Sciweavers

397 search results - page 24 / 80
» Overview of LDPC Codes
Sort
View
DCC
2007
IEEE
14 years 7 months ago
Small weight codewords in LDPC codes defined by (dual) classical generalized quadrangles
We find lower bounds on the minimum distance and characterize codewords of small weight in low-density parity check codes defined by (dual) classical generalized quadrangles. We a...
Jon-Lark Kim, Keith E. Mellinger, Leo Storme
TIT
2008
122views more  TIT 2008»
13 years 7 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
ICC
2007
IEEE
192views Communications» more  ICC 2007»
14 years 1 months ago
Informed Dynamic Scheduling for Belief-Propagation Decoding of LDPC Codes
— Low-Density Parity-Check (LDPC) codes are usually decoded by running an iterative belief-propagation, or message-passing, algorithm over the factor graph of the code. The tradi...
Andres I. Vila Casado, Miguel Griot, Richard D. We...
WCNC
2008
IEEE
14 years 1 months ago
Cooperative Communications Using Scalable, Medium Block-length LDPC Codes
Abstract— Cooperative communications has received increasing attention in recent years because of the ubiquity of wireless devices. Each year more mobile computing devices enter ...
Marjan Karkooti, Joseph R. Cavallaro
ISCAS
2011
IEEE
288views Hardware» more  ISCAS 2011»
12 years 11 months ago
Multi-layer parallel decoding algorithm and vlsi architecture for quasi-cyclic LDPC codes
—We propose a multi-layer parallel decoding algorithm and VLSI architecture for decoding of structured quasi-cyclic low-density parity-check codes. In the conventional layered de...
Yang Sun, Guohui Wang, Joseph R. Cavallaro