In the past as well as present wireless communication systems, the wireless propagation
environment is regarded as an uncontrollable black box that impairs the received signal …

The recent development of metasurfaces, which may enable several use cases by modifying
the propagation environment, is anticipated to substantially affect the performance of sixth …

As a revolutionary paradigm for controlling wireless channels, reconfigurable intelligent
surfaces (RISs) have emerged as a candidate technology for future 6G networks. However …

This letter theoretically compares the active reconfigurable intelligent surface (RIS)-aided
system with the passive RIS-aided system. For a fair comparison, we consider that these two …

In this paper, intelligent reflecting surfaces (IRSs) are employed to enhance the physical
layer security in a challenging radio environment. In particular, a multi-antenna access point …

A novel framework is proposed for integrating reconfigurable intelligent surfaces (RIS) in
unmanned aerial vehicle (UAV) enabled wireless networks, where an RIS is deployed for …

We propose a holographic version of a reconfigurable intelligent surface (RIS) and
investigate its application to terahertz (THz) massive multiple-input multiple-output systems …

A reconfigurable intelligent surface (RIS) can shape the radio propagation environment by
virtue of changing the impinging electromagnetic waves towards any desired directions …

Reconfigurable intelligent surfaces (RISs) provide an interface between the electromagnetic
world of wireless propagation environments and the digital world of information science …

This paper considers a scenario where a reconfigurable intelligent surface (RIS) is deployed
to allow the localization of mobile users adopting a single anchor node, even under non-line …