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| Presentation | 2009-09-11 14:15 Erasure Codes with Small Overhead Factor and their data transfer systems Hiroaki Kameyama, Shinichi Sazawa, Yuichi Sato (Fujitsu Labs. Ltd.)  CS2009-41 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we consider a family of XOR-based erasure codes with finite-sized randomly-generated parity check matrices, and report the results of thorough computational search for suitable erasure codes. We designed our codes so that the overhead factor becomes small. While typical LDPC codes use matrices that have several thousand rows, our codes use matrices that have only one thousand rows in consideration of practicable operation time and overhead. Because a method for discovering the most suitable matrix from a large number of matrices has not been found, we executed Monte Carlo simulation for a long time in order to discover a suitable matrix with the lowest overhead factor. We have discovered a family of erasure codes with an overhead factor of 1.002 on average, compared to 1.07 for typical LDPC codes when the number of rows is 1000. We have applied an original erasure correcting code to file transfer system and Cloud Computing environment. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Erasure Correcting / Data Transfer / Cloud / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 190, CS2009-41, pp. 47-52, Sept. 2009. | |
| Paper # | CS2009-41 | |
| Date of Issue | 2009-09-03 (CS) | |
| 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 | CS2009-41 |
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| Conference Information | |
| Committee | IN NS CS |
| Conference Date | 2009-09-10 - 2009-09-11 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku University (Miyagi) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Post IP Networking, Network Model, Internet Traffic, TCP/IP, Multimedia Communication, Network Management, Resource Management, Private Network, NW Security, etc |
| Paper Information | |
| Registration To | CS |
| Conference Code | 2009-09-IN-NS-CS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Erasure Codes with Small Overhead Factor and their data transfer systems |
| Sub Title (in English) | |
| Keyword(1) | Erasure Correcting |
| Keyword(2) | Data Transfer |
| Keyword(3) | Cloud |
| Keyword(4) | |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Hiroaki Kameyama |
| 1st Author's Affiliation | Fujitsu Laboratories LTD. (Fujitsu Labs. Ltd.) |
| 2nd Author's Name | Shinichi Sazawa |
| 2nd Author's Affiliation | Fujitsu Laboratories LTD. (Fujitsu Labs. Ltd.) |
| 3rd Author's Name | Yuichi Sato |
| 3rd Author's Affiliation | Fujitsu Laboratories LTD. (Fujitsu Labs. Ltd.) |
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| Speaker | Author-1 |
| Date Time | 2009-09-11 14:15:00 |
| Presentation Time | 25 minutes |
| Registration for | CS |
| Paper # | CS2009-41 |
| Volume (vol) | vol.109 |
| Number (no) | no.190 |
| Page | pp.47-52 |
| #Pages | 6 |
| Date of Issue | 2009-09-03 (CS) |
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