RIS-Assisted Full-Duplex Relaying Systems With Imperfect CSI and Hardware Impairments

In this work, we investigate the performance of a reconfigurable intelligent surface-assisted full-duplex relaying system with imperfect channel state information and hardware impairments. More specifically, we derive the analytical expressions for the outage probability, average bit error rate, and average capacity. To provide more insightful results, the corresponding asymptotic analysis is also performed. Finally, all the analytical results are verified by Monte Carlo simulations and a performance floor phenomenon is observed.