progress of network technology, the Internet has shifted from barely file data exchang to application services. There are plenty of defects in the traditional End-to-End network architecture, such as deficiency of resource controllability, incapability of guarantee QoS, etc. So it is unsuitable to transfer the mass streaming media data. Although the P2P applications alleviate the load of servers, they damage the profit of ISP. In this paper, we present an Edge-to-Edge network service model for mass streaming media transmission, which isolates the edge network from the core network, adds storage and calculation functions at the edge to increase network performance. We analyse the key techniques in this new network architecture, and network simulation results show it can decrease the strat-up latency of users effectively and lessen the traffic flow of the core netwok remarkably.

关 键 词：端到端 网络体系结构 Edge—to—Edge Peer—to—Peer 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]