DocumentCode
2245076
Title
Discovering Free-Riders Before Trading: A Simple Approach
Author
Xia, Raymond Lei ; Muppala, Jogesh K.
Author_Institution
UFIDA (Hong Kong) Co. Ltd. Central, Hong Kong, China
fYear
2010
fDate
8-10 Dec. 2010
Firstpage
806
Lastpage
811
Abstract
Free-riding is one of the most serious problems encountered in Peer-to-peer (P2P) systems like Bit Torrent. Incentive mechanisms, including those based on reputation have been proposed to deal with this problem, but are still not effective in preventing free-riders from completing a download. This is because they discover the free-riders´ behavior during or after the process of trading, giving free-riders the opportunity to download from others. In this paper, we propose PreDiscover, a novel approach to prevent free-riding behavior in Bit Torrent. In PreDiscover, regular peers and free-riders can be recognized before trading. So free-riders have little opportunity to download blocks from others. Our simulation results indicate that this new mechanism is very effective in discouraging free-riders and foster fairness.
Keywords
peer-to-peer computing; BitTorrent; PreDiscover; free-riding; incentive mechanism; peer-to-peer system; Free-riding; P2P; Reputation System;
fLanguage
English
Publisher
ieee
Conference_Titel
Parallel and Distributed Systems (ICPADS), 2010 IEEE 16th International Conference on
Conference_Location
Shanghai
ISSN
1521-9097
Print_ISBN
978-1-4244-9727-0
Electronic_ISBN
1521-9097
Type
conf
DOI
10.1109/ICPADS.2010.86
Filename
5695687
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