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 …

Intelligent reflecting surface (IRS) has emerged as a key enabling technology to realize
smart and reconfigurable radio environment for wireless communications, by digitally …

Optimally extracting the advantages available from reconfigurable intelligent surfaces (RISs)
in wireless communications systems requires estimation of the channels to and from the RIS …

Recent intensive and extensive development of the fifth-generation (5G) of cellular networks
has led to their deployment throughout much of the world. As part of this implementation …

Reconfigurable intelligent surface (RIS) is a promising device that can reconfigure the
electromagnetic propagation environment through adjustment of the phase shifts of its …

Next-generation cellular technologies, commonly referred to as the sixth generation (6G),
are envisioned to support a higher system capacity, better performance, and network …

This paper considers a reconfigurable intelligent surface (RIS)-aided millimeter wave
(mmWave) downlink communication system where hybrid analog-digital beamforming is …

With massive deployment, multiple-input–multiple-output (MIMO) systems continue to take
mobile communications to new heights, but the ever-increasing demands mean that there is …

This paper investigates and analyzes the number of reflecting elements for guaranteed
energy-and spectral-efficient intelligent reflecting surface (IRS)-assisted communication …

To solve the blockage effect in millimeter wave (mmWave) communication, intelligent
reflecting surface (IRS) is introduced to create additional links and enhance the system …