Performance analysis of dual-hop PLC-FSO communication system

Shenghai CHEN; Xiaoqin YAN; Sai LI; Liang YANG

doi:10.11959/j.issn.1000-436x.2021199

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Performance analysis of dual-hop PLC-FSO communication system

Correspondences | 更新时间：2024-06-05

- Performance analysis of dual-hop PLC-FSO communication system
- Journal on Communications Vol. 42, Issue 10, Pages: 243-250(2021)
- 作者机构：
  
  湖南大学信息科学与工程学院，湖南长沙 410082
- 作者简介：
- 基金信息：
  
  The Key Research and Development Program of Hunan Province(2022GK2051);The high-tech Industry Science and Technology Innovation Leading Program Project of Hunan Province(2022GK4004)
- DOI：10.11959/j.issn.1000-436x.2021199
  CLC： TN92
- Online First：2021-10，
  
  Published：25 October 2021
- 稿件说明：
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Shenghai CHEN, Xiaoqin YAN, Sai LI, et al. Performance analysis of dual-hop PLC-FSO communication system[J]. Journal on Communications, 2021, 42(10): 243-250.
DOI：

Shenghai CHEN, Xiaoqin YAN, Sai LI, et al. Performance analysis of dual-hop PLC-FSO communication system[J]. Journal on Communications, 2021, 42(10): 243-250. DOI： 10.11959/j.issn.1000-436x.2021199.

摘要

提出了一种混合双跳PLC-FSO通信系统。PLC链路和FSO链路通过放大转发中继连接。具体地，假设PLC 链路受附加背景噪声和脉冲噪声影响，其信道衰落服从对数正态分布，而 FSO 链路受大气湍流影响信道衰落满足Gamma-Gamma分布，并考虑指向误差影响。基于该模型，分别推导了中断概率、误码率和信道容量的闭式表达式来分析系统的性能。此外，给出了中断概率和误码率的渐近分析以及信道容量的上限表达式。最后，利用蒙特卡罗仿真验证了推导结果的准确性，结果表明系统中断概率随着指向误差参数的增大而减小；PLC链路脉冲噪声越小，误码率越低，系统整体性能越好；系统容量随着湍流强度的降低而增加。

Abstract

A dual-hop power line communication and free-space optical communication (PLC-FSO) system was proposed

where an amplify-and-forward (AF) relay was applied to help the signal transmission between the PLC link and the FSO link.More specifically

it was assumed that the PLC link was affected by both additive background noise and impulsive noise

and the channel fading followed log-normal distribution

while the fading induced by the atmospheric turbulence in the FSO link followed a Gamma-Gamma distribution

and the effect of pointing errors was also considered.Based on this model

closed-form expressions for the outage probability

bit error rate

and the channel capacity were derived.In addition

asymptotic analysis for the outage probability and BER

and upper bound expression for the channel capacity were presented.Finally

the accuracy of the analytical results was justified through Monte-Carlo simulations.The results show that the system outage probability decreases as the pointing error parameter increases and the smaller the PLC link impulse noise

the lower the bit error rate.The system capacity increases as the turbulence intensity decreases.

关键词

Keywords

references

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