In this paper, secure primary transmission is proposed by using a multi-antenna secondary
full-duplex non-orthogonal multiple access (NOMA) relay in cognitive radio (CR) networks …

This letter studies the secure transmission issue of non-orthogonal multiple access (NOMA)
based cognitive radio networks (CRNs) with imperfect channel state information (CSI) …

Non-orthogonal multiple access (NOMA) is an important technology for the forthcoming 5 G
and beyond. However, its privacy often suffers from adversarial eavesdropping, especially …

In this paper, we investigate an artificial-noise (AN) aided secure transmission for non-
orthogonal multiple access (NOMA) full-duplex (FD) relay network. We propose a novel joint …

Full-duplex (FD) relay systems including a transmit antenna selection and a non-orthogonal
multiple access (NOMA) methods are analyzed under presence of multiple eavesdroppers …

In this paper, we develop a non-orthogonal multiple access (NOMA)-based two-way relay
network with secrecy considerations, in which two users wish to exchange their NOMA …

In this article, we propose a novel cooperative non-orthogonal multiple access (NOMA)
scheme to guarantee the secure transmission of a specific user via two time slots. During the …

This paper investigates physical layer security (PLS) in cognitive radio inspired non-
orthogonal multiple access (CR-NOMA) networks with multiple primary and secondary …

Cognitive radio network (CRN) and non-orthogonal multiple-access (NOMA) play the crucial
roles in the fifth generation wireless communication systems. However, the physical-layer …

Cooperative communication that integrates cognitive radio and non-orthogonal multiple
access is recognized as an emerging technology for fifth-generation and beyond wireless …