We study secure communications with an untrusted relay for a cooperative non-orthogonal
multiple access (NOMA) system, where a base station (BS) serves a near user (NU) and a …

This paper investigates the secrecy outage performance of a downlink cooperative
nonorthogonal multiple access‐(NOMA‐) assisted hybrid satellite‐terrestrial network, where …

Cooperative non-orthogonal multiple access (NOMA) system employs user relaying to
enhance performance. Although full-duplex (FD) user relaying scheme does not incur …

In this paper, we propose a security-aware spectrum sharing scheme for wireless-powered
cognitive radio networks (CRNs) with non-orthogonal multiple access (NOMA). In this …

This paper proposes a self-energy recycling full-duplex cooperative non-orthogonal multiple
access (SRF-NOMA) system, where a nearby user can be employed as a decode-and …

A key feature of the non-orthogonal multiple access (NOMA) technique is that users with
better channel conditions have prior information about the messages of other users. The …

In this study, secrecy performance for unmanned aerial vehicle (UAV) relaying multi-antenna
satellite-terrestrial simultaneous wireless information and power transfer systems with non …

In this study, the wireless sensor network is investigated in scenario of untrusted relay
required to user at far distance. In particular, an untrusted relay assists long distance …

In this paper, we investigate the reliability and security of cooperative dual-hop non-
orthogonal multiple access (NOMA) for internet-of-thing (IoT) networks, in which the …

The massive connectivity requirement and security issues have become major factors
restricting the further development of the Internet of Things. Nonorthogonal multiple access …