Performance Analysis of RIS-Assisted Mixed Dual-Hop FSO-RF Communication Systems over Exponentiated Weibull Channels | Zendy

Xinzhong Liu | Zendy; Jian Zou | Zendy; Wenwu Xie | Zendy; Xin Peng | Zendy; Chunlai Li | Zendy

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Performance Analysis of RIS-Assisted Mixed Dual-Hop FSO-RF Communication Systems over Exponentiated Weibull Channels

Author(s) -

Xinzhong Liu,

Jian Zou,

Wenwu Xie,

Xin Peng,

Chunlai Li

Publication year - 2021

Publication title -

security and communication networks

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.446

H-Index - 43

eISSN - 1939-0114

pISSN - 1939-0122

DOI - 10.1155/2021/9273373

Subject(s) - weibull fading , weibull distribution , probability density function , cumulative distribution function , computer science , rayleigh fading , fading , rayleigh distribution , bit error rate , channel (broadcasting) , free space optical communication , rayleigh scattering , gamma distribution , communications system , monte carlo method , attenuation , electronic engineering , telecommunications , statistics , optical communication , mathematics , physics , optics , engineering

Information security is the basis of economic development, information construction, and the protection of people’s and national interest. In this paper, the performance of reconfigurable intelligent surface (RIS)-assisted mixed dual-hop free-space optical-radio frequency (FSO-RF) communication systems is studied and analyzed to ensure the safe transmission of information. In this scheme, it is assumed that the atmospheric turbulence in the fading of the FSO channel follows the exponentiated Weibull distribution model and the fading of the RF channel follows the Rayleigh distribution model. Based on the mathematical function, the probability density function and cumulative distribution function of RIS-assisted mixed dual-hop FSO-RF communication systems are derived. Then, the expression of outage probability and the bit error rate of the system are derived from the channel statistics. Finally, the analysis results are verified by Monte Carlo simulation, and the effects of different parameters on the system performance are analyzed. The simulation results show that the atmospheric turbulence parameters, channel distance of FSO, intensity of atmospheric turbulence, and number of reflectors all affect the system performance.

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