Over the last few years, interference has been a major hurdle for successfully implementing
various end-user applications in the fifth-generation (5G) of wireless networks. During this …

Abstract Power Domain Non-Orthogonal Multiple Access (PD-NOMA) is a potential
technology for the next generation of cellular networks. Compared to classical orthogonal …

Nonorthogonal multiple access (NOMA) assisted semi-grant-free transmission admits grant-
free users to access the channels otherwise solely occupied by grant-based users, and has …

This paper proposes a novel network framework of intelligent reflecting surface (IRS)-
assisted simultaneous wireless information and power transfer (SWIPT) non-orthogonal …

We investigate the secrecy transmission of uplink non-orthogonal multiple access (NOMA)
with the aid of energy harvesting (EH) jammers. During each time frame, communication is …

The integration of intelligent reflecting surface (IRS) and multiple access provides a
promising solution to improved coverage and massive connections at low cost. However …

With 5G mobile communication systems having been commercially rolled out, research
discussions on next generation mobile systems, that is, 6G, have started. On the other hand …

This letter considers covert communication in downlink NOMA systems, where a public
action (communication from Alice to the NOMA-weak user U1) is used to provide a cover for …

This paper investigates the secrecy outage performance for a large-scale downlink system
with full-duplex (FD) non-orthogonal multiple access (NOMA) transmission aided by artificial …

We investigate a secrecy-enhancing design for cooperative downlink and uplink non-
orthogonal multiple access (NOMA) transmissions with an untrusted relay. A source uses the …