Performance Analysis of the Reconfigurable Intelligent Surfaces Communication Systems

Reconfigurable intelligent surfaces (RIS) play a vital role in meeting the growing demand for higher data rates and reliability in wireless systems. This study focuses on analyzing the performance of RIS systems to gain a deeper understanding of their potential. The paper presents a mathematical analysis of the RIS system, deriving closed-form formulae that express its characteristics including signal-to-noise ratio (SNR) distribution, ergodic and effective capacity, outage, and error probability. The obtained formulae are newly derived and unconditionally valid solutions. Numerical results demonstrate a close agreement between the derived formulae and MonteCarlo simulation outcomes.