Reconfigurable intelligent surfaces (RIS) is a new technology that aims to improve the
spectral and energy efficiency for next-generation wireless technology (6G). It has recently …

In the realm of wireless communications in 5G, 6G and beyond, deploying unmanned aerial
vehicle (UAV) has been an innovative approach to extend the coverage area due to its easy …

Reconfigurable intelligent surface (RIS) offers tremendous spectrum-and-energy efficiency
in wireless networks. With the agility and mobility of an unmanned aerial vehicle (UAV), RIS …

In this paper, we study the transmission strategy of a ground-based beyond diagonal
reconfigurable intelligent surface (BD-RIS), aka RIS 2.0, in a network where multiple …

Reconfigurable Intelligent Surface (RIS) has become an emerging technology in wireless
communication system. In this paper, we consider a RISs-assisted system where two RISs …

Reconfigurable intelligent surfaces (RIS) have emerged as one of the promising systems for
energy efficiency in wireless communications in recent years. In this study, the downlink …

A reconfigurable intelligent surface (RIS) is a new and revolutionizing technology to achieve
spectrum-efficient (SE) and energy-efficient (EE) wireless networks. In this paper, we study …

Reconfigurable intelligent surface (RIS) is an emerging technology to improve the spectral
efficiency of wireless communication systems. However, the increase of RIS elements …

This paper analyzes the performance of an uplink/downlink reconfigurable intelligent
surface (RIS)-based wireless system with a multiple-antenna base station (B), where the RIS …

Beyond diagonal reconfigurable intelligent surface (BD-RIS) is a novel branch of RIS which
breaks through the limitation of conventional RIS with diagonal scattering matrices …