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Paper Abstract and Keywords
Presentation 2005-12-16 13:10
Proposal of dynamic grouping method for selecting peers on P2P networks
Hideyuki Yasuoka, Junichi Funasaka, Kenji Ishida (Hiroshima City Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) When sharing a file on P2P systems that adopt the Tit-For-Tat exchange strategy, the random peer selection has a problem that each peer cannot download the file enough efficiently. The peer selection adopting peer grouping according to transfer rate of each peer has been proposed to solve this problem. This traditional method is supposed to be able to alleviate the difference in performance among peers by connecting a peer to another in a group. However, when the performance of connected peers decreases suddenly, some problems are emerging, such as 1) it takes a long time for the traditional method to reconfigure groups; 2) switching immediately from a degraded peer to another has not been taken into account. Therefore, we propose a method that reconfigures groups once a peer notices the performance of connected peers decreases. The proposed method is evaluated through simulation experiments using BitTorrent as an instance of the Tit-For-Tat strategy. The download time of all peers and that of the peer with performance deterioration are estimated focusing on the effect of switching a degraded peer to another immediately. As a result, we confirm that our proposal can distribute files among all peers faster than the traditional method.
Keyword (in Japanese) (See Japanese page) 
(in English) P2P system / Peer Selection / Grouping / Tit-For-Tat strategy / BitTorrent / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 472, IN2005-125, pp. 91-96, Dec. 2005.
Paper # IN2005-125 
Date of Issue 2005-12-08 (IN) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee IN  
Conference Date 2005-12-15 - 2005-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Hiroshima City Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To IN 
Conference Code 2005-12-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of dynamic grouping method for selecting peers on P2P networks 
Sub Title (in English)  
Keyword(1) P2P system  
Keyword(2) Peer Selection  
Keyword(3) Grouping  
Keyword(4) Tit-For-Tat strategy  
Keyword(5) BitTorrent  
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1st Author's Name Hideyuki Yasuoka  
1st Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
2nd Author's Name Junichi Funasaka  
2nd Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
3rd Author's Name Kenji Ishida  
3rd Author's Affiliation Hiroshima City University (Hiroshima City Univ.)
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Speaker Author-1 
Date Time 2005-12-16 13:10:00 
Presentation Time 25 minutes 
Registration for IN 
Paper # IN2005-125 
Volume (vol) vol.105 
Number (no) no.472 
Page pp.91-96 
#Pages
Date of Issue 2005-12-08 (IN) 


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