Reconfigurable intelligent surfaces (RISs), consisting of many low-cost elements that reflect
the incident waves by an adjustable phase shift, have attracted sudden attention for their …

This paper investigates the uplink cascaded channel estimation for intelligent-reflecting-
surface (IRS)-assisted multi-user multiple-input-single-output systems. We focus on a sub-6 …

In this letter, we investigate the use of active elements in reconfigurable intelligent surfaces
(RIS) to overcome the double-fading problem introduced in the RIS-aided link in a wireless …

The aerial-terrestrial communication system constitutes an efficient paradigm for supporting
and complementing terrestrial communications. However, the benefits of such a system …

This paper aims to investigate the benefit of using intelligent reflecting surface (IRS) in multi-
user multiple-input single-output (MU-MISO) systems, in the presence of eavesdroppers. We …

Terahertz (THz) communications with a frequency band 0.1–10 THz are envisioned as a
promising solution to future high-speed wireless communication. Although with tens of …

Power-domain non-orthogonal multiple access (NOMA) has become a promising
technology to exploit the new dimension of the power domain to enhance the spectral …

In this work, we consider a hybrid aerial full-duplex (FD) relaying protocol consisting of a
reconfigurable intelligent surface (RIS) mounted over an FD unmanned aerial vehicle (UAV) …

This letter investigates the impact of spatial channel correlation on the outage probability of
intelligent reflecting surface (IRS)-assisted single-input single-output (SISO) communication …

This paper investigates the interference nulling capability of reconfigurable intelligent
surface (RIS) in a multiuser environment where multiple single-antenna transceivers …