Performance Analysis of RIS-aided Communication Systems over the Sum of Cascaded Rician Fading with imperfect CSI
Tingnan Bao, Haiming Wang, Hong‐Chuan Yang, Wenjing Wang, Mazen O. Hasna
Abstract
In this work, we study the performance of reconfigurable intelligent surface (RIS)-aided communication systems over the sum of cascaded Rician fading channels. To facilitate the performance analysis of the practical scenario, we consider the case that imperfect channel state information (CSI) is available at the RIS. We derive the closed-form expressions of several performance metrics in terms of the exact outage probability, ergodic capacity and average bit error rate (BER). Through analytical and numerical results, we examine the effect of the number of reflecting elements at the RIS and different system parameters on the overall system performance.
Topics & Concepts
Rician fadingErgodic theoryFadingImperfectComputer scienceCommunications systemChannel state informationChannel (broadcasting)Outage probabilityBit error rateAlgorithmTelecommunicationsElectronic engineeringMathematicsWirelessEngineeringMathematical analysisPhilosophyLinguisticsAdvanced Wireless Communication TechnologiesOcular Disorders and TreatmentsSatellite Communication Systems