A novel team-centric peer selection scheme for distributed wireless P2P networks

Authors:
Xi Li;Hong Ji;Ruiming Zheng;Yi Li;F. Richard Yu
Affiliations:
Key Lab of Universal Wireless Communications, Beijing University of Posts and Telecommunications, Beijing, P. R. China;Key Lab of Universal Wireless Communications, Beijing University of Posts and Telecommunications, Beijing, P. R. China;Key Lab of Universal Wireless Communications, Beijing University of Posts and Telecommunications, Beijing, P. R. China;Key Lab of Universal Wireless Communications, Beijing University of Posts and Telecommunications, Beijing, P. R. China;Department of Systems and Computer Engineering, Carleton University, Ottawa, ON, Canada
Venue:
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Year:
2009

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Abstract

Selecting an appropriate peer from the discovered file holders is one of the key steps in wireless peer-to-peer (P2P) file sharing systems. Most of existing peer selection schemes are based on the min-hops selection criterion, which uses the number of hops as the only factor in peer selection. However, due to the distinct characteristics in wireless mobile networks, a number of important factors should be considered in wireless P2P networks, such as time-varying channels, node energy, security and user movement. In this paper, we propose a novel peer selection scheme that simultaneously considers multiple selection criteria in wireless P2P networks. The proposed scheme is based on recent advances in fuzzy cognitive maps theory. The main influential factors and their complex relationships for peer selection in wireless P2P networks are investigated. The candidate peer and corresponding intermediate peers along the path are treated as a team for evaluation. Simulation results show the effectiveness of the proposed scheme.