Paper Info
Title
Performance Analysis of Dual-Hop RF/FSO Relaying Systems With Imperfect CSI
Abstract
This paper proposes a unified performance analysis framework of asymmetric dual-hop radio-frequency/free-space optical (RF/FSO) transmission systems. The generalized independent and identically distributed (i.i.d.) <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\alpha -\mu$</tex-math></inline-formula> distribution is considered for each branch in the RF link, whereas the FSO link is assumed to experience Málaga ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\mathcal {M}$</tex-math></inline-formula> ) fading with pointing error impairments. With amplify-and-forward (AF) and decode-and-forward (DF) relaying, the imperfect channel state information (CSI) of both links is considered. For the considered system, we first derive exact and novel analytical expressions for the probability density function (PDF) and cumulative distribution function (CDF) of the end-to-end signal-to-noise ratio (SNR). Furthermore, we obtain key performance metrics such as outage probability (OP), average bit-error-rate (ABER), and effective capacity (EC). The important effects of channel parameters on the system are disclosed from mathematical analysis and are further validated by Monte-Carlo simulations.
Year
DOI
Venue
2022
10.1109/TVT.2022.3149759
IEEE Transactions on Vehicular Technology
Keywords
DocType
Volume
α-μ distribution,free space optical communica- tion,imperfect CSI,Málaga ( $\mathcal {M}$ ) fading,performance analysis
Journal
71
Issue
ISSN
Citations 
5
0018-9545
2
PageRank 
References 
Authors
0.37
21
5
Name
Order
Citations
PageRank
Zihan Zhang120.37
Qiang Sun2327.01
Miguel López-Benítez331833.49
Xiaomin Chen420.37
Jiayi Zhang591174.44