In this paper, we propose an innovative framework to improve the physical layer security of
cognitive radio nonorthogonal multiple access (CR-NOMA) networks. Specifically, we …

An underlay cognitive radio network (CRN) with non-orthogonal multiple access (NOMA) is
a promising multiple access scheme to solve the problem of scarce spectrum. This novel …

By the integration of cooperative cognitive radio (CR) and nonorthogonal multiple access
(NOMA), cooperative CR NOMA networks can improve the spectrum efficiency of wireless …

In this paper, we design a secure transmission scheme in hybrid automatic repeat request
(HARQ) assisted cognitive non-orthogonal multiple access (NOMA) networks, where a …

Cognitive radio (CR) and non-orthogonal multiple access (NOMA) have been deemed two
promising technologies due to their potential to achieve high spectral efficiency and massive …

This paper investigates physical layer security (PLS) in nonorthogonal multiple access-
enabled (NOMA-enabled) cognitive radio networks (CRNs). Considering an existing …

Recently, the combination of cognitive radio networks with the nonorthogonal multiple
access (NOMA) approach has emerged as a viable option for not only improving spectrum …

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

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

This paper presents the secrecy performance of Cognitive Radio (CR) networks by enabling
non-orthogonal multiple access (NOMA) in downlink. The multiple-input and single output …