• Laser & Optoelectronics Progress
  • Vol. 58, Issue 17, 1706005 (2021)
Yan Wu1、2、3、4, Haiping Mei1、3, Congming Dai1、3, Fengmei Zhao1、2、3, and Heli Wei1、2、3、*
Author Affiliations
  • 1Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei , Anhui 230031, China
  • 2Science Island Branch of Graduate School, University of Science and Technology of China, Hefei , Anhui 230026, China
  • 3Advanced Laser Technology Laboratory of Anhui Province, Hefei , Anhui 230037, China
  • 4School of Electronic Engineering, Huainan Normal University, Huainan , Anhui 232038, China
  • show less
    DOI: 10.3788/LOP202158.1706005 Cite this Article Set citation alerts
    Yan Wu, Haiping Mei, Congming Dai, Fengmei Zhao, Heli Wei. Performance Analysis of Hybrid Free Space Optical/Radio Frequency Communication System[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1706005 Copy Citation Text show less

    Abstract

    Under the conditions of exponentiated Weibull turbulent channel and Nakagami-m fading channel, the performance of hybrid free space optical/radio frequency (FSO/RF) communication system based on the selective combination technology is studied in this paper. Considering the pointing errors, this paper deduces the average bit error rate and outage probability of the selective combination hybrid FSO/RF communication system which adopts subcarrier modulation and intensity modulation/direct detection scheme, and obtains their new expressions by Meijer-G function and extended generalized bivariate Meijer-G function. The bit error rate and outage probability performance of hybrid FSO/RF communication system and FSO system are investigated under different subcarrier modulation schemes, turbulence intensity, pointing errors and RF channel fading parameter m. The simulation results show that the performance of the hybrid FSO/RF communication system using coherent binary phase shift keying subcarrier modulation technology is significantly better than the other three modulation technologies, and the performance of hybrid FSO/RF communication system is better than that of FSO system.
    yFSO=PFSOηFSOR[1+ξm(t)]hFSO+n0FSO
    γFSO=(PFSOηFSORξ)2σnFSO,2(hFSO)2=γ¯FSO(hFSO)2
    fγFSOγFSO=12γFSOγ¯FSOαρ2ηA0ρ2γFSOγ¯FSOρ2-1·t=0BtG1,22,0CtγFSOγ¯FSOβ10,1-ρ2β
    FγFSOγFSO=AγFSOγ¯FSOρ2t=0BtG2,32,1CtγFSOγ¯FSOβκ1κ2
    yRF=PRFηRFhRFm(t)+n0RF
    ηRF=Gt+Gr-20log104πLλRF-LαoxgRF+αrainRF
    γRF=PRFηRF(hRF)2σn2=γ¯RFhRF2
    fγRF(γRF)=mγ¯RFmγm-1Γ(m)exp-mγRFγ¯RF=mγ¯RFmγm-1Γ(m)G0,11,0mγRFγ¯RF-0
    FγRF(γRF)=1Γ(m)G1,21,1mγRFγ¯RF1m,0
    γSC=max(γFSO,γRF)
    FγSC(γ)=Pr[max(γFSO,γRF)γ]=Pr(γFSOγ,γRFγ)=FγFSO(γ)FγRF(γ)
    FγSC(γ)=AΓ(m)γγ¯FSOρ22t=0BtG1,21,1mγγ¯RF1m,0G2,32,1Ctγγ¯FSOβ2κ1κ2
    FγSC(γ)=AΓ(m)γγ¯FSOρ22t=0BtG0,0;1,2;2,30,0;1,1;2,1--1m,0κ1κ2mγγ¯RF,Ctγγ¯FSOβ2
    Pb=qp2Γ(p)0(γ)p-1exp(-qγ)FγSC(γ)dγ
    Pbmulti=Aqp2Γ(p)Γ(m)γ¯FSO-ρ2/2t=0Bt0(γ)(ρ2/2)+p-1exp(-qγ)G0,0;1,2;2,30,0;1,1;2,1--1m,0κ1κ2mγγ¯RF,Ctγγ¯FSOβ2dγ
    Pb=Aqp2Γ(p)Γ(m)γ¯FSO-ρ2/2t=0Btτ=1nwτG0,0;1,2;2,30,0;1,1;2,1--1m,0κ1κ2mxτγ¯RF,Ctxτγ¯FSOβ2
    Pout=Pr(γSC<γth)=0γthfγSC(γ)dγ=FγSC(γth)
    Pout=AΓ(m)γthγ¯FSOρ22t=0BtG0,0;1,2;2,30,0;1,1;2,1--1m,0κ1κ2mγthγ¯RF,Ctγthγ¯FSOβ2
    Yan Wu, Haiping Mei, Congming Dai, Fengmei Zhao, Heli Wei. Performance Analysis of Hybrid Free Space Optical/Radio Frequency Communication System[J]. Laser & Optoelectronics Progress, 2021, 58(17): 1706005
    Download Citation