An intelligent reflecting surface (IRS) is a programmable device that can be used to control
electromagnetic waves propagation by changing the electric and magnetic properties of its …

Millimeter wave (mmWave) and terahertz (THz) radio access technologies (RAT) are
expected to become a critical part of the future cellular ecosystem providing an abundant …

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

In this paper, a three-dimensional (3D) geometry-based stochastic model (GBSM)
empowered by reconfigurable intelligent surface (RIS) is presented for multiple-input …

The slime mould algorithm (SMA) is a new meta-heuristic algorithm recently proposed. The
algorithm is inspired by the foraging behavior of polycephalus slime moulds. It simulates the …

As communication systems that employ millimeter wave (mmWave) frequency bands must
use large antenna arrays to overcome the severe propagation loss of mmWave signals …

This letter studies the physical-layer security (PLS) improvement in wireless communication
systems, where a hybrid reconfigurable intelligent surfaces (RISs) is deployed between the …

Intelligent reflecting surface (IRS) has emerged as a promising technique to control wireless
propagation environment for enhancing the communication performance cost-effectively …

Combining energy harvesting (EH) and device-to-device (D2D) communication underlaying
5G cellular networks is a very promising direction to improve both energy and spectral …

The emerging intelligent reflecting surface (IRS) can significantly improve the system
capacity, and it has been regarded as a promising technology for the beyond fifth-generation …