Shibuya Tomoharu

J-GLOBAL         Last updated: May 22, 2019 at 02:40
 
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Name
Shibuya Tomoharu
Affiliation
Sophia University
Section
Faculty of Science and Technology, Department of Information and Communication Sciences
Job title
Professor
Research funding number
20262280

Profile

1991- Applications and fundamental aspects on the error correcting codes, especially on the parameters of algebraic codes
2001- On the performance of LDPC codes and their decoding algorithm
2008- On the convergence behavior of the iterative decoding
2010- Efficient encoding algorithm for linear codes and related topics
Coding for Non-volatile memory
2011- Construction of quantum error correcting codes

On the convergence bihavior of the iterative decoding

Research Areas

 

Published Papers

 
Tomoharu Shibuya
Takeru Sudo   E100-A(12) 2558-2571   Dec 2017   [Refereed]
In this paper, we propose a group theoretic representation
suitable for the rank-modulation (RM) scheme over the multi-cell ranking presented by En Gad et al. By introducing an action of the group of all permutation matrices on the set of all perm...
Construction and Analysis of Rank-Modulation Rewriting Codes by the Group of Permutation Matrices
Tomoharu SHibuya, Takeru Sudo
2016 International Symposium on Information Theory and Its Applications      Oct 2016
Keisuke KODAIRA, Mihoko WADA, Tomoharu SHIBUYA
IEIEICE Transactions on Fundamentals of Electronics, Communications and Computer SciencesICE Trans. Fundamentals   E97-A(11) 2247-2253   Nov 2014   [Refereed]
The amplitude damping (AD) quantum channel is one of the models describing evolution of quantum states. The construction of quantum error correcting codes for the AD channel based on classical codes has been presented, and Shor et al. proposed a ...
Entanglement-Assisted Quantum Error-Correcting Codes Based on the Circulant Permutation Matrix
Mihoko Wada, Keisuke Kodaira, Tomoharu Shibuya
Proceedings of 2014 International Symposium on Information Theory and its Applications ISITA 2014   158-162   Oct 2014   [Refereed]
On the Condition on Classical Codes to Construct Quantum Error Correcting Codes for Amplitude Damping Channel
K. Kodaira and T. Shibuya
Proceedings of 2014 International Symposium on Information Theory and its Applications ISITA 2014   167-171   Oct 2014   [Refereed]

Misc

 
Generalization of Lu's Linear Time Encoding Algorithm for LDPC Codes
Kazuki Kobayashi, Tomoharu Shibuya
Proceedings of ISITA 2012   16-20   Oct 2012
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Tomoharu Shibuya
Proceedings of ISIT2011   533-537   Jul 2011
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S. Miyamoto, K. Kasai, T. Shibuya, K. Sakaniwa
Proceedings of ISIT2007   756-760   Jul 2007
Upper Bounds of Block Error Probability of Standard Irregular LDPC Code Ensemble under Maximum Likelihood Decoding
R. Ikegaya, K. Kasai, T. Shibuya, K. Sakaniwa
Proc. CD-ROM of the 4th International Symposium on Turbo Codes & Related Topics      Sep 2006
Average Coset Weight Distribution of Multi-Edge type LDPC Code Ensembles
K. Kasai,Y. Shimoyama,T. Shibuya,K. Sakaniwa
Proc. CD-ROM of the 4th International Symposium on Turbo Codes & Related Topics      Sep 2006

Books etc

 
Introduction to algebraic systems and error correcting codes
Shibuya Tomoharu (Part:Joint Work)
Corona Publishing   Apr 2010   ISBN:978-4339024463

Conference Activities & Talks

 
Tomoharu Shibuya
Japan-Singapore Workshop on Coding and Information Theory   4 Mar 2018   School of Physical & Mathematical Sciences, Nanyang Technological University
In this talk, a group theoretic representation suitable for the
rank-modulation (RM) scheme over the multi-cell ranking developed by
En Gad et al. is presented. By introducing an action of the group of
all permutation matrices on the set of all pe...
Analysis of Rank-Modulation Rewriting Codes by a Group Action
Tomoharu Shibuya, Takeru Sudo
Conference of Technical Committee on Information Theory   20 May 2016   IEICE
On the dependence of error performance of spatially coupled LDPC codes on their design parameters
SHIBUYA TOMOHARU, Hiroyuki Ihara,Tomoharu Shibuya
Conference of Technical Committee on Information Theory   20 Jul 2012   IEICE
Encoding of Linear Codes Based on the Rearrangement of Block-Triangularized Parity-Check Matrices
SHIBUYA TOMOHARU
Conference of Technical Committee on Information Theory   22 Sep 2010   IEICE

Association Memberships