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TIT
2008
122views more  TIT 2008»
13 years 4 months ago
An Efficient Pseudocodeword Search Algorithm for Linear Programming Decoding of LDPC Codes
Abstract--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 ...
Michael Chertkov, Mikhail G. Stepanov
SIAMDM
2008
105views more  SIAMDM 2008»
13 years 4 months ago
Average Spectra and Minimum Distances of Low-Density Parity-Check Codes over Abelian Groups
Ensembles of regular low-density parity-check codes over any finite Abelian group G are studied. The nonzero entries of the parity matrix are randomly chosen, independently and uni...
Giacomo Como, Fabio Fagnani
VTC
2006
IEEE
103views Communications» more  VTC 2006»
13 years 10 months ago
Generalized Low-Density Parity-Check Coding Aided Multilevel Codes
– Classic Low-Density Parity-Check (LDPC) codes have recently been used as component codes in Multilevel Coding (MLC) due to their impressive BER performance as well as owing to ...
Ronald Y. S. Tee, Fang-Chun Kuo, Lajos Hanzo
ISCAS
2006
IEEE
100views Hardware» more  ISCAS 2006»
13 years 10 months ago
Decoders for low-density parity-check convolutional codes with large memory
— Low-density parity-check convolutional codes offer the same good error-correcting performance as low-density parity-check block codes while having the ability to encode and dec...
Stephen Bates, L. Gunthorpe, Ali Emre Pusane, Zhen...
ICC
2007
IEEE
117views Communications» more  ICC 2007»
13 years 10 months ago
A Modified Bit-Flipping Decoding Algorithm for Low-Density Parity-Check Codes
― In this paper, a modified bit-flipping decoding algorithm for low-density parity-check (LDPC) codes is proposed. Both improvement in performance and reduction in decoding delay...
Telex Magloire Nkouatchah Ngatched, Fambirai Takaw...