Reconfigurable intelligent surfaces (RISs) represent a new technology that can shape the
radio wave propagation in wireless networks and offers a great variety of possible …

Reconfigurable intelligent surfaces (RIS) is a promising solution to build a programmable
wireless environment via steering the incident signal in fully customizable ways with …

We consider multi-antenna wireless systems aided by reconfigurable intelligent surfaces
(RIS). RIS presents a new physical layer technology for improving coverage and energy …

This paper deals with channel estimation in reconfigurable intelligent surface (RIS) aided
multiple-input multiple-output (MIMO) time-division duplexing systems. In a typical RIS …

We consider a fading channel in which a multiantenna transmitter communicates with a multi-
antenna receiver through a reconfigurable intelligent surface (RIS) that is made of N …

Reconfigurable intelligent surfaces (RISs) allow controlling the propagation environment in
wireless networks by tuning multiple reflecting elements. RISs have been traditionally …

Reconfigurable intelligent surfaces (RIS) have been actively researched as a potential
technique for future wireless communications, which intelligently ameliorate the signal …

Reconfigurable intelligent surfaces (RISs) are capable of enhancing the capacity of wireless
networks at a low cost. In practical RIS-assisted communication systems, the acquisition of …

Reconfigurable intelligent surface (RIS) becomes an increasingly important technology in
sixth-generation (6G). The key aspect of RIS is smartly configuring the wireless propagation …

In this paper, we investigate the performance of an RIS-aided wireless communication
system subject to outdated channel state information that may operate in both the near-and …