Research And Simulation Of P2P Video Sharing System Based On Social Network

Introduction of P2P in Network is resharpening the traditional way of watching.Peers can not only share resource of network, also upload resource for other peers toshare by their idle bandwith.P2P has greatly eased the bandwith pressure of server, andhas better scalability and fault to tolerance of network. therefore, more and more researchfor P2P appears. Studies show that P2P network has many social features, how tocombine social features with P2P appeals to many researchers. In this paper, the researchis as following:First, Based on existing research, the overlay network builds based on social andon demand similarity features of P2P network, by which query and locate resourcepeers. Simulation shows that the design in this paper is superior to the design by onlysocial feature in traffic.Second, Simulation shows that the design based on similarity is excellent.However, a lot of similar designs are faced with how to balance to the number of hopsand delay. So, this paper also designs the protential peer location solution. this solutioncan locate peers within the scope of six hops only with two queries. The peer, that is firstrequests for resource, and neighbors and protential peers of it build logical many treewhich of root is the peer. Accordingly, this build overlay network combined many tree.The solution combined to overlay and many tree solves the subtree fracture, because ofthe exit of some peer within tree. Simulation shows that the innovation solution issuperior to the design of pure social feature in traffic.Last, this innovation solution manages the protential and neighbor peers accordingto the category, so, cache management takes into account advantages of this classificationmanagement. This paper compares several different memory replacement policy.The last chapter summarizes existing work, find out improvement,.and lookingforward to the effort direction of the future.