电信科学 ›› 2010, Vol. 26 ›› Issue (1): 45-50.doi: 10.3969/j.issn.1000-0801.2010.01.009

• 研究与开发 • 上一篇    下一篇

一种可控对等网络流媒体直播系统

武娟,龙斌,庞涛,黄海   

  1. 中国电信股份有限公司广东研究院 广州 510630
  • 出版日期:2010-01-15 发布日期:2010-01-15
  • 基金资助:
    国家发改委CNGI示范工程2006年产业化及应用试验基金资助项目

A Controllable Peer-to-Peer Live Streaming System

Juan Wu,Hang Long,Hai Pang,Hai Huang   

  1. Guangdong Research Institute of China Telecom Co.,Ltd.,Guangzhou 510630,China
  • Online:2010-01-15 Published:2010-01-15

摘要:

在基于随机覆盖拓扑的对等网络直播系统中,全分布式资源定位和数据传输难以有效利用网络资源和提高直播应用性能。本文提出一种可控对等网络直播系统,其采用集中与分布相结合的方式和地域优先策略实现资源节点的有效定位,通过引入服务器补偿传输策略解决ADSL接入链路上载带宽不足问题和提高直播应用性能,数据传输采用改进的推拉结合方式。仿真分析表明,本文系统在播放连续度、启动播放时延和流量负载等方面均优于CoolStreaming。

关键词: 对等网络, 流媒体直播, 地域优先, 服务器补偿传输

Abstract:

In this paper, a controllable P2P live streaming system is presented. The proposals include a hybrid of centralized and distributed strategies based on locality awareness to effectively select supplying peers,a server-assisted transfer mechanism to relax the constraint on uploading capacity by ADSL access linhs of peers and to improve the performance of P2P live streaming, and a modified push-pull scheme for data transfer among peers.

Key words: peer-to-peer networh, live streaming, locality aware, server-assisted transfer

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