Results 31 to 40 of about 196,265 (325)

LDPC Code Design for Nonuniform Power-Line Channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
We investigate low-density parity-check code design for discrete multitone channels over power lines. Discrete multitone channels are well modeled as nonuniform channels, that is, different bits experience various channel parameters.
Masoud Ardakani, Ali Sanaei
doaj   +2 more sources

On the Stopping Distance of SA-LDPC Codes by Transversal Designs

open access: yesIEEE Access, 2018
In this paper, we analyze the size of the smallest stopping set (called the stopping distance) for the parity-check matrix of a superposed array low-density parity-check (SA-LDPC) code for column weights 3 and 4 by using the transversal design (TD ...
Zahra Ferdosi   +2 more
doaj   +1 more source

Simple reconfigurable low-density parity-check codes [PDF]

open access: yesIEEE Communications Letters, 2005
Low-density parity-check codes (LDPCC) have been recently investigated as a possible solution for high data rate applications, for both space and terrestrial wireless communications. A main issue is the research of low complexity encoding and decoding schemes.
LIVA, GIANLUIGI   +2 more
openaire   +3 more sources

Low-Density Parity-Check Codes and Their Rateless Relatives [PDF]

open access: yesIEEE Communications Surveys & Tutorials, 2011
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 will identify the most important milestones that have occurred since their conception until the current era and elucidate the related design problems and their respective ...
Bonello, Nicholas   +2 more
openaire   +3 more sources

Evaluation of Low Density Parity Check Codes Over Various Channel Types [PDF]

open access: yesEngineering and Technology Journal, 2011
Low density parity check (LDPC) codes are one of the best error correcting codes in today’s coding world and are known to approach the Shannon limit. As with all other channel coding schemes, LDPC codes add redundancy to the uncoded input data to make it
Mahmood Farhan Mosleh
doaj   +1 more source

Interactive reconciliation with low-density parity-check codes [PDF]

open access: yes2010 6th International Symposium on Turbo Codes & Iterative Information Processing, 2010
Efficient information reconciliation is crucial in several scenarios, being quantum key distribution a remarkable example. However, efficiency is not the only requirement for determining the quality of the information reconciliation process. In some of these scenarios we find other relevant parameters such as the interactivity or the adaptability to ...
Elkouss Coronas, David   +2 more
openaire   +5 more sources

Error-correction on non-standard communication channels [PDF]

open access: yes, 2003
Many communication systems are poorly modelled by the standard channels assumed in the information theory literature, such as the binary symmetric channel or the additive white Gaussian noise channel.
Ratzer, Edward Alexander
core   +2 more sources

Spatially Coupled Generalized Low-Density Parity-Check Codes Over Class-A Impulsive Noise Channels

open access: yesIEEE Access, 2019
In this paper, a class of spatially coupled generalized low-density parity-check (SC-GLDPC) codes with minimum coupling width is introduced to mitigate the Class-A impulsive noise. Codes with minimum coupling width are beneficial to simple code structure,
Ping Wang, Liuguo Yin, Jianhua Lu
doaj   +1 more source

Low-Density Parity-Check Codes

open access: yes, 2004
Low-density parity-check (LDPC) error correcting codes were introduced in 1963 by Robert Gallager in his Ph.D. thesis. The basic motivation came from the observation that random linear codes, cf.
Christian Schlegel, Lance C. Perez
semanticscholar   +1 more source

On the capacity of low-density parity-check codes [PDF]

open access: yesProceedings. 2001 IEEE International Symposium on Information Theory (IEEE Cat. No.01CH37252), 2002
We demonstrate that we can translate threshold values of low-density parity-check (LDPC) codes between channels accurately using a simple mapping. We develop some models of density evolution from this observation, namely erasure-channel and reciprocal-channel approximations.
Sae-Young Chung, G.D. Forney
openaire   +2 more sources

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