西安电子科技大学学报（自然科学版）2024，Vol.51Issue(2)：116-125,10.DOI:10.19665/j.issn1001-2400.20230505
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
摘要
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Key words
underwater acoustic communication/OFDM/polar codes/Monte Carlo construction分类
信息技术与安全科学引用本文复制引用
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（自然科学版）,2024,51(2):116-125,10.基金项目
国家自然科学基金(61372072) （61372072）
111工程基金(B08038) （B08038）
