Intelligent surfaces (ISs) have emerged as a key technology to empower a wide range of
appealing applications for wireless networks, due to their low cost, high energy efficiency …

Intelligent surfaces (ISs) have emerged as a key technology to empower a wide range of
appealing applications for wireless networks, due to their low cost, high energy efficiency …

This work addresses the topic of energy efficiency (EE) maximization in wireless networks
aided by a reconfigurable intelligent surface (RIS), considering both active and nearly …

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

To meet the unprecedented mobile traffic demands of future wireless networks, a paradigm
shift from conventional cellular networks to distributed communication systems is imperative …

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 …

We consider unmanned aerial vehicle (UAV)-enabled wireless systems where downlink
communications between a multi-antenna UAV and multiple users are assisted by a hybrid …

In this letter, we propose an unmanned aerial vehicle (UAV)-carried active reconfigurable
intelligent surface (RIS)-assisted cooperative network (UARCN) with a source (S), a …

Reconfigurable intelligent surfaces (RISs) are programmable metasurface structures that
can control the propagation of electromagnetic waves by changing the electrical and …

We consider a multi-user multiple-input single-output (MISO) communications system which
is assisted by a hybrid active-passive reconfigurable intelligent surface (RIS). Unlike …