Unmanned aerial vehicles (UAVs) serve as flexible aerial platforms, enriching air-ground
communication networks in various ways. To support massive connectivity within limited …

Combining intelligent reflecting surface (IRS) with an unmanned aerial vehicle to form aerial
IRS (AIRS) swarms is an effective way to enable panoramic full-angle reflection, high …

In this correspondence, we consider the intelligent reflecting surface (IRS) assisted
unmanned aerial vehicle (UAV) uplink transmission, where a UAV collects data from ground …

Recently, fixed-wing unmanned aerial vehicles (fixed-wing UAVs) are able to extend the
communications mission time and ease of deployment due to their powerful onboard …

In this paper, we investigate channel estimation in a reconfigurable intelligent surface (RIS)
assisted multi-user network while taking the mobility of users into consideration. Based on a …

In disaster-stricken areas, establishing reliable communication poses a significant
challenge. Unmanned aerial vehicles (UAVs) offer a promising solution by serving as aerial …

In the rapidly evolving field of wireless communications, the emergence of 5G and the
progression towards 6G technologies highlight the demands for innovative frameworks …

Abstract Reconfigurable Intelligent Surfaces (RISs) enable programmable wireless
environments and thus have great potential for enhancing physical layer security. However …

In this work, we resolve the cascaded channel estimation problem and the reflected channel
estimation problem for the reconfigurable intelligent surface (RIS)-assisted millimeter-wave …

Reconfigurable intelligent surface (RIS) technology has emerged as a promising solution to
enhance network coverage and spectral efficiency in mmWave communication systems …