针对浅海水声通信的极化码构造与应用研究

邢莉娟; 李卓; 黄彦彪

doi:10.19665/j.issn1001-2400.20230505

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针对浅海水声通信的极化码构造与应用研究

信息与通信工程 | 更新时间：2024-06-03

- 针对浅海水声通信的极化码构造与应用研究
- Research on the construction and application of polar codes for shallow water acoustic communication
- 西安电子科技大学学报 2024年51卷第2期页码：116-125
- 作者机构：
  
  西安电子科技大学空天地一体化综合业务网全国重点实验室,陕西西安 710071
- 作者简介：
  
  [ "邢莉娟(1982—),女,副教授,E-mail:[email protected]; " ]
  李卓(1980—),男,教授,E-mail:[email protected]
  [ "黄彦彪(1997—),男,西安电子科技大学硕士研究生,E-mail:[email protected]" ]
- 基金信息：
  
  国家自然科学基金(61372072);高等学校学科创新引智计划(111计划)(B08038)
- DOI：10.19665/j.issn1001-2400.20230505
  中图分类号： TN911.22
- 纸质出版日期：2024-4-20，
  
  网络出版日期：2023-9-20，
  
  收稿日期：2023-4-3，
扫描看全文
邢莉娟, 李卓, 黄彦彪. 针对浅海水声通信的极化码构造与应用研究[J]. 西安电子科技大学学报, 2024,51(2):116-125.

Lijuan XING, Zhuo LI, Yanbiao HUANG. Research on the construction and application of polar codes for shallow water acoustic communication[J]. Journal of Xidian University, 2024,51(2):116-125.
邢莉娟, 李卓, 黄彦彪. 针对浅海水声通信的极化码构造与应用研究[J]. 西安电子科技大学学报, 2024,51(2):116-125. DOI： 10.19665/j.issn1001-2400.20230505.

Lijuan XING, Zhuo LI, Yanbiao HUANG. Research on the construction and application of polar codes for shallow water acoustic communication[J]. Journal of Xidian University, 2024,51(2):116-125. DOI： 10.19665/j.issn1001-2400.20230505.

摘要

为了实现浅海环境中高速率和高可靠通信

研究了极化码编译码技术在浅海水声通信中的性能。针对基于射线声学理论建立的时不变、准静止和时变3种浅海水声信道模型

采用蒙特卡罗构造算法完成相应极化码的构造

并分别与信道极化和信道退化构造算法、基对称扩展极化权重构造算法进行了复杂度和性能比较。将构造的极化码作为文中基于正交频分复用的水声通信系统的信道编码方案

译码方案使用循环冗余校验辅助的串行抵消列表译码算法。通过仿真模拟分析了上述3种信道中极化码的性能

并与码长和码率相同的低密度奇偶校验码的性能进行对比分析;结果显示在这3种信道中

在关注的信噪比范围内极化码相对于低密度奇偶校验码约有0.5 dB~1.2 dB的增益。3种信道仿真对比结果表明

基于信道构造编码的极化码相比低密度奇偶校验码在恶劣的信道环境中有更好的增益效果

且极化码有更低的编译码复杂度

证明了极化码在能量和资源受限的浅海水声通信中具有广阔的应用前景。

Abstract

To realize high speed and high-reliability communication in shallow water environments

the performance of polar code encoding and decoding technology in shallow water acoustic communication is studied.The Monte Carlo algorithm construction is used to complete the construction of polar codes on the time-invariant

quasi-stationary

and time-variant channel models established based on the ray acoustic theory

and the complexity and performance are compared with those of the channel polarization and channel degradation construction algorithms and the base-symmetric extended polarization weight construction algorithm.The constructed polar code is adopted as the channel coding scheme for the underwater acoustic communication system based on Orthogonal Frequency Division Multiplexing and the decoding scheme uses a Cyclic Redundancy Check-Aided Successive Cancellation List decoding algorithm.The performance of polar codes on these three channels is determined by simulation in comparison with the performance of Low-Density Parity Check codes with the same code length and code rate.Experimental results show that in these three channels and the range of the signal-to-noise ratio of interest

polar codes have a gain of about 0.5 dB ~ 1.2 dB relative to Low-Density Parity Check codes.Simulation comparison results of the three channels show that polar codes based on channel construction coding have better gain effects in harsh channel environments compared to Low-Density Parity Check codes

and that polar codes have a lower encoding and decoding complexity

which proves the competitiveness and broad application prospect of the polar code in energy and resource-limited shallow sea acoustic communication.

关键词

水声通信正交频分复用极化码蒙特卡罗构造

Keywords

underwater acoustic communicationOFDMpolar codesMonte Carlo construction

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