Results 91 to 100 of about 8,172 (227)

Finite Length Analysis of Low-Density Parity-Check Codes on Impulsive Noise Channels

open access: yesIEEE Access, 2016
Low-density parity-check (LDPC) codes with very long block lengths are well known for their powerful error correction, but it is not always desirable to employ long codes in communication systems, where latency is a serious issue, such as voice and video
Zhen Mei   +3 more
doaj   +1 more source

A low‐complexity block EP‐based detector for iterative detection and decoding in unsourced random access

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
Here, a multi‐user signal iterative detection and decoding scheme named LBEP based on block expectation propagation (BEP) is proposed for LDPC‐coded two‐phase unsourced random access (URA) scheme. In the iteratively process, the approximation of matrix inversion is used to facilitate expectation propagation (EP). The numerical results show that, in the
Jinyang Chen   +5 more
wiley   +1 more source

Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability

open access: yesICT Express
In this paper, we propose a new design metric called modified outage probability (MOP) for protograph-based low-density parity-check (LDPC) codes over the uncorrelated Rayleigh fading channel.
Woong-Shin Kwak, Jae-Won Kim
doaj   +1 more source

Design of rate-compatible LDPC codes based on uniform shortening distribution

open access: yesEngineering and Applied Science Research, 2018
Information shortening is a methodology to construct rate-compatible codes. Recently, LDPC codes have been shown that uniform shortening distribution is a criterion to achieve excellent performance.
Arisa Wongsriwor   +2 more
doaj   +1 more source

Single and joint iterative decoding for higher order modulation schemes [PDF]

open access: yes, 2008
The research project described in this thesis concentrates on the study, and application of specific channel coding techniques, in particular, low-density parity-check (LDPC) codes, iterative decoding on Tanner graphs, and their application on joint ...
Vital, Juan Carlos Serrato
core  

Protograph EXIT Analysis over Block Fading Channels with Application to Relays

open access: yes, 2012
An accurate extrinsic information transfer (EXIT) analysis is developed for protograph low-density parity-check (LDPC) codes over the block fading channel (BFC). The analysis is thus exploited for analyzing the behavior of distributed protograph LDPC
Pulini, Paola   +5 more
core   +1 more source

Sparse Regression LDPC Codes

open access: yesIEEE Transactions on Information Theory
This work has been submitted to the IEEE for possible publication.
Jamison R. Ebert   +2 more
openaire   +2 more sources

Design of low-density parity-check codes: An overview

open access: yes, 2011
This article provides an overview of the conflicting design tradeoffs of low-density parity-check (LDPC) codes and thus advocates a more holistic approach to their design for wireless channels.
Chen, Sheng   +2 more
core  

Short Low-Rate Non-Binary Turbo Codes

open access: yes, 2012
A serial concatenation of an outer non-binary turbo code with different inner binary codes is introduced and analyzed. The turbo code is based on memory-1 time-variant recursive convolutional codes over high order fields.
Paolini, Enrico   +9 more
core   +1 more source

FNT-based reed-solomon erasure codes [PDF]

open access: yes, 2009
This paper presents a new construction of Maximum-Distance Separable (MDS) Reed-Solomon erasure codes based on Fermat Number Transform (FNT). Thanks to FNT, these codes support practical coding and decoding algorithms with complexity O(n log n), where n ...
Soro, Alexandre   +3 more
core   +1 more source

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