Abstract
In this paper, an intelligent reflecting surface (IRS), which consists of L reflecting elements (REs), is utilized to improve the coverage and reliability of half-duplex relaying (HDR) and full-duplex relaying (FDR) wireless communication systems. We provide a rigorous analysis on the system performance, which is represented by the exact form expressions of outage probability (OP), symbol error probability (SEP), and ergodic capacity (EC), of the HDR-IRS and FDR-IRS systems over Rayleigh fading channels. All derived expressions are validated by Monte-Carlo simulations. It is shown that IRS can significantly improve the performance of HDR and especially FDR networks, in which IRS can suppress the impact of the loopback interference at the relay.
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