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Design and Implementation of Net Video-on-demand Multimedia Streaming Platform Based on P2P

Author: LiJiongXi
Tutor: HeHui；LuoYongJie
School: Harbin Institute of Technology
Course: Software Engineering
Keywords: P2P Video on Demand Cache Management Data scheduling
CLC: TN919.8
Type: Master's thesis
Year: 2010
Downloads: 70
Quote: 0
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Abstract


Traditional service model based on C / S , for video streaming of this large amount of data , applications , limited service due to server capacity and network bandwidth , limiting the capacity and scalability of the system . P2P technology can make full use of network bandwidth resources and idle client service capabilities , the interaction between the user data , greatly reducing the pressure on the server . In recent years, the rapid development of P2P-based streaming on-demand business , and the combination of P2P technology and streaming media technology , which greatly improves system reliability and scalability . Video on demand is an asynchronous system , each user 's start-up time is not the same for the user to play the same program , and the user performs pause, fast forward, rewind and drag VCR operation , at the same time bring some problems, such as : data how distributed scheduling , and how to ensure its smooth play , how to design the buffer area of resource management , the resolution of these issues is of great significance for the network based on P2P streaming media on demand . This paper first reviews the existing streaming media technology , the P2P network technology and caching techniques , analysis of their respective advantages and inadequacies of the existing on-demand streaming system cache technology . Through analysis of peer-to-peer networks and content delivery networks both technology and applications , given their respective advantages and disadvantages , and the detailed analysis and comparison of the two technologies , while demand P2P and CDN network convergence analysis of the relevant instructions . Then introduced the whole system of video-on-demand , on-demand client design gives a layered , elaborate focus on the design and realization of the system module . Selected on the basis of the analysis of the existing network service model , asynchronous event-driven framework , all the events through the framework of a unified scheduling . A slice management and scheduling mechanisms to take full advantage of the service capacity of the nodes . In addition, the system uses a cache management strategy for P2P streaming media on-demand system combined dynamic and static slice size for the data to improve cache utilization and cache block is set .

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