水声通信中极化码的应用研究
Research on the Application of Polar Codes in Underwater Acoustic Communication
- 电子学报 2022年50卷第9期 页码：2096-2101
- 作者机构：
西安电子科技大学综合业务网国家重点实验室, 陕西西安 710071
- 作者简介：
[ "邢莉娟 女， 1982年出生， 陕西西安人， 博士， 西安电子科技大学副教授， 主要研究方向为量子信息论、 信道编码与调制技术.E-mail: ljxing@mail.xidian.edu.cn" ]
[ "李 卓 男， 1980年出生， 陕西西安人， 博士， 西安电子科技大学教授， 主要研究方向为量子计算、 量子信息论、 5G中的编码调制技术.E-mail: lizhuo@xidian.edu.cn" ]
- 基金信息：国家自然科学基金(61372072);111工程基金资助项目(B08038);中央高校基本科研业务费专项资金资助项目
DOI：10.12263/DZXB.20210317
中图分类号： TN911.22收稿：2021-03-07，
修回：2021-12-16，
纸质出版：2022-09-25
- 稿件说明：
移动端阅览
邢莉娟,李卓,张泽栋.水声通信中极化码的应用研究[J].电子学报,2022,50(09):2096-2101.
XING Li-juan,LI Zhuo,ZHANG Ze-dong.Research on the Application of Polar Codes in Underwater Acoustic Communication[J].ACTA ELECTRONICA SINICA,2022,50(09):2096-2101.
邢莉娟,李卓,张泽栋.水声通信中极化码的应用研究[J].电子学报,2022,50(09):2096-2101. DOI： 10.12263/DZXB.20210317.
XING Li-juan,LI Zhuo,ZHANG Ze-dong.Research on the Application of Polar Codes in Underwater Acoustic Communication[J].ACTA ELECTRONICA SINICA,2022,50(09):2096-2101. DOI： 10.12263/DZXB.20210317.
摘要
针对水声信道复杂多变、强多途和大起伏干扰等特点，本文建立了以极化码作为信道编码方案的水声通信系统，以提高水声数据传输的可靠性.针对声速为常数的均匀介质信道（Invariable Sound Velocity Gradient，ISVG）、负声速梯度信道（Negative Sound Velocity Gradient，NSVG）及正声速梯度信道（Positive Sound Velocity Gradient，PSVG），提出将蒙特卡洛构造作为极化码的构造方案，并在各自信道下进行性能仿真.结果表明，本文所提出的极化码构造方案在三种信道下可行有效. 与码长相近的低密度奇偶校验（Low Density Parity Check， LDPC）码相比，极化码编码结构清晰，编码复杂度较LDPC码更低，在同等信噪比条件下极化码的纠错性能更优，在提高信噪比时其误码率曲线下降速度更快，可以获得更高的编码增益，证明了极化码在水声通信系统中具有很强的竞争力，可以较为明显地提高水声通信系统的性能，在复杂的水声信道中拥有很好的应用前景.
Abstract
Aiming at the characteristics of the underwater acoustic channel such as complex and changeable
strong multi-path and large fluctuation interference
this paper establishes an underwater acoustic communication system with polar code as the channel coding scheme to improve the reliability of underwater acoustic data transmission. Aiming at the channel with invariable sound velocity gradient(ISVG)
negative sound velocity gradient(NSVG) and positive sound velocity gradient(PSVG)
a Monte Carlo construction is proposed as a construction scheme of polar code. Performance simulations on each channel show that the polar code construction scheme proposed in this paper is feasible and effective under three channels. Compared with the low density parity check code(LDPC) with similar code length
the comprehensive performance of the polar code is better under the same signal-to-noise ratio(SNR). Relatively speaking
when the SNR of the polarization code is improved
its bit error rate curve drops faster
which means that it can obtain a higher coding gain. The simulation results improve the performance of the underwater acoustic communication system
and show a good application prospect in the complicated underwater acoustic channel.
关键词
Keywords
references
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