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Always-optimally-coordinated candidate selection algorithm for peer-to-peer files sharing system in mobile self-organized networks

Li Xi Ji Hong Zheng Ruiming Li Ting

高技术通讯（英文版）2009，Vol.15Issue(3)：281-287,7.
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高技术通讯（英文版）2009，Vol.15Issue(3)：281-287,7.DOI:10.3772/j.issn.1006-6748.2009.03.011

Always-optimally-coordinated candidate selection algorithm for peer-to-peer files sharing system in mobile self-organized networks

Always-optimally-coordinated candidate selection algorithm for peer-to-peer files sharing system in mobile self-organized networks

Li Xi 1Ji Hong 1Zheng Ruiming 2Li Ting1

作者信息

  • 1. Key Lab of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 10087, P.R.China
  • 2. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, P.R.China
  • 折叠

摘要

Abstract

In order to improve the performance of peer-to-peer files sharing system under mobile distributed environments, a novel always-optimally-coordinated (AOC) criterion and corresponding candidate selection algorithm are proposed in this paper. Compared with the traditional min-hops criterion, the new approach introduces a fuzzy knowledge combination theory to investigate several important factors that influence files transfer success rate and efficiency. Whereas the min-hops based protocols only ask the nearest candidate peer for desired files, the selection algorithm based on AOC comprehensively considers users' preference and network requirements with flexible balancing rules. Furthermore, its advantage also expresses in the independence of specified resource discovering protocols, allowing for scalability. The simulation results show that when using the AOC based peer selection algorithm, system performance is much better than the min-hops scheme, with files successful transfer rate improved more than 50% and transfer time reduced at least 20%.

关键词

peer-to-peer files sharing system/ mobile self-organized network/ candidate selection/ fuzzy knowledge combination/ always-optimally coordinated (AOC)

Key words

peer-to-peer files sharing system/ mobile self-organized network/ candidate selection/ fuzzy knowledge combination/ always-optimally coordinated (AOC)

分类

信息技术与安全科学

引用本文复制引用

Li Xi,Ji Hong,Zheng Ruiming,Li Ting..Always-optimally-coordinated candidate selection algorithm for peer-to-peer files sharing system in mobile self-organized networks[J].高技术通讯（英文版）,2009,15(3):281-287,7.

基金项目

Supported by the National Nature Science Foundation of China (No. 60672124) and the National High Technology Research and Development Programme the of China (No. 2007AA01Z221). （No. 60672124）

高技术通讯（英文版）

OAEI

1006-6748

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