Ryoji IKEGAYA


Average Bit Erasure Probability of Regular LDPC Code Ensembles under MAP Decoding over BEC
Takayuki ITSUI Kenta KASAI Ryoji IKEGAYA Tomoharu SHIBUYA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/09/01
Vol. E90-A  No. 9  pp. 1763-1771
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
regular LDPC code ensemblea-posteriori probability decodingbinary erasure channelEXIT functionshortened information functionsupport weight distribution
 Summary | Full Text:PDF

Performance of Standard Irregular LDPC Codes under Maximum Likelihood Decoding
Ryoji IKEGAYA Kenta KASAI Tomoharu SHIBUYA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/07/01
Vol. E90-A  No. 7  pp. 1432-1443
Type of Manuscript:  PAPER
Category: Coding Theory
Keyword: 
low-density parity-check (LDPC) codemaximum-likelihood decodingstandard irregular LDPC code ensembleblock error probability
 Summary | Full Text:PDF

Weight and Stopping Set Distributions of Two-Edge Type LDPC Code Ensembles
Ryoji IKEGAYA Kenta KASAI Yuji SHIMOYAMA Tomoharu SHIBUYA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/10/01
Vol. E88-A  No. 10  pp. 2745-2761
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
two-edge type LDPC codeweight distributionstopping set distributionbelief propagationerror performance
 Summary | Full Text:PDF

Asymptotic Weight and Stopping Set Distributions for Detailedly Represented Irregular LDPC Code Ensembles
Ryoji IKEGAYA Kenta KASAI Tomoharu SHIBUYA Kohichi SAKANIWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/10/01
Vol. E87-A  No. 10  pp. 2484-2492
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
weight distributionstopping set distributiondetailedly represented irregular LDPC code ensemble
 Summary | Full Text:PDF