As a revolutionary technology, reconfigurable intelligent surface (RIS) has been deemed as
an indispensable part of the 6th generation communications due to its inherent ability to …

This paper investigates the security performance of two relay selection schemes for
cooperative non-orthogonal multiple access (NOMA) systems, where K randomly distributed …

This article investigates the performance of reconfigurable intelligent surface assisted two-
way non-orthogonal multiple access (RIS-TW-NOMA) networks, where a pair of users …

In this study, the performance of a secondary network in cognitive radio (CR) is studied in
the context of vehicle-to-everything (V2X). The non-orthogonal multiple access (NOMA) is …

Non-orthogonal multiple access (NOMA) and cognitive radio (CR) are two promising
technologies that provide efficient spectrum utilization, which is required for future wireless …

Simultaneously transmitting/refracting and reflecting reconfigurable intelligent surface
(STAR-RIS) has been introduced to achieve full coverage area. This paper investigate the …

In this article, we consider an active reconfigurable intelligent surface (ARIS)-aided non-
orthogonal multiple access (NOMA) and rate-splitting (RS)-enabled communication system …

Cognitive radio (CR) and non-orthogonal multiple access (NOMA) are two promising
technologies in the next generation wireless communication systems. The security of a …

Active reconfigurable intelligent surface (ARIS) is a promising way to compensate for
multiplicative fading attenuation by amplifying and reflecting event signals to selected users …

In this article, we analyze the downlink transmission of a wirelessly powered hybrid
cooperative non-orthogonal multiple access (C-NOMA) system relying on reconfigurable …