Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding

Xiaoli YIN; Tong ZHENG; Zhiwen SUN; Zhaoyuan ZHANG

doi:10.11959/j.issn.1000-436X.2020253

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Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding

Papers | 更新时间：2024-06-05

- Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding
- Journal on Communications Vol. 41, Issue 12, Pages: 110-117(2020)
- 作者机构：
  
  北京邮电大学电子工程学院，北京 100876
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61575027);The National Natural Science Foundation of China(62071062);The Natural Science Founda-tion of Beijing Municipality(4192041)
- DOI：10.11959/j.issn.1000-436X.2020253
  CLC： TN929.12；O436
- Online First：2020-12，
  
  Published：25 December 2020
- 稿件说明：
移动端阅览
Xiaoli YIN, Tong ZHENG, Zhiwen SUN, et al. Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding[J]. Journal on Communications, 2020, 41(12): 110-117.
DOI：

Xiaoli YIN, Tong ZHENG, Zhiwen SUN, et al. Simulation of transmission characteristics of oceanic wireless optical communication systems based on orbital angular momentum multiplexing with space-time coding[J]. Journal on Communications, 2020, 41(12): 110-117. DOI： 10.11959/j.issn.1000-436X.2020253.

摘要

为了解决轨道角动量复用水下无线光通信系统中海洋湍流引起的信道串扰问题，对空时编码技术在该系统中的应用进行了研究。基于Rytov近似，利用协方差法和插值法产生了具有相关性的随机相位屏，模拟了时变的海洋湍流信道对轨道角动量信号的影响，仿真分析了采用空时编码的轨道角动量复用光通信系统传输特性、时变湍流屏的相位结构函数以及轨道角动量光束经时变仿真信道后的探测概率分布，仿真结果符合理论预期。仿真结果显示利用空时编码技术能够有效降低海洋湍流对系统误比特率的影响。

Abstract

In order to mitigate the crosstalk caused by oceanic turbulence in the underwater wireless orbital angular momentum multiplexing optical communication system

the application of space-time coding technology in the system was studied.Based on Rytov approximation

the covariance method and interpolation method were used to simulate correlated random phase screens and then the influence of time-varying oceanic turbulence channel on orbital angular momentum signal was studied.The transmission characteristics of orbital angular momentum multiplexing optical communication system with space-time coding was analyzed by simulation.The phase structure function of the time-varying phase screens and the detection probability distribution of the beam carrying the orbital angular momentum through the time-varying simulation channel were in line with theoretical expectations.The simulation results show that the space-time coding technology can effectively mitigate the influence of ocean turbulence on the system bit error rate.

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references

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