Presentation 2017-03-09
On the Design of Locally Repairable Codes Based on Code Modification
Hiroto Tamiya, Masanori Hirotomo, Masakatu Morii,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Locally repairable codes (LRCs) are a class of codes designed for the local correction of erasures. Locality and Availability are important metrics of the locally repairable capability. Several upper bounds on minimum distances and dimensions of LRCs have been reported and the optimal code construction to achieve the upper bound is studied. Furthermore, locally repairable capability is investigated for conventional codes such as Hamming code and BCH code. In this paper, we discuss the construction of LRC by modifying the check matrix of SEC-DED code and LRCs by modifying the majority logic decodable code with specific conditions. Furthermore, we discuss the locally repairable capability of EG-LDPC code and PG-LDPC code.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Locally repairable codes / code modification / majority-logic decodable codes / finite geometry codes
Paper # IT2016-106,ISEC2016-96,WBS2016-82
Date of Issue 2017-03-02 (IT, ISEC, WBS)

Conference Information
Committee ISEC / WBS / IT
Conference Date 2017/3/9(2days)
Place (in Japanese) (See Japanese page)
Place (in English) TOKAI University
Topics (in Japanese) (See Japanese page)
Topics (in English) joint meeting of IT, ISEC, and WBS
Chair Masahiro Mambo(Kanazawa Univ.) / Fumiaki Maehara(Waseda Univ.) / Masayoshi Ohashi(Fukuoka Univ.)
Vice Chair Kazuto Ogawa(NHK) / Atsushi Fujioka(Kanagawa Univ.) / Masanori Hamamura(Kochi Univ. of Tech.) / Fumie Ono(NICT) / Jun Muramatsu(NTT)
Secretary Kazuto Ogawa(Toshiba) / Atsushi Fujioka(Tohoku Univ.) / Masanori Hamamura(Tokyo City Univ.) / Fumie Ono(Mitsubishi Electric) / Jun Muramatsu(Wakayama Univ.)
Assistant Toshihiro Ohigashi(Tokai Univ.) / Yuuji Suga(IIJ) / Atsuo Inomata(Tokyo Denki Univ.) / Yusuke Kozawa(Tokyo Univ. of Science) / Akira Nakamura(Tokyo Univ. of Science) / Ryohei Nakamura(National Defense Academy) / Mitsugu Iwamoto(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Information Security / Technical Committee on Wideband System / Technical Committee on Information Theory
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) On the Design of Locally Repairable Codes Based on Code Modification
Sub Title (in English)
Keyword(1) Locally repairable codes
Keyword(2) code modification
Keyword(3) majority-logic decodable codes
Keyword(4) finite geometry codes
1st Author's Name Hiroto Tamiya
1st Author's Affiliation Kobe University(Kobe Univ.)
2nd Author's Name Masanori Hirotomo
2nd Author's Affiliation Saga University(Saga Univ.)
3rd Author's Name Masakatu Morii
3rd Author's Affiliation Kobe University(Kobe Univ.)
Date 2017-03-09
Paper # IT2016-106,ISEC2016-96,WBS2016-82
Volume (vol) vol.116
Number (no) IT-504,ISEC-505,WBS-506
Page pp.pp.49-53(IT), pp.49-53(ISEC), pp.49-53(WBS),
#Pages 5
Date of Issue 2017-03-02 (IT, ISEC, WBS)