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| Presentation | 2007-12-14 15:00 A File Fetching Method to Reduce the Redundant Traffic on P2P Networks Akihiko Ishidu, Junichi Funasaka, Kenji Ishida (Hiroshima City Univ.)  IN2007-117 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | When dividing a file into many pieces and fetching different pieces from many peers on P2P systems, if the piece is requested from a slow peer whose upload throughput is low, the download time for the whole system may increase because of this slow download. End-game mode is proposed to solve this problem. This method requests the last piece from all the connected peers at the same time, while the duplicated requests generate redundant traffic. In this paper, we propose a method avoiding requesting a piece from slow peers without the duplicated requests, which can alleviate the increase in download time and generates no redundant traffic. The proposed method and the existing method with End-game mode are evaluated through simulation experiments using BitTorrent as an instance of the parallel retrieving method of a file from many peers. The download time and the redundant traffic are estimated focusing on the case when both high and low upload performance peers are included in the network, taking into account situations where no/some peers leave from the network after completion of the file retrieval. As a result, we confirm that our proposal can fetch files in similar length of time as the existing method with End-game mode, with trimming down redundant traffic generated by the existing method, whether or not some peers leave from the network after completion of the file retrieval. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | P2P system / peer selection / End-game Mode / BitTorrent / redundant traffic / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 378, IN2007-117, pp. 109-114, Dec. 2007. | |
| Paper # | IN2007-117 | |
| Date of Issue | 2007-12-06 (IN) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | IN2007-117 |
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| Conference Information | |
| Committee | IN |
| Conference Date | 2007-12-13 - 2007-12-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima City University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Internet Traffic, TCP/IP, Network Analysis/Evaluation, Netework Model, etc. |
| Paper Information | |
| Registration To | IN |
| Conference Code | 2007-12-IN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A File Fetching Method to Reduce the Redundant Traffic on P2P Networks |
| Sub Title (in English) | |
| Keyword(1) | P2P system |
| Keyword(2) | peer selection |
| Keyword(3) | End-game Mode |
| Keyword(4) | BitTorrent |
| Keyword(5) | redundant traffic |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Akihiko Ishidu |
| 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 | 2007-12-14 15:00:00 |
| Presentation Time | 25 minutes |
| Registration for | IN |
| Paper # | IN2007-117 |
| Volume (vol) | vol.107 |
| Number (no) | no.378 |
| Page | pp.109-114 |
| #Pages | 6 |
| Date of Issue | 2007-12-06 (IN) |
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