Results 11 to 20 of about 50,282 (262)

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

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

Adaptive Cut Generation Algorithm for Improved Linear Programming Decoding of Binary Linear Codes [PDF]

open access: yes, 2012
Linear programming (LP) decoding approximates maximum-likelihood (ML) decoding of a linear block code by relaxing the equivalent ML integer programming (IP) problem into a more easily solved LP problem.
Siegel, Paul H., Zhang, Xiaojie
core   +1 more source

Carrier phase recovery of LDPC-coded systems based on the likelihood difference algorithm

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
The problem of blind phase offset recovery of low density parity-check (LDPC)-coded systems is considered in this paper. We propose a new algorithm of phase offset estimation that involves the computation and maximization of a likelihood difference (LD ...
Rodrigue Imad, Sebastien Houcke
doaj   +1 more source

Weight Distribution for Non-binary Cluster LDPC Code Ensemble [PDF]

open access: yes, 2013
In this paper, we derive the average weight distributions for the irregular non-binary cluster low-density parity-check (LDPC) code ensembles. Moreover, we give the exponential growth rate of the average weight distribution in the limit of large code ...
Kasai, Kenta   +3 more
core   +2 more sources

Double-Layer Low-Density Parity-Check Codes over Multiple-Input Multiple-Output Channels

open access: yesInternational Journal of Antennas and Propagation, 2012
We introduce a double-layer code based on the combination of a low-density parity-check (LDPC) code with the multiple-input multiple-output (MIMO) system, where the decoding can be done in both inner-iteration and outer-iteration manners.
Yun Mao   +4 more
doaj   +1 more source

A construction of the high-rate regular quasi-cyclic LDPC codes

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
In this paper, a scheme to construct the high-rate regular quasi-cyclic low-density parity-check (QC-LDPC) codes is developed based on the finite geometry low-density parity-check (LDPC) codes.
Qi Meng   +3 more
doaj   +1 more source

Constructing Grith Eight GC-LDPC Codes Based on the GCD FLRM Matrix with a New Lower Bound

open access: yesSensors, 2022
By connecting multiple short, local low-density parity-check (LDPC) codes with a global parity check, the globally coupled (GC) LDPC code can attain high performances with low complexities.
Kun Zhu, Hongwen Yang
doaj   +1 more source

Message passing algorithms for non-linear nodes and data compression [PDF]

open access: yes, 2005
The use of parity-check gates in information theory has proved to be very efficient. In particular, error correcting codes based on parity checks over low-density graphs show excellent performances.
Ciliberti, S., Mezard, M., Zecchina, R.
core   +2 more sources

Genetic Optimization of LDPC Codes to Improve the Correction of Burst Errors [PDF]

open access: yesEPJ Web of Conferences, 2020
Error correction plays a crucial role when transmitting data from the source to the destination through a noisy channel. It has found many applications in television broadcasting services, data transmission in radiation harsh environment (e. g.
Broulím Jan   +2 more
doaj   +1 more source

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