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| Presentation | 2008-03-07 12:05 On Transport Protocols for Effective Divisional Downloading on High Loss Rate Networks Junichi Funasaka (Hiroshima City Univ.)  IN2007-201 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | ``Parallel Downloading'', which divides a file into many pieces and assigns each piece to one of the target servers, has been proposed and researched to achieve high speed file retrieval from many servers in parallel. The conventional method which adopts TCP as a transport protocol has a problem that its performance deteriorates in the network where packet losses frequently occur at the datalink layer. To address this issue, a parallel downloading method which uses UDP as a transport protocol has been proposed. However, it is not so easy to differentiate the effect of the number of servers and that of transport protocol itself. In this paper, in order to eliminate the effect of multiple servers, a divisional download method which is used between a client and a server is discussed. Some Internet standard transport protocols, such as UDP, DCCP, and SCTP, are compared with TCP through simulation experiments in high loss rate networks, concluding that the divisional downloadi ng method which adopts UDP as a transport protocol can retrieve the specified file in shortest time in the environment supposed in this paper. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Parallel downloading / HTTP / UDP / DCCP / SCTP / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 525, IN2007-201, pp. 253-258, March 2008. | |
| Paper # | IN2007-201 | |
| Date of Issue | 2008-02-28 (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 | IN2007-201 |
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| Conference Information | |
| Committee | NS IN |
| Conference Date | 2008-03-06 - 2008-03-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Bankoku Shinryokan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General issues |
| Paper Information | |
| Registration To | IN |
| Conference Code | 2008-03-NS-IN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On Transport Protocols for Effective Divisional Downloading on High Loss Rate Networks |
| Sub Title (in English) | |
| Keyword(1) | Parallel downloading |
| Keyword(2) | HTTP |
| Keyword(3) | UDP |
| Keyword(4) | DCCP |
| Keyword(5) | SCTP |
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| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Junichi Funasaka |
| 1st Author's Affiliation | Hiroshima City University (Hiroshima City Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-03-07 12:05:00 |
| Presentation Time | 20 minutes |
| Registration for | IN |
| Paper # | IN2007-201 |
| Volume (vol) | vol.107 |
| Number (no) | no.525 |
| Page | pp.253-258 |
| #Pages | 6 |
| Date of Issue | 2008-02-28 (IN) |
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