Low-density parity-check codes and their rateless relatives

N Bonello, S Chen, L Hanzo - IEEE Communications Surveys & …, 2010 - ieeexplore.ieee.org
This survey guides the reader through the extensive open literature that is covering the
family of low-density parity-check LDPC codes and their rateless relatives. In doing so, we …

Globalizing retail: conceptualizing the distribution-based transnational corporation (TNC)

N Wrigley, NM Coe, A Currah - Progress in human …, 2005 - journals.sagepub.com
In this article we argue that the retail transnational corporation (TNC) is an entity that merits
urgent theoretical and empirical investigation from economic geographers. Using recent …

Analysis of absorbing sets and fully absorbing sets of array-based LDPC codes

L Dolecek, Z Zhang, V Anantharam… - IEEE Transactions …, 2009 - ieeexplore.ieee.org
The class of low-density parity-check (LDPC) codes is attractive, since such codes can be
decoded using practical message-passing algorithms, and their performance is known to …

On the construction of structured LDPC codes free of small trapping 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 …

Design of LDPC decoders for improved low error rate performance: quantization and algorithm choices

Z Zhang, L Dolecek, B Nikolic… - IEEE Transactions …, 2009 - ieeexplore.ieee.org
Many classes of high-performance low-density parity-check (LDPC) codes are based on
parity check matrices composed of permutation submatrices. We describe the design of a …

Cyclic and quasi-cyclic LDPC codes on constrained parity-check matrices and their trapping sets

Q Huang, Q Diao, S Lin… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
This paper is concerned with construction and structural analysis of both cyclic and quasi-
cyclic codes, particularly low-density parity-check (LDPC) codes. It consists of three parts …

Error floor approximation for LDPC codes in the AWGN channel

BK Butler, PH Siegel - IEEE Transactions on Information …, 2014 - ieeexplore.ieee.org
This paper addresses the prediction of error floors of low-density parity-check codes
transmitted over the additive white Gaussian noise channel. Using a linear state-space …

Enumerators for protograph-based ensembles of LDPC and generalized LDPC codes

S Abu-Surra, D Divsalar… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
Protograph-based LDPC and generalized LDPC (G-LDPC) codes have the advantages of a
simple design procedure and highly structured encoders and decoders. The design of such …

Predicting error floors of structured LDPC codes: Deterministic bounds and estimates

L Dolecek, P Lee, Z Zhang… - IEEE Journal on …, 2009 - ieeexplore.ieee.org
The error-correcting performance of low-density parity check (LDPC) codes, when decoded
using practical iterative decoding algorithms, is known to be close to Shannon limits for …

On characterization of elementary trapping sets of variable-regular LDPC codes

M Karimi, AH Banihashemi - IEEE transactions on information …, 2014 - ieeexplore.ieee.org
In this paper, we study the graphical structure of elementary trapping sets (ETSs) of variable-
regular low-density parity-check (LDPC) codes. ETSs are known to be the main cause of …