Results 1 to 10 of about 50,282 (262)

Design of Low-Density Parity-Check Code Pair for Joint Source-Channel Coding Systems Based on Graph Theory [PDF]

open access: yesEntropy, 2023
In this article, a graph-theoretic method (taking advantage of constraints among sets associated with the corresponding parity-check matrices) is applied for the construction of a double low-density parity-check (D-LDPC) code (also known as LDPC code ...
Yijie Lv   +3 more
doaj   +2 more sources

EXIT Charts for Low-Density Algebra-Check Codes [PDF]

open access: yesEntropy
This paper focuses on the Low-Density Algebra-Check (LDAC) code, a novel low-rate channel code derived from the Low-Density Parity-Check (LDPC) code with expanded algebra-check constraints.
Zuo Tang, Jing Lei, Ying Huang
doaj   +2 more sources

An Efficient Two-Stage Decoding Scheme for LDPC-CRC Concatenated Codes [PDF]

open access: yesEntropy
In modern communication systems, the concatenation of a low-density parity-check (LDPC) code with a cyclic redundancy check (CRC) code is commonly used for error correction.
Lingjun Kong   +3 more
doaj   +2 more sources

Localized statistics decoding for quantum low-density parity-check codes [PDF]

open access: yesNature Communications
Quantum low-density parity-check codes are a promising candidate for fault-tolerant quantum computing with considerably reduced overhead compared to the surface code.
Timo Hillmann   +5 more
doaj   +2 more sources

A Compressed Sensing-Based Low-Density Parity-Check Real-Number Code

open access: greenRadioengineering, 2013
In this paper, we propose a novel low-density parity-check real-number code, based on compressed sensing. A real-valued message is encoded by a coding matrix (with more rows than columns) and transmitted over an erroneous channel, where sparse errors ...
Zaixing He   +4 more
doaj   +2 more sources

Low-Density Parity-Check Codes as Stable Phases of Quantum Matter

open access: goldPRX Quantum
Phases of matter with robust ground-state degeneracy, such as the quantum toric code, are known to be capable of robust quantum information storage. Here, we address the converse question: given a quantum error-correcting code, when does it define a ...
Chao Yin, Andrew Lucas
doaj   +2 more sources

An improved method for counting 6-cycles in low-density parity-check codes [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2023
Since their rediscovery in the early 1990s, low-density parity-check (LDPC) codes have become the most popular error-correcting codes owing to their excellent performance. An LDPC code is a linear block code that has a sparse parity-check matrix.
Slimani Djamel, Kaddai Abdellah
doaj   +1 more source

Decoding across the quantum low-density parity-check code landscape

open access: yesPhysical Review Research, 2020
We show that belief propagation combined with ordered statistics post-processing is a general decoder for quantum low-density parity-check codes constructed from the hypergraph product.
Joschka Roffe   +3 more
doaj   +1 more source

LDPC Code Design for Nonuniform Power-Line Channels

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
We investigate low-density parity-check code design for discrete multitone channels over power lines. Discrete multitone channels are well modeled as nonuniform channels, that is, different bits experience various channel parameters.
Masoud Ardakani, Ali Sanaei
doaj   +2 more sources

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

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