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 commercial fifth-generation (5G) wireless communications networks have already been
deployed with the aim of providing high data rates. However, the rapid growth in the number …

Future wireless systems are envisioned to create an endogenously holography-capable,
intelligent, and programmable radio propagation environment, that will offer unprecedented …

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 …

Reconfigurable intelligent surfaces (RISs) or intelligent reflecting surfaces (IRSs) are
regarded as one of the most promising and revolutionizing techniques for enhancing the …

Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal
propagation in wireless networks. By smartly tuning the signal reflection via a large number …

Reconfigurable intelligent surfaces (RISs), also known as intelligent reflecting surfaces
(IRSs), or large intelligent surfaces (LISs), 1 have received significant attention for their …

Reconfigurable intelligent surfaces (RISs) are an emerging transmission technology for
application to wireless communications. RISs can be realized in different ways, which …

Reconfigurable intelligent surface (RIS) is a promising technology for 6 G networks owing to
its superior ability to enhance the capacity and coverage of wireless communications by …

Reconfigurable intelligent surfaces (RISs) comprised of tunable unit cells have recently
drawn significant attention due to their superior capability in manipulating electromagnetic …