Paper Abstract and Keywords |
Presentation |
2018-09-05 09:20
An Improved Bound on Dimension of Locally Repairable Codes Tomona Hamada, Hideki Yagi (Univ. of Electro-Commun.) IT2018-27 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Codes with locality $(r,delta)$ introduced in [3] are called locally repairable codes (LRCs). The codes can repair $delta-1$ erased symbols from at most other available $r$ symbols locally, using the local-error correction property of a punctured code with minimum distance at least $delta$.In this paper, we derived an upper bound on the dimension of LRCs with locality $(r,delta)$ based on classical upper bounds, which depends on the order $q$ of a finite field. Our bound is an extension of the bound for codes with locality $(r,2)$ given by Cadambe and Mazumdar. We also show numerically that our bound is tighter than existing bounds. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
locally repairable codes / local-error correction / error correcting codes / distributed storage systems / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 205, IT2018-27, pp. 1-6, Sept. 2018. |
Paper # |
IT2018-27 |
Date of Issue |
2018-08-29 (IT) |
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) |
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IT2018-27 |
Conference Information |
Committee |
IT |
Conference Date |
2018-09-05 - 2018-09-05 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Seionsou |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
error correcting codes, general |
Paper Information |
Registration To |
IT |
Conference Code |
2018-09-IT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
An Improved Bound on Dimension of Locally Repairable Codes |
Sub Title (in English) |
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Keyword(1) |
locally repairable codes |
Keyword(2) |
local-error correction |
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error correcting codes |
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distributed storage systems |
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1st Author's Name |
Tomona Hamada |
1st Author's Affiliation |
University of Electro-Communications (Univ. of Electro-Commun.) |
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Hideki Yagi |
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University of Electro-Communications (Univ. of Electro-Commun.) |
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Speaker |
Author-1 |
Date Time |
2018-09-05 09:20:00 |
Presentation Time |
25 minutes |
Registration for |
IT |
Paper # |
IT2018-27 |
Volume (vol) |
vol.118 |
Number (no) |
no.205 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2018-08-29 (IT) |
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