Evaluation of Low Density Parity-Check Codes on Frequency-Selective Fading Channels

机译：选频衰落信道上低密度奇偶校验码的评估

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Many papers have shown that low density parity-check (LDPC) codes exhibit excellent performance in the additive white noise (AWGN) channel and flat fading channels, but their performance on frequency-selective fading channels slightly degrades. In this paper, we evaluate the performance of quasi-regular low density parity-check codes in frequency-selective fading channels based on the large area synchronization code division multiple access (LAS-CDMA) system. Simulation results show that LDPC codes outperform turbo codes at high signal-to-noise ratio (SNR) over a wild range of mobile speeds. Furthermore we simply analyze the reasons on their differences on performance, indicating that the distance spectrum plays a very important role to the performance of codes.

机译：许多论文表明，低密度奇偶校验（LDPC）码在加性白噪声（AWGN）信道和平坦衰落信道中表现出出色的性能，但是它们在频率选择衰落信道上的性能会稍有下降。在本文中，我们基于大面积同步码分多址（LAS-CDMA）系统评估了频率选择性衰落信道中准规则低密度奇偶校验码的性能。仿真结果表明，在较高的移动速度范围内，LDPC码在高信噪比（SNR）方面优于Turbo码。此外，我们仅分析了它们在性能上差异的原因，表明距离谱对代码的性能起着非常重要的作用。

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来源
《International Symposium on Communications and Information Technologies(ISCIT 2005) vol.1; 20051012-14; Beijgin(CN)》|2005年|P.68-71|共4页
会议地点 Beijgin(CN)
作者
Deshan Miao; Daoben Li;
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作者单位

School of information engineering Beijing University of Posts and Telecommunications, Beijing, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类通信;
关键词
LDPC; frequency-selective fading channels; LAS-CDMA;

机译：LDPC;频率选择性衰落信道; LAS-CDMA;

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专利

1. Optimized irregular low-density parity-check codes for multicarrier modulations over frequency-selective channels [J] . Mannoni V, Declercq D, Gelle G EURASIP journal on applied signal processing . 2004,第10期

机译：针对频率选择信道上的多载波调制的优化不规则低密度奇偶校验码
2. Optimized Irregular Low-Density Parity-Check Codes for Multicarrier Modulations over Frequency-Selective Channels [J] . Val#233, rian Mannoni, David Declercq, EURASIP journal on advances in signal processing . 2004,第10期

机译：针对频率选择信道上的多载波调制的优化的不规则低密度奇偶校验码
3. Decoding of non-binary low-density parity-check codes based on the genetic algorithm and applications over mobile fading channels [J] . Liu Xingcheng, Liang Chulong, Zhang Yuanbin, Communications, IET . 2015,第16期

机译：基于遗传算法的非二进制低密度奇偶校验码的解码及其在移动衰落信道上的应用
4. Evaluation of Low Density Parity-Check Codes on Frequency-Selective Fading Channels [C] . . 2005

机译：选频衰落信道上低密度奇偶校验码的评估
5. Low-density parity-check codes and iterative decoding algorithms for input-constrained channels and channels with memory. [D] . Vijacksungsithi, Wongkot. 2003

机译：输入受限通道和带存储器的通道的低密度奇偶校验码和迭代解码算法。
6. Cooperative Spectrum Sensing with Coded and Uncoded Decision Fusion under Correlated Shadowed Fading Report Channels [O] . Lucas dos Santos Costa, Dayan Adionel Guimarães, Rausley Adriano Amaral de Souza, 2019

机译：相关阴影衰落报告通道下带编码和非编码决策融合的协作频谱感知
7. Optimized Irregular Low-Density Parity-Check Codes for Multicarrier Modulations over Frequency-Selective Channels [O] . Valérian Mannoni, David Declercq, Guillaume Gelle 2004

机译：针对频率选择信道上的多载波调制的优化的不规则低密度奇偶校验码

Evaluation of Low Density Parity-Check Codes on Frequency-Selective Fading Channels

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