基于同步会话管理机制的P2PVoD系统研究与设计  

RESEARCH AND DESIGN OF P2PVoD SYSTEM BASED ON SYNCHRONOUS SESSION MANAGEMENT MECHANISM

作　　者：戚敬哲[1] 朱艳琴[2] 纪其进[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215006 [2]江苏省计算机信息处理新技术重点实验室,江苏苏州215006

出　　处：《计算机应用与软件》2011年第7期108-111,共4页Computer Applications and Software

基　　金：江苏省高校自然科学基础研究项目(08KJB520011);苏州市应用基础研究计划项目(SYJG09024)

摘　　要：在视频点播系统中,由于用户节点的动态性和VCR操作的复杂性,使得资源的定位一直是P2P流媒体点播系统的难题。对典型的视频点播系统的关键技术进行了研究,在此基础上,设计了一种基于同步会话管理定位机制的P2P视频点播系统,加速了节点的资源定位,更有效地支持用户的VCR操作。仿真结果表明,与P2VoD系统相比,该系统减小了节点加入系统的延迟,降低了系统的通信负担。Resource location in video-on-demand system of P2P streaming media is always a challenging problem because of the peers＇ dynamic nature and the complexity of VCR operations.In this thesis the key technologies of typical video-on-demand systems are studied,and on this basis,a P2P video-on-demand system based on synchronous session management location mechanism is designed,which expedites the resource location of the peers and supports more effectively the users＇ VCR operations.Simulation results show that the peers＇ joining delay is decreased and the communication overhead of the system is fallen compared with the P2VoD system.

关 键 词：对等网络 视频点播 资源定位 同步会话 

分 类 号：TN943[电子电信—信号与信息处理]