On the construction of structured LDPC codes free of small trap** sets
DV Nguyen, SK Chilappagari… - IEEE Transactions …, 2012 - ieeexplore.ieee.org
We present a method to construct low-density parity-check (LDPC) codes with low error
floors on the binary symmetric channel. Codes are constructed so that their Tanner graphs …
floors on the binary symmetric channel. Codes are constructed so that their Tanner graphs …
The ADMM penalized decoder for LDPC codes
Linear programming (LP) decoding for low-density parity-check codes was introduced by
Feldman et al. and has been shown to have theoretical guarantees in several regimes …
Feldman et al. and has been shown to have theoretical guarantees in several regimes …
Predicting failures in power grids: The case of static overloads
Here we develop an approach to predict power grid weak points, and specifically to
efficiently identify the most probable failure modes in static load distribution for a given …
efficiently identify the most probable failure modes in static load distribution for a given …
Graph-cover decoding and finite-length analysis of message-passing iterative decoding of LDPC codes
PO Vontobel, R Koetter - arxiv preprint cs/0512078, 2005 - arxiv.org
The goal of the present paper is the derivation of a framework for the finite-length analysis of
message-passing iterative decoding of low-density parity-check codes. To this end we …
message-passing iterative decoding of low-density parity-check codes. To this end we …
An information theoretical framework for analysis and design of nanoscale fault-tolerant memories based on low-density parity-check codes
B Vasic, SK Chilappagari - … on Circuits and Systems I: Regular …, 2007 - ieeexplore.ieee.org
In this paper, we develop a theoretical framework for the analysis and design of fault-tolerant
memory architectures. Our approach is a modification of the method developed by Taylor …
memory architectures. Our approach is a modification of the method developed by Taylor …
ADMM check node penalized decoders for LDPC codes
H Wei, AH Banihashemi - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Alternating direction method of multipliers (ADMM) is an efficient implementation of linear
programming (LP) decoding for low-density parity-check (LDPC) codes. By adding penalty …
programming (LP) decoding for low-density parity-check (LDPC) codes. By adding penalty …
Finding all small error-prone substructures in LDPC codes
It is proven in this work that it is NP-complete to exhaustively enumerate small error-prone
substructures in arbitrary, finite-length low-density parity-check (LDPC) codes. Two error …
substructures in arbitrary, finite-length low-density parity-check (LDPC) codes. Two error …
Instanton-based techniques for analysis and reduction of error floors of LDPC codes
SK Chilappagari, M Chertkov… - IEEE Journal on …, 2009 - ieeexplore.ieee.org
We describe a family of instanton-based optimization methods developed recently for the
analysis of the error floors of low-density parity-check (LDPC) codes. Instantons are the most …
analysis of the error floors of low-density parity-check (LDPC) codes. Instantons are the most …
Pseudo-codeword landscape
We discuss the performance of low-density-parity-check (LDPC) codes decoded by means
of linear programming (LP) at moderate and large signal-to-noise-ratios (SNR). Utilizing a …
of linear programming (LP) at moderate and large signal-to-noise-ratios (SNR). Utilizing a …
An efficient pseudocodeword search algorithm for linear programming decoding of LDPC codes
In linear programming (LP) decoding of a low-density parity-check (LDPC) code one
minimizes a linear functional, with coefficients related to log-likelihood ratios, over a …
minimizes a linear functional, with coefficients related to log-likelihood ratios, over a …