Exploring proximity based peer clustering in BitTorrent-like Peer-to-Peer file sharing systems  

作　　者：俞嘉地 Li Minglu 

机构地区：[1]Department of Computer Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, P.R. China]

出　　处：《High Technology Letters》2008年第2期134-140,共7页高技术通讯（英文版）

基　　金：the National High Technology Research and Development Programme of China(No2004AA104280,2006AA01Z172)

摘　　要：A hierarchical clustered BitTorrent （CBT） system is proposed to improve the file sharing perior-mance of the BitTorrent system, in which peers are grouped into clusters in a large-scale BitTorrent-hke underlying overlay network in such a way that clusters are evenly distributed and that the peers within the cluster are relatively close to each other. A fluid model is developed to compare the performance of the proposed CBT system with the BitTorrent system, and the result shows that the CBT system can effectively improve the performance of the system. Simulation results also demonstrate that the CBT system improves the system scalabihty and efficiency while retaining the robustness and incentives of the original BitTorrent paradigm.A hierarchical clustered BitTorrent(CBT)system is proposed to improve the file sharing perfor-mance of the BitTorrent system,in which peers are grouped into clusters in a large-scale BitTorrent-likeunderlying overlay network in such a way that clusters are evenly distributed and that the peers within thecluster are relatively close to each other.A fluid model is developed to compare the performance of theproposed CBT system with the BitTorrent system,and the result shows that the CBT system can effectivelyimprove the performance of the system.Simulation results also demonstrate that the CBT system improvesthe system scalability and efficiency while retaining the robustness and incentives of the original BitTorrentparadigm.

关 键 词：BITTORRENT clusted BitTorrent（CBT） hierarchical architecture modeling SUPER-PEER 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]