Reconfigurable intelligent surfaces (RIS) are capable of beneficially ameliorating the
propagation environment by appropriately controlling the passive reflecting elements. To …

In this paper, we investigate a practical structure of reconfigurable intelligent surface (RIS)-
based double spatial scattering modulation (DSSM) for millimeter-wave (mmWave) multiple …

Deploying active reflecting elements at the intelligent reflecting surface (IRS) increases
signal amplification capability but incurs higher power consumption. Therefore, it remains a …

In this paper, we consider an active reconfigurable intelligent surface (RIS) to assist the
multiuser downlink transmission in the presence of practical hardware impairments (HWIs) …

This paper puts forth a new, reconfigurable intelligent surface (RIS)-assisted, uplink, user-
centric cell-free (UCCF) system managed with the assistance of a digital twin (DT) …

The promising gains of reconfigurable intelligent surface (RIS)-assisted multiple-input
multiple-output (MIMO) systems, in terms of extended coverage and enhanced capacity, are …

In this work, we investigate the effect of phase noise in downlink simultaneously transmitting
and reflecting reconfigurable intelligent surface (STAR-RIS)-aided massive multiple-input …

In this paper, to tackle the blockage issue in massive multiple-input-multiple-output (mMIMO)
systems, a reconfigurable intelligent surface (RIS) is seamlessly deployed to support …

Due to the possibility of blockage during communication, the communication quality may be
poor. Therefore, Reconfigurable Intelligent Surface (RIS) technology can effectively solve …

Reconfigurable holographic surfaces (RHSs) constitute a promising technique of supporting
energy-efficient communications. In this paper, we formulate the energy efficiency …