基于CDN和P4P融合架构的IPTV系统  

IPTV System Based on CDN-P4P Hybrid Architecture

作　　者：廖剑锋[1] 

机构地区：[1]华中科技大学文华学院,湖北武汉430074

出　　处：《电视技术》2011年第22期42-45,52,共5页Video Engineering

摘　　要：CDN+P2P技术是目前IPTV系统的研究热点,但P2P技术同时又存在一些缺陷。通过分析P2P技术的本质,提出了一种新的CDN和P4P结合架构的IPTV系统,能够充分发挥P2P技术在媒体分发方面的去中心化优势,规避了在信令层面的去中心化弱势。P2P ＋ CDN is the hot topic in IPTV system. However, P2P may bring new problems because of its defects. In this article, a CDN-P4P hybrid architecture in IPTV system is brought out. And thus, it can give full play to P2P technology in the media of the distribution of decentralized advantage, and can avoid the signaling level in the decentralized vulnerable.

关 键 词：IPTV 内容分发网 P2P P4P 

分 类 号：TN949.291[电子电信—信号与信息处理] TN915[电子电信—信息与通信工程]