2011 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT) 533-537 2011年
In this paper, we propose a new encoding algorithm for linear codes whose computational complexity is O(w( H)) where w(H) denotes the number of non-zero elements in a parity check matrix H of a code. The proposed algorithm is based on the block-tr...
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E93A(11) 2083-2088 2010年11月 [査読有り]
Recently Mooij et al proposed new sufficient conditions for convergence of the sum product algorithm and it was also shown that if the factor graph is a tree Mooijs sufficient condition for convergence is always activated. In this letter we show t...
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES E91A(10) 2737-2744 2008年10月 [査読有り]
Luby et al. derived evolution of degree distributions in residual graphs for irregular LDPC code ensembles. Evolution of degree distributions in residual graphs is important characteristic which is used for finite-length analysis of the expected b...
Spatially coupled (SC) low-density parity-check (LDPC) codes are denned by bipartite graphs that are obtained by assembling prototype graphs. The combination and connection of prototype graphs are designated by specifying some parameters, and Kude...
2018 The International Symposium on Information Theory and Its Applications 2018年10月28日 Engineering Sciences Society, IEICE
conventional secret sharing, password protected secret sharing (PPSS) was invented. Recently, Nakahara et al. improved Ogata's multiple-use PPSS (mPPSS), which protects multiple data by one password, by employing secure computation known as CSEC70...
Japan-Singapore Workshop on Coding and Information Theory 2018年3月4日 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...