Performance Analysis of LDPC Codes for IEEE 802.16a OFDM System in Multipath Fading Channel

ZHU Qi; YE Fang; LIU Jun-lei; FENG Guang-zhen

您当前的位置：

首页 >

文章列表页 >

Performance Analysis of LDPC Codes for IEEE 802.16a OFDM System in Multipath Fading Channel

更新时间：2025-07-16

- Performance Analysis of LDPC Codes for IEEE 802.16a OFDM System in Multipath Fading Channel
- Acta Electronica Sinica Vol. 33, Issue 4, Pages: 624-628(2005)
- 作者机构：
  
  南京邮电学院通信工程系,江苏,南京,210003
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.22
- Published Online：25 April 2005，
  
  Published：2005
- 稿件说明：
移动端阅览
ZHU Qi, YE Fang, LIU Jun-lei, et al. Performance Analysis of LDPC Codes for IEEE 802.16a OFDM System in Multipath Fading Channel[J]. Acta Electronica Sinica, 2005, 33(4): 624-628.
DOI：

ZHU Qi, YE Fang, LIU Jun-lei, et al. Performance Analysis of LDPC Codes for IEEE 802.16a OFDM System in Multipath Fading Channel[J]. Acta Electronica Sinica, 2005, 33(4): 624-628. DOI：

摘要

本文通过对802.16a OFDM系统信道的分析

权衡估计的性能和算法复杂度两个因素

针对不同的传输环境

提出了动态的OFDM信道估计方案.另外我们找到了一组优秀的非正则LDPC码

将其应用于IEEE 802.16a OFDM环境中

仿真验证了它们在SUI-3和SUI-5多径衰落信道环境下具有良好的性能

并和协议中提出的卷积Turbo码进行了比较

结果证明在相同条件下

本文的LDPC码可以取得比协议提出的卷积Turbo码更优越的性能

具有更好的抗多径衰落的能力.

Abstract

Proposing a dynamic scheme of channel estimation for 802.16a OFDM system with the trade off between estimation performance and arithmetic complexity.In addition

we find a set of excellent irregular LDPC codes and examine the performance of them in multipath fading channel.Simulation shows that these codes have nice performance in SUI-3 and SUI-5 fading channels.Furthermore

we find that

under the multipath environments

the performance of LDPC codes is superior to that of the convolution turbo codes which is proposed by IEEE 802.16a standard.

关键词

Keywords

references

Views

994

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Multilevel Coded Modulation Based on Superimposed LDPC Codes

Some Quantization Issues for Decoding of Low-Density Parity Check Codes with BP Algorithm

Measure on the Performance of Belief Propagation Decoding Algorithm

A Method for Blind Recognition of LDPC Codes in a Noisy Environment

Related Author

WANG Xiu-ni

MA Xiao

BAI Bao-ming

SUN Shao-hui

SUN Rong

WANG Xin-mei

HE Yu-cheng

YANG Li

Related Institution

School of Information Science and Technology, Sun Yat-sen University

State Key Lab.of ISN,Xidian University

School of Information Science and TechnologySun Yat-sen UniversityGuangzhouGuangdong 510275China

State Key Lab.of ISNXidian UniversityXi’anShaanxi 710071China

National Key Lab of Integrated Service Networks,Xidian University

⁰