Large Intelligent Surfaces With Discrete Set of Phase-Shifts Communicating Through Double-Rayleigh Fading Channels

Despite many studies already published on large intelligent surfaces (LIS), there are still some gaps in mathematical models the face of possible scenarios. In this work, we evaluate performance a single-input single-output (SISO) system which an LIS acts as controllable scatterer. We consider that direct link between transmitting and receiving devices is non-existent due to blockage. Quantization phase errors at considered since high precision configuration reflection phases not always feasible. derive exact closed-form expressions for spectral efficiencies, outage probabilities, average symbol error rate (SER) different modulations schemes. assume more comprehensive scenario b bits dedicated adjustment LIS' elements. Based Monte Carlo simulations, prove excellent accuracy our approach investigate behavior power scaling law required reach specific capacity, depending number reflecting show with approximately fifty elements four quantization outperforms conventional without LIS.