Reconfigurable intelligent surface (RIS) can be employed in a cell-free system to create
favorable propagation conditions from base stations (BSs) to users via configurable …

Cell-free networks are regarded as a promising technology to meet higher rate requirements
for beyond fifth-generation (5G) communications. Most works on cell-free networks focus on …

Reconfigurable intelligent surface (RIS) is a revolutionary technology for sixth-generation
(6G) networks owing to its ability to manipulate wireless environments. As a frequency …

Reconfigurable intelligent surfaces (RIS) can be crucial in next-generation communication
systems. However, designing the RIS phases according to the instantaneous channel state …

Reconfigurable intelligent surface (RIS) is a revolutionary technology that can customize the
wireless channel and improve the energy efficiency of next-generation cellular networks …

Cell-free systems can effectively eliminate the inter-cell interference by enabling multiple
base stations (BSs) to cooperatively serve users without cell boundaries at the expense of …

In this letter, we investigate a cell-free network aided by hybrid reconfigurable intelligent
surfaces (RISs), which consists of a mixture of passive and active elements that are capable …

Beyond-diagonal reconfigurable intelligent surface (BD-RIS) has been proposed recently as
a novel and generalized RIS architecture that offers enhanced wave manipulation flexibility …

Active reconfigurable intelligent surfaces (RISs) have recently been proposed to
compensate for the severe multiplicative fading effect of conventional passive RIS-aided …

Reconfigurable intelligent surfaces (RIS) is a promising solution to build a programmable
wireless environment via steering the incident signal in fully customizable ways with …