湍流信道下中继辅助非共面紫外散射通信性能分析

量子电子学报 ›› 2020, Vol. 37 ›› Issue (1): 83-87.

湍流信道下中继辅助非共面紫外散射通信性能分析

牟卫峰，蒲涛，郑吉林

陆军工程大学通信工程学院，江苏南京 210007

收稿日期:2019-09-09 修回日期:2019-10-17 出版日期:2020-01-28 发布日期:2020-01-28
通讯作者: 蒲涛 E-mail:nj_putao@163.com
作者简介:牟卫峰（1991），女，山东招远人，博士生，主要从事无线光通信、物理层安全方面的研究。 Email: weifengmou@126.com
基金资助:
Supported by the National Natural Science Foundation of China for the Youth (国家自然科学基金青年基金， 61504170， 61504058)， the National Natural Science Foundation of China (国家自然科学基金，61475193)

Performance Analysis of Relay-Assisted Noncoplanar Ultraviolet Scattering Communication Over Turbulent Channels

MOU Weifeng, PU Tao, ZHENG Jilin

College of Communication Engineering Army Engineering University of PLA, Nanjing 210007, China

Received:2019-09-09 Revised:2019-10-17 Published:2020-01-28 Online:2020-01-28

摘要/Abstract

摘要： 摘要：紫外光通信由于其散射特性能够适应复杂的工作环境。但是，大气吸收、散射及湍流同时也造成了信号强度的快速衰减落，从而极大地限制了传输距离。协同中继是克服这一缺点、扩大通信范围的有效手段。本文考虑大气湍流条件下非共面中继辅助紫外散射系统，推导得到了译码转发和放大转发两种协议下中断概率的闭式表达式。通过蒙特卡洛仿真，验证了理论分析结果的正确性。仿真结果表明：译码转发的中断性能优于放大转发，光发送功率越大、接收仰角越小、偏轴角越小，系统的中断性能越好。偏轴角不同，中断概率随发送仰角的变化规律不同。

关键词: 大气湍流, 光散射通信, 中断概率, 译码转发, 放大转发

Abstract: Abstract: Due to scattering characteristics, ultraviolet communication can adapt to complex working environment. However, atmospheric absorption, scattering and turbulence also result in rapid attenuation of signal intensity, which greatly limits the transmission distance. Cooperative relay is an effective method to overcome this shortcoming and expand the communication range. Considering the non-coplanar relay assisted ultraviolet scattering system in atmospheric turbulence, the closed-form expressions of outage probability under decoding-forwarding (DF) and amplifying-forwarding (AF) protocols are derived. Monte Carlo simulation verifies the correctness of the theoretical analysis results. The simulation results show that the outage performance of DF is better than that of AF. The higher the optical transmission power, the smaller the receiving elevation and the smaller the offset angle, the better the outage performance of the system. The change rule of outage probability with transmission elevation is different when the offset angle is different.

Key words: atmospheric turbulence, optical scattering communication, outage probability, decode-and-forward, amplify and forward

中图分类号:

TN929.12

牟卫峰蒲涛郑吉林. 湍流信道下中继辅助非共面紫外散射通信性能分析[J]. 量子电子学报, 2020, 37(1): 83-87.

MOU Weifeng, PU Tao, ZHENG Jilin. Performance Analysis of Relay-Assisted Noncoplanar Ultraviolet Scattering Communication Over Turbulent Channels[J]. Chinese Journal of Quantum Electronics, 2020, 37(1): 83-87.

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