Different from traditional reflection-only reconfigurable intelligent surfaces (RISs),
simultaneously transmitting and reflecting RISs (STAR-RISs) represent a novel technology …

This paper considers a two-user downlink transmission in reconfigurable intelligent surface
(RIS)-aided network over fading channels. Particularly, by employing user grouping and …

The combination of nonorthogonal multiple access (NOMA) using power-domain with
backscatter communication (BC) is expected to connect large-scale Internet of things (IoT) …

Reconfigurable intelligent surfaces (RISs) and nonorthogonal multiple access (NOMA) have
been recognized as key enabling techniques for the envisioned sixth generation (6G) of …

A simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs)
enhanced uplink non-orthogonal multiple access (NOMA) communication system is …

The heterogenous wireless services and exponentially growing traffic call for novel spectrum-
and energy-efficient wireless communication technologies. Recently, a new technique …

Reconfigurable intelligent surfaces (RISs) have emerged as a revolutionary technology for
controlling wireless channels to improve the performance of wireless communication and …

Non-orthogonal multiple access (NOMA) is envisioned as a key technology to enhance the
spectrum efficiency for 5G cellular networks. Meanwhile, ambient backscatter …

Reconfigurable intelligent surface (RIS) is a promising technology for establishing spectral-
and energy-efficient wireless networks. In this paper, we study RIS-enhanced orthogonal …

Nonorthogonal multiple access (NOMA) and symbiotic ambient backscatter communications
(AmBCs) are both considered promising technologies for beyond 5G mobile communication …