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P2P Choking Algorithm Research That is Based on Self-adaptive Multicast Mechanism

Author: DingXun
Tutor: WangDong；LiYongHang
School: Hunan University
Course: Software technology
Keywords: Peer-to-Peer Networks Routing Algorithm Multicast Adaptive Choking Algorithm
CLC: TP393.02
Type: Master's thesis
Year: 2008
Downloads: 34
Quote: 0
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Abstract


P2P(Peer-to-Peer) technique is extensively highly valued and developed rapidly in recent years industry, it comes as a combination of modern network technique and distributed computer technology.P2P technique was applied to internet, which marked the prelude to modern reciprocal network. short for the most important network application, P2P carries more than 60% transmission rate, which is a great significance to improving internet service quality。Along with the increase of internet user’s quantity and new business, P2P network operators need to try their best to offer users the best services, to adapt the keen competition environment. in this circumstance, P2P network performance becomes the focus of attention gradually.Choking mechanism is used as a node selection algorithm in P2P networks to determine the mutual client nodes. However traditional blocking algorithms may induce several shortcomings such as connection between nodes lasting too long,slow accessing to first block and low link utilization. A self-adaptive multicast mechanism is presented by the use of dynamic packets in routing, considered the available bandwidth between nodes。Which forms an idea of the combination of traditional choking mechanism and multicast mechanism to the new algorithm, as the nodes downloading process is a multicast routing procedure, so we use the self-adaptive multicast mechanism to adjust the multicast grouping relations between nodes, outperforming traditional blocking mechanism in accessing the first block and the bandwidth utilization in the system.Emulation experiments certify that P2P blocking algorithm which is based on the self-adaptive multicast mechanism greatly solves the last block etc problems, better than the classic algorithm in performance.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Computer network architecture and design
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