Performance Analysis of Dual-Hop RF/FSO Relaying Systems With Imperfect CSI

Zhang, Zihan, Sun, Qiang, Lopez-Benitez, Miguel ORCID: 0000-0003-0526-6687, Chen, Xiaomin and Zhang, Jiayi (2022) Performance Analysis of Dual-Hop RF/FSO Relaying Systems With Imperfect CSI. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 71 (5). pp. 4965-4976.

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Official URL: http://dx.doi.org/10.1109/tvt.2022.3149759

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.) α-μ distribution is considered for each branch in the RF link, whereas the FSO link is assumed to experience Málaga (M) 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.

Item Type:	Article
Uncontrolled Keywords:	alpha-mu distribution, free space optical communication, imperfect CSI, Malaga (M) fading, performance analysis
Divisions:	Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User:	Symplectic Admin
Date Deposited:	31 Jan 2022 10:38
Last Modified:	15 Mar 2024 22:52
DOI:	10.1109/TVT.2022.3149759
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3147879