The recent development of metasurfaces, which may enable several use cases by modifying
the propagation environment, is anticipated to substantially affect the performance of sixth …

In this manuscript, we present an energy-efficient alternating optimization framework based
on the multiantenna ambient backscatter communication (AmBSC)-assisted cooperative …

In this paper, a novel simultaneously transmitting and reflecting reconfigurable intelligent
surface (STAR-RIS) assisted non-orthogonal multiple access (NOMA) system is proposed …

Reconfigurable intelligent surface (RIS) is a revolutionary technology for achieving high rate
and large coverage in future wireless networks by smartly reflecting the signals with …

By activating blocked users and altering successive interference cancellation (SIC)
sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non …

Massive multiple-input multiple-output (MIMO) and non-orthogonal multiple access (NOMA)
are two key techniques for enabling massive connectivity in future wireless networks. A …

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

Passive tags must harvest sufficient energy to operate. However, ensuring the tag's energy
needs and simultaneously suppressing the interference in ambient backscatter systems is …

In this paper, we investigate the fundamental multiple access (MA) scheme in an active
intelligent reflecting surface (IRS) aided energy-constrained Internet-of-Things (IoT) system …

IRS is a new and revolutionizing technology that is able to significantly improve the
performance of wireless communication networks, by smartly reconfiguring the wireless …