In this thesis, we explore the utilization of Reconfigurable Intelligent Surfaces (RIS) in
wireless communication systems. A RIS comprises of a grid of reflective elements which are …

Different from the traditional terrestrial intelligent reflecting surface (IRS), aerial IRS (AIRS)
can provide some unique advantages, such as flexible deployment and wider-view signal …

Intelligent reflecting surfaces (IRSs) have the potential to transform wireless communication
channels into smart reconfigurable propagation environments. To realize this new paradigm …

In this letter, a three-dimensional (3D) geometry-based stochastic multiple-input multiple-
output (MIMO) channel model for intelligent reflecting surface (IRS)-assisted unmanned …

Non-terrestrial networks, including Unmanned Aerial Vehicles (UAVs), High Altitude
Platform Station (HAPS) nodes and Low Earth Orbiting (LEO) satellites, are expected to …

Reconfigurable intelligent surface (RIS) is an enabling technology to engineer the radio
signal propagation in wireless networks. By smartly tuning the signal reflection via a large …

Reconfigurable intelligent surface (RIS) as an essential topic in the sixth-generation (6G)
communications aims to enhance communication performance or mitigate undesired …

A novel air-to-ground communication paradigm is conceived, where an unmanned aerial
vehicle (UAV)-mounted base station (BS) equipped with multiple antennas sends …

Recently, reconfigurable intelligent surface (RIS) has drawn much attention due to its
capability of improving coverage and communication performance. The development of RIS …

A simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)
aided communication system is investigated, where an access point sends information to …