In this letter, we propose a next-generation reconfigurable intelligent surface (RIS)
architecture, termed multi-functional RIS (MF-RIS), which enables signal reflection, refraction …

Rate-splitting multiple access (RSMA) and reconfigurable intelligent surface (RIS)
techniques show promise in enhancing spectral efficiency in sixth-generation Internet of …

Next-generation wireless applications are expected to enable extended ultra-reliable low
latency communication (URLLC) to support high data rates along with ultra-high reliability …

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 …

In the intelligent reflecting surface (IRS) assisted communication systems, the acquisition of
channel state information (CSI) is a crucial impediment for achieving the passive …

Reconfigurable surfaces (RS) have recently emerged as an enabler for smart radio
environments where they are used to actively tailor/control the radio propagation (eg, to …

Due to the benefits of the spectrum and energy efficiency, intelligent reflecting surfaces
(IRSs) are regarded as a promising technology for future networks. In this work, we consider …

In this letter, two state-of-the-art Artificial Neural Networks (ANN)-based models are
proposed for multiple Reconfigurable Intelligent Surfaces (RISs)-assisted wireless …

In reconfigurable intelligent surface (RIS)-assisted systems the acquisition of channel state
information and the optimization of reflecting coefficients constitute major design challenges …

From adapting to the propagation environment to reconstructing the propagation
environment, reconfigurable intelligent surface (RIS) changes the design paradigm of …