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A method for estimating the performance of low-density parity-check (LDPC) codes decoded by hard-decision iterative decoding algorithms on binary symmetric channels (BSC) is proposed. Based on the enumeration of the smallest weight error…

信息论 · 计算机科学 2007-07-13 Hua Xiao , Amir H. Banihashemi

This paper applies error-exponent and dispersion-style analyses to derive finite-blocklength achievability bounds for low-density parity-check (LDPC) codes over the point-to-point channel (PPC) and multiple access channel (MAC). The…

信息论 · 计算机科学 2020-05-14 Yuxin Liu , Michelle Effros

In this study, an optimization model for offline scheduling policy of low-density parity-check (LDPC) codes is proposed to improve the decoding efficiency of the belief propagation (BP). The optimization model uses the number of messages…

信息论 · 计算机科学 2024-08-07 Dongxu Chang , Zhiming Ma , Guanghui Wang , Guiying Yan , Dawei Yin

In this paper, we introduce a new practical and general method for solving the main problem of designing the capacity approaching, optimal rate, irregular low-density parity-check (LDPC) code ensemble over binary erasure channel (BEC).…

信息论 · 计算机科学 2016-11-18 H. Tavakoli , M. Ahmadian Attari , M. Reza Peyghami

Low density parity-check (LDPC) codes are a class of linear block codes that are decoded by running belief propagation (BP) algorithm or log-likelihood ratio belief propagation (LLR-BP) over the factor graph of the code. One of the…

信息论 · 计算机科学 2011-07-15 A. Dinesh Kumar , Ambedkar Dukkipati

Some low-complexity LDPC decoders suffer from error floors. We apply iteration-dependent weights to the degree-3 variable nodes to solve this problem. When the 802.3ca EPON LDPC code is considered, an error floor decrease of more than 3…

信息论 · 计算机科学 2022-06-24 Lotte Paulissen , Alex Alvarado , Kaiquan Wu , Alexios Balatsoukas-Stimming

Ensuring extremely high reliability in channel coding is essential for 6G networks. The next-generation of ultra-reliable and low-latency communications (xURLLC) scenario within 6G networks requires frame error rate (FER) below $10^{-9}$.…

信息论 · 计算机科学 2024-11-18 Hee-Youl Kwak , Dae-Young Yun , Yongjune Kim , Sang-Hyo Kim , Jong-Seon No

In this paper, a new method for decoding Low Density Parity Check (LDPC) codes, based on Multi-Layer Perceptron (MLP) neural networks is proposed. Due to the fact that in neural networks all procedures are processed in parallel, this method…

信息论 · 计算机科学 2014-11-14 Alireza Karami , Mahmoud Ahmadian Attari

We propose a new low-density parity-check code construction scheme based on 2-lifts. The proposed codes have an advantage of admitting efficient hardware implementations. With the motivation of designing codes with low error floors, we…

信息论 · 计算机科学 2009-08-27 Xudong Ma , En-hui Yang

In this paper, we introduce an efficient iterative solver for the joint linear-programming (LP) decoding of low-density parity-check (LDPC) codes and finite-state channels (FSCs). In particular, we extend the approach of iterative…

信息论 · 计算机科学 2016-11-17 Byung-Hak Kim , Henry D. Pfister

Departing from traditional communication theory where decoding algorithms are assumed to perform without error, a system where noise perturbs both computational devices and communication channels is considered here. This paper studies…

信息论 · 计算机科学 2010-05-31 Lav R. Varshney

Protograph low-density-parity-check (LDPC) are considered to design near-capacity low-rate codes over the binary erasure channel (BEC) and binary additive white Gaussian noise (BIAWGN) channel. For protographs with degree-one variable nodes…

信息论 · 计算机科学 2018-05-03 Asit Kumar Pradhan , Andrew Thangaraj

The design of optimal linear block codes capable of being efficiently decoded is of major concern, especially for short block lengths. As near capacity-approaching codes, Low-Density Parity-Check (LDPC) codes possess several advantages over…

信息论 · 计算机科学 2024-10-11 Yoni Choukroun , Lior Wolf

Channel coding aims to minimize errors that occur during the transmission of digital information from one place to another. Low-density parity-check (LDPC) codes can detect and correct transmission errors if one encodes the original…

信息论 · 计算机科学 2018-03-14 Banu Kabakulak , Z. Caner Taşkın , Ali Emre Pusane

We address noisy message-passing decoding of lowdensity parity-check (LDPC) codes over additive white Gaussian noise channels. Message-passing decoders in which certain processing units iteratively exchange messages are common for decoding…

信息论 · 计算机科学 2015-06-02 Alla Tarighati , Hamed Farhadi , Farshad Lahouti

Low-density parity-check (LDPC) coding for a multitude of equal-capacity channels is studied. First, based on numerous observations, a conjecture is stated that when the belief propagation decoder converges on a set of equal-capacity…

信息论 · 计算机科学 2016-11-17 Ali Sanaei , Mahdi Ramezani , Masoud Ardakani

We propose a deterministic method to design irregular Low-Density Parity-Check (LDPC) codes for binary erasure channels (BEC). Compared to the existing methods, which are based on the application of asymptomatic analysis tools such as…

信息论 · 计算机科学 2008-01-24 Hamid Saeedi , Amir H. Banihashemi

Iterative decoders used for decoding low-density parity-check (LDPC) and moderate-density parity-check (MDPC) codes are not characterized by a deterministic decoding radius and their error rate performance is usually assessed through…

信息论 · 计算机科学 2020-02-27 Paolo Santini , Massimo Battaglioni , Marco Baldi , Franco Chiaraluce

In this paper, we focus on the two-user Gaussian interference channel (GIC), and study the Han-Kobayashi (HK) coding/decoding strategy with the objective of designing low-density parity-check (LDPC) codes. A code optimization algorithm is…

信息论 · 计算机科学 2014-05-27 Shahrouz Sharifi , A. Korhan Tanc , Tolga M. Duman

Linear nested codes, where two or more sub-codes are nested in a global code, have been proposed as candidates for reliable multi-terminal communication. In this paper, we consider nested array-based spatially coupled low-density…

信息论 · 计算机科学 2021-02-23 Salman Habib , David G. M. Mitchell , Joerg Kliewer