Results 11 to 20 of about 108,131 (252)

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

Blockwise and Low Density Key Error Correcting Codes [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2020
To protect the information from disturbances created by noisy channels, redundant symbols (called check symbols) with the information symbols are added. These extra symbols play important role for the efficiency of the communication system.
Pankaj Kumar Das, Subodh Kumar
doaj   +1 more source

Codes on Key Errors

open access: yesCybernetics and Information Technologies, 2014
Coding theory has started with the intention of detection and correction of errors which have occurred during communication. Different types of errors are produced by different types of communication channels and accordingly codes are developed to deal ...
Das P. K.
doaj   +1 more source

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

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.
BroulĂ­m Jan   +2 more
doaj   +1 more source

Low Density Parity Check Codes Constructed from Hankel Matrices

open access: yesJournal of Telecommunications and Information Technology, 2018
In this paper, a new technique for constructing low density parity check codes based on the Hankel matrix and circulant permutation matrices is proposed. The new codes are exempt of any cycle of length 4.
Mohammed Amine Tehami
doaj   +1 more source

Extracting embedded messages using adaptive steganography based on optimal syndrome-trellis decoding paths

open access: yesDigital Communications and Networks, 2022
Privacy protection is the key to maintaining the Internet of Things (IoT) communication strategy. Steganography is an important way to achieve covert communication that protects user data privacy.
Jialin Li   +5 more
doaj   +1 more source

Low density parity check codes with semi-randomparity check matrix

open access: yesElectronics Letters, 1999
A semi-random approach to low density parity check code design is shown to achieve essentially the same performance as an existing method, but with considerably reduced complexity.
null Li Ping   +2 more
openaire   +1 more source

Reconstruction of sparse check matrix for LDPC at high bit error rate

open access: yesTongxin xuebao, 2021
In order to reconstruct the sparse check matrix of LDPC, a new algorithm which could directly reconstruct the LDPC was proposed.Firstly, according to the principle of the traditional reconstruction algorithm, the defects of the traditional algorithm and ...
Zhaojun WU   +3 more
doaj   +2 more sources

LDPC codes from the Hermitian curve [PDF]

open access: yes, 2007
In this paper, we study the code C which has as parity check matrix H the incidence matrix of the design of the Hermitian curve and its (q + 1)-secants. This code is known to have good performance with an iterative decoding algorithm, as shown by Johnson
Pepe, Valentina
core   +1 more source

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