Polar码在分集接收系统中的性能

翟平衡; 沈斌松; 梁进波

doi:10.11959/j.issn.1000-0801.2018014

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Polar码在分集接收系统中的性能

研究与开发 | 更新时间：2024-06-05

- Polar码在分集接收系统中的性能
- Performance of Polar code in diversity reception system
- 电信科学 2018年34卷第2期页码：32-38
- 作者机构：
- 作者简介：
  
  [ "翟平衡（1992−），男，中国电子科技集团公司第五十四研究所硕士生，主要研究方向为信道编码。" ]
  [ "沈斌松（1982-），男，中国电子科技集团公司第五十四研究所博士生、高级工程师，主要研究方向为调制解调技术。" ]
  [ "梁进波（1966-），男，中国电子科技集团公司第五十四研究所研究员，主要研究方向为散射通信技术。" ]
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2018014
  中图分类号： TN911
- 网络出版日期：2018-02，
  
  纸质出版日期：2018-02-20
- 稿件说明：
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翟平衡, 沈斌松, 梁进波. Polar码在分集接收系统中的性能[J]. 电信科学, 2018,34(2):32-38.

Pingheng ZHAI, Binsong SHEN, Jinbo LIANG. Performance of Polar code in diversity reception system[J]. Telecommunications science, 2018, 34(2): 32-38.
翟平衡, 沈斌松, 梁进波. Polar码在分集接收系统中的性能[J]. 电信科学, 2018,34(2):32-38. DOI： 10.11959/j.issn.1000-0801.2018014.

Pingheng ZHAI, Binsong SHEN, Jinbo LIANG. Performance of Polar code in diversity reception system[J]. Telecommunications science, 2018, 34(2): 32-38. DOI： 10.11959/j.issn.1000-0801.2018014.

摘要

分集接收技术是瑞利衰落信道中抗衰落最有效的办法之一，为了改善Polar码在瑞利衰落信道中的性能，提出了一种基于Polar码的分集接收系统。分析了Polar码在瑞利衰落信道中的构造方式，确定了分集接收系统中Polar码的信息位选择序列，并推导出了Polar码在分集接收系统中误码率的理论上界。仿真结果表明，当采用四重分集时，Polar码能获得3 dB的编码增益，相比LDPC码有0.6 dB的性能优势；当采用八重分集时，Polar码能获得5 dB的编码增益，相比LDPC码有1.5 dB的性能优势。分集接收能够显著提升Polar码在瑞利信道中的编码性能。

Abstract

Diversity reception is one of the most effective ways to resist fading over Rayleigh fading channels

in order to improve the performance of Polar codes over Rayleigh fading channels

a diversity reception system based on Polar code was proposed.The information bit selectionsequences of Polar codes in diversity reception were determined

and the upper bound of BER for Polar codes in diversity reception system was derived.The simulation results show that when quadruple diversity reception is used

the encoding gain is greater than 3 dB and has 0.6 dB performance advantage compared to LDPC code.Experiment results show that

when eightfold diversity is used

the encoding gain is greater than 5 dB and has 1.5 dB performance advantage compared to LDPC code

and diversity reception can significantly improve the performance of the system.

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