一种基于P2P流媒体传输的QoS技术与实现方法  

Technique and Implement Method of QoS Based on P2P Streaming Media Transmission

作　　者：张二萌[1] 张新家[1] 张天义[1] 张国旺[1] 

机构地区：[1]西北工业大学软件与微电子学院,西安710065

出　　处：《科学技术与工程》2008年第8期2107-2111,共5页Science Technology and Engineering

摘　　要：实现了一种基于P2P流媒体直播系统的QoS(服务质量)保障技术。提出了对客户端流媒体数据的时效性与完整性的检测方法,以及QoS恢复策略。通过检测方法检测出数据源不稳定的源节点,并执行恢复策略,选择更好的源节点,从而使该客户端的QoS得到保障,进而对整个系统中的节点拓扑进行调整,使数据稳定的节点作为其他节点的源节点。An implement of a method of QoS control technique based on P2P live streaming media system is providesd. A detecting method about whether the streaming media data is timely and integrity and a resuming strategy of QoS are providesd. To find the source peer which could not provide stably steaming data by the detecting method and choose better peer which could provide stably streaming media data as new source peer, this ensures the QoS of client and adjusts the topology of the whole system, making the peer which could provide stably streaming media data to be the source peer.

关 键 词：P2P 流媒体 QOS IPTV 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]