摘要： 传统内容分发网络(CDN)互联协议电视(IPTV)系统的部署和维护成本较高。为此，提出采用CDN和对等(P2P)混合架构的IPTV系统方案。在原有系统基础上，加入P2P技术，对上海电信IPTV系统的实验数据加以分析，设计节目热门度模型。实验结果表明，该方案能降低系统开销，提高系统的可扩展性，使用该热门度模型后，降低约40%的系统负载。

关键词: 互联协议电视, 对等网络, 混合架构, 节目热门度, 系统模拟

Abstract: Aiming at the problem that traditional Content Delivery Network(CDN) architecture Internet Protocol Television(IPTV) system is expensive to deploy and maintain. Hybrid architecture IPTV system project is proposed. The original IPTV system of CDN architecture is merged with Peer-to-Peer(P2P). This paper analyzes the real data of shanghai telecom IPTV system, designs an approximate model of program popular degree. Experimental results show that, this scheme can cut costs and enhance the scalability, the model of popular degree get about 40% system load reducement as a result.

Key words: Internet Protocol Television(IPTV), Peer-to-Peer(P2P) network, hybrid architecture, program popular degree , system simulation

中图分类号: 

• N945