This paper analyzes the performance of an uplink/downlink reconfigurable intelligent
surface (RIS)-based wireless system with a multiple-antenna base station (B), where the RIS …

Reconfigurable intelligent surfaces (RIS) have been presented as a solution to realize the
concept of smart radio environments, wherein uninterrupted coverage and extremely high …

Reconfigurable intelligent surface (RIS) is capable of improving the wireless system
performance by steering the reflected signal in the desired direction. One of the major …

Reconfigurable intelligent surfaces (RIS) constitute a promising technology for future
wireless communications in terms of improving the spectral-efficiency and energy-efficiency …

Reconfigurable intelligent surfaces (RIS) is a new technology that aims to improve the
spectral and energy efficiency for next-generation wireless technology (6G). It has recently …

When beamforming is applied at the transmitter, only part of reconfigurable intelligent
surfaces (RISs) might be active, and it becomes indispensable to study the impact of RIS …

Reconfigurable intelligent surface (RIS) is an emerging technology to improve the spectral
efficiency of wireless communication systems. However, the increase of RIS elements …

This letter consider a reconfigurable intelligent surface (RIS) aided multi-user multiple-input
single-output (MISO) downlink system, where transmit beamforming and phase shifts of RIS …

In the present work, we investigate the impact of transceiver hardware imperfection on
reconfigurable intelligent surface (RIS)-assisted wireless systems. In this direction, first, we …

Reconfigurable intelligent surface (RIS) technology has recently gained a lot of attention
since it promises to enhance the spectral and energy efficiency of future wireless …