Results 11 to 20 of about 826 (159)

New Construction of Low-Density Parity-Check Codes Based on Vector Space Over Finite Fields

open access: yesIEEE Access, 2020
Low-Density Parity-Check (LDPC) codes have low linear decoding complexity, which is a kind of good codes with excellent performance. Therefore, LDPC codes have great research value.
Xuemei Liu, Lihua Jia
doaj   +1 more source

Blind recognition of sparse parity‐check matrices of low‐density parity‐check codes in the presence of noise

open access: yesIET Communications, 2023
This paper studies the blind recognition method of the sparse parity‐check matrices of low‐density parity‐check codes in noncooperative communication, which is critical to the reverse analysis of communication protocols using LDPC codes.
Yong Ding, Zhiping Huang, Jing Zhou
doaj   +1 more source

Generalized Low-Density Parity-Check Coding Scheme with Partial-Band Jamming

open access: yesTsinghua Science and Technology, 2014
In this study, a class of Generalized Low-Density Parity-Check (GLDPC) codes is designed for data transmission over a Partial-Band Jamming (PBJ) environment.
Qi Li, Xinru Qu, Liuguo Yin, Jianhua Lu
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

CONSTRUCTION OF REGULAR LDPC LIKE CODES BASED ON FULL RANK CODES AND THEIR ITERATIVE DECODING USING A PARITY CHECK TREE [PDF]

open access: yesICTACT Journal on Communication Technology, 2011
Low density parity check (LDPC) codes are capacity-approaching codes, which means that practical constructions exist that allow the noise threshold to be set very close to the theoretical Shannon limit for a memory less channel.
H. Prashantha Kumar   +2 more
doaj  

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

Research on unequal error protection of irregular LDPC codes

open access: yesTongxin xuebao, 2005
An irregular low-density parity-check (LDPC) code with unequal error protection (UEP) property was proposed. A weight-increasing parity-check (WIPC) matrix was constructed.
MA Pi-ming, YUAN Dong-feng, YANG Xiu-mei
doaj   +2 more sources

High Efficiency Continuous-Variable Quantum Key Distribution Based on ATSC 3.0 LDPC Codes

open access: yesEntropy, 2020
Due to the rapid development of quantum computing technology, encryption systems based on computational complexity are facing serious threats. Based on the fundamental theorem of quantum mechanics, continuous-variable quantum key distribution (CVQKD) has
Kun Zhang   +4 more
doaj   +1 more source

Encoding of QC-LDPC Codes of Rank Deficient Parity Matrix

open access: yesJournal of Engineering, 2016
the encoding of long low density parity check (LDPC) codes presents a challenge compared to its decoding. The Quasi Cyclic (QC) LDPC codes offer the advantage for reducing the complexity for both encoding and decoding due to its QC structure.
Mohammed Kasim Mohammed Al-Haddad
doaj   +2 more sources

An Efficient Method to Construct Parity-Check Matrices for Recursively Encoding Spatially Coupled LDPC Codes †

open access: yesEntropy, 2016
Spatially coupled low-density parity-check (LDPC) codes have attracted considerable attention due to their promising performance. Recursive encoding of the codes with low delay and low complexity has been proposed in the literature but with constraints ...
Zhongwei Si, Sijie Wang, Junyang Ma
doaj   +1 more source

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