Results 21 to 30 of about 24,779 (216)

Challenges and Some New Directions in Channel Coding [PDF]

, 2015
Three areas of ongoing research in channel coding are surveyed, and recent developments are presented in each area: spatially coupled Low-Density Parity-Check (LDPC) codes, nonbinary LDPC codes, and polar coding.This is the author accepted manuscript ...
Arikan, Erdal, Lentmaier, Michael, Montorsi, Guido, Sayir, Jossy, ul Hassan, Najeeb   +4 more
core   +4 more sources

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

Entropy, 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, Xue-Qin Jiang, Yan Feng, Runhe Qiu, Enjian Bai   +4 more
doaj   +1 more source

Statistical Mechanics of Broadcast Channels Using Low Density Parity Check Codes [PDF]

, 2002
We investigate the use of Gallager's low-density parity-check (LDPC) codes in a broadcast channel, one of the fundamental models in network information theory.
D.J. Thouless, David Saad, H.A. Bethe, Kazutaka Nakamura, N. Sourlas, P.P. Bergmans, R.G. Gallager, Robert Morelos-Zaragoza, T. Richardson, T.M. Cover, T.M. Cover, W. Van Gils, W. Van Gils, Y. Iba, Y. Kabashima, Y. Kabashima, Yoshiyuki Kabashima   +16 more
core   +2 more sources

Rate-compatible multi-edge type low-density parity-check code ensembles for continuous-variable quantum key distribution systems

npj Quantum Information, 2022
In this paper, we propose a design rule of rate-compatible punctured multi-edge type low-density parity-check (MET-LDPC) code ensembles with degree-one variable nodes for the information reconciliation (IR) of continuous-variable quantum key distribution
Suhwang Jeong, Hyunwoo Jung, J. Ha
semanticscholar   +1 more source

Design and performance of a novel low-density parity-check code for distributed video coding [PDF]

, 2008
Low-density parity-check (LDPC) codes are nowadays one of the hottest topics in coding theory, notably due to their advantages in terms of bit error rate performance and low complexity.
Ascenso, Joao, Brites, Catarina, Pereira, Fernando   +2 more
core   +2 more sources

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

Entropy, 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

Design and Analysis of Time-Invariant SC-LDPC Convolutional Codes With Small Constraint Length

, 2017
In this paper, we deal with time-invariant spatially coupled low-density parity-check convolutional codes (SC-LDPC-CCs). Classic design approaches usually start from quasi-cyclic low-density parity-check (QC-LDPC) block codes and exploit suitable ...
Baldi, Marco, Battaglioni, Massimo, Cancellieri, Giovanni, Chiaraluce, Franco, Tasdighi, Alireza   +4 more
core   +1 more source

Research on unequal error protection of irregular LDPC codes

Tongxin 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

A Class of Quantum LDPC Codes Constructed From Finite Geometries

, 2008
Low-density parity check (LDPC) codes are a significant class of classical codes with many applications. Several good LDPC codes have been constructed using random, algebraic, and finite geometries approaches, with containing cycles of length at least ...
Aly, Salah A.
core   +1 more source

Entanglement-assisted quantum low-density parity-check codes [PDF]

, 2010
This paper develops a general method for constructing entanglement-assisted quantum low-density parity-check (LDPC) codes, which is based on combinatorial design theory.
C. J. Colbourn, C. J. Colbourn, D. J. C. MacKay, D. J. C. MacKay, D. Poulin, David Clark, E. F. Assmus, I. Devetak, M. Hagiwara, M. Hall, Maarten De Boeck, N. Hamada, N. Hamada, P. Dembowski, Peter Vandendriessche, R. G. Gallager, R. Graham, S. A. Aly, S. J. Johnson, S. J. Johnson, T. Beth, T. Camara, T. P. Kirkman, V. D. Tonchev, Vladimir D. Tonchev, Yuichiro Fujiwara   +25 more
core   +4 more sources