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

Reconfigurable intelligent surfaces (RISs) constitute the key enabler for programmable
electromagnetic propagation environments and are lately being considered as a candidate …

The adoption of a reconfigurable intelligent surface (RIS) for downlink multi-user
communication from a multi-antenna base station is investigated in this paper. We develop …

The multi-user Holographic Multiple-Input and Multiple-Output Surface (MU-HMIMOS)
paradigm, which is capable of realizing large continuous apertures with minimal power …

We consider a multi-user Multiple-Input Single-Output (MISO) communication system
comprising of a multiantenna base station communicating in the downlink simultaneously …

Owing to the explosive growth of requirements of rapid emergency communication response
and accurate observation services, airborne communication networks (ACNs) have received …

Stacked intelligent metasurfaces (SIM) represents an advanced signal processing paradigm
that enables over-the-air processing of electromagnetic waves at the speed of light. Its multi …

Thanks to their inherent advantages including large radio coverage and less dependence
on terrestrial infrastructures, space and aerial networks can play an important role in 5G for …

Stacked intelligent metasurfaces (SIMs) represent a novel signal processing paradigm that
enables over-the-air processing of electromagnetic waves at the speed of light. Their multi …

The cell-free MIMO concept relying on hybrid precoding constitutes an innovative technique
capable of dramatically increasing the network capacity of millimeter-wave (mmWave) …