Results 1 to 10 of about 17,939 (91)

Decoder-in-the-Loop: Genetic Optimization-Based LDPC Code Design [PDF]

open access: yesIEEE Access, 2019
LDPC code design tools typically rely on asymptotic code behavior and are affected by an unavoidable performance degradation due to model imperfections in the short length regime.
Ahmed Elkelesh   +4 more
doaj   +4 more sources

4-CYCLE FREE APM LDPC CODES WITH AN EXPLICIT CONSTRUCTION [PDF]

open access: yesJournal of Algebraic Systems, 2021
Recently, a class of low-density parity-check codes based on affine permutation matrices, called APM-LDPC codes, have been considered which have some advantages than quasi-cyclic (QC) LDPC codes in terms of minimum-distance, cycle distribution, and error-
Z. Gholami, M. Gholami
doaj   +1 more source

Block Markov superposition transmission of LDPC codes

open access: yesJournal of Information and Intelligence, 2023
In this paper, based on the block Markov superposition transmission (BMST) technique, we present a new class of coupled low-density parity-check (LDPC) codes for the transport block (TB)-based transmission to improve the error-correcting performance. For
Qianfan Wang, Kongjing Guo, Xiao Ma
doaj   +1 more source

The design of structured LDPC codes with algorithmic graph construction [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
Low-Density Parity-Check (LDPC) codes are among the most effective modern error-correcting codes due to their excellent correction performance and highly parallel decoding scheme.
Wojciech Sułek
doaj   +1 more source

Optimizing quasi-cyclic spatially coupled LDPC codes by eliminating harmful objects

open access: yesEURASIP Journal on Wireless Communications and Networking, 2023
It is well known that some harmful objects in the Tanner graph of low-density parity-check (LDPC) codes have a negative impact on their error correction performance under iterative message-passing decoding.
Massimo Battaglioni   +4 more
doaj   +1 more source

Connectivity constrains quantum codes [PDF]

open access: yesQuantum, 2022
Quantum low-density parity-check (LDPC) codes are an important class of quantum error correcting codes. In such codes, each qubit only affects a constant number of syndrome bits, and each syndrome bit only relies on some constant number of qubits ...
Nouédyn Baspin, Anirudh Krishna
doaj   +1 more source

Effective identification of dominant fully absorbing sets for Raptor-like LDPC codes

open access: yesETRI Journal, 2023
The error-rate floor of low-density parity-check (LDPC) codes is attributed to the trapping sets of their Tanner graphs. Among them, fully absorbing sets dominantly affect the error-rate performance, especially for short blocklengths.
Woncheol Cho   +3 more
doaj   +1 more source

A Time Sharing Hybrid Probabilistic Shaping Scheme for Nonbinary LDPC Codes

open access: yesIEEE Access, 2020
A time sharing (TS) hybrid probabilistic shaping (HPS) scheme for nonbinary (NB) LDPC codes is proposed. For the conventional probabilistic shaping (CPS) scheme, the demodulator uses bit-metric decoding (BMD) for binary LDPC codes and NB LDPC codes ...
Zhanji Wu, Weimin Kang
doaj   +1 more source

High performance short-block binary regular LDPC codes

open access: yesAlexandria Engineering Journal, 2018
LDPC code shows a good performance with long-block codes. However, certain channels are constrained to use short-block codes due to latency. Therefore, concatenated LDPC codes with iterative decoding is a good choice to get a good performance ...
Latifa Mostari, Abdelmalik Taleb-Ahmed
doaj   +1 more source

INCREASING THE WIRELESS SYSTEMS INFORMATION EFFICIENCY USING LDPC CODING

open access: yesInformation and Telecommunication Sciences, 2019
Background. LDPC codes research is performed in the paper. The influence of LDPC codes on channel information efficiency is studied in scope of MCS and the benefit of using LDPC codes is specified in digits as a result of research. Objective. The purpose
Leonid Uryvsky   +2 more
doaj   +1 more source

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