混合双跳PLC-FSO通信系统的性能分析

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

Abstract

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.

Key words: bit error rate, outage probability, channel capacity, power line communication and free-space optical commu-nication system

CLC Number:

TN92

Shenghai CHEN, Xiaoqin YAN, Sai LI, Liang YANG. Performance analysis of dual-hop PLC-FSO communication system[J]. Journal on Communications, 2021, 42(10): 243-250.

Figures/Tables 7

References 34

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参数	值
P_i	0.05, 0.14, 0.32
m₁	8
m₂	8
η	15
C	1.2
G	3

参数	值
σ_SR	0.23
h_l	1
σ_s	0.3
a	2.5
w	2.7
γ_th	0

Performance analysis of dual-hop PLC-FSO communication system

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