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Research on Some Key Technologies of P2P Streaming Network

Author: HanPeng
Tutor: ZhangZhiQiang
School: Harbin Engineering University
Course: Computer Software and Theory
Keywords: Peer-to-peer network Flow Tree structure Network structure
CLC: TN919.8
Type: Master's thesis
Year: 2009
Downloads: 168
Quote: 0
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Abstract


In recent years , with the continuous improvement of the network environment , the application of streaming media rapid development . Streaming multicast scheme based on the proxy server is now more popular streaming multicast scheme based on P2P networks , the very rapid pace of development . Many of the key technologies of streaming media has also been considerable development . Such as streaming media encoding technology , data caching and data distribution technology . Streaming data distribution strategy based on P2P networks is a hotspot of current research . According to the data distribution topology can be divided into two types of tree or multi- tree structure - based and network structure based . However , the tree structure is highly fragile , and it applies to a high stability and a small - scale environment . Although the network structure is relatively stable , but its huge control overhead , the load on the network . This article will design a new streaming data distribution strategy - combined with tree-like network streaming data distribution strategy ( TDS ) . The policy within the root node (Sub_Root) the tree structure and organization of network structure , and give full play to the characteristics of each of the two structures . TDS according to the network situation changes , dynamically adjust the data transmission structure. TDS full use of network resources , control overhead dispersed source node , effectively reducing the overhead of system control , to optimize the data transmission path , improves the quality of service . In addition, the paper proposes a new strategy in OPNET simulation tool simulation experiments . This article describes how strategy simulation modeling , how to build PEERCAST, DONET and TDS system process model in OPNET simulation tool that Finally, the experimental results verify the effectiveness of the system of TDS .

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