In order to improve the spectrum efficiency and secrecy energy efficiency, in this paper, we
propose a non-orthogonal multiple access (NOMA)-based secure scheme for cognitive radio …

The security energy efficiency (SEE) is investigated in a two way-full duplex (TW-FD) relay
assisted cognitive radio non-orthogonal multiple access (CR-NOMA) networks. In order to …

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

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 …

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 …

In this paper, we consider an underlay multiple-input-multiple-output (MIMO) cognitive radio
network (CRN) including a pair of primary nodes, a couple of secondary nodes, and an …

In this paper, we investigate radio frequency (RF) energy harvesting (EH) in wireless sensor
networks (WSNs) using non-orthogonal multiple access (NOMA) uplink transmission with …

In this paper, a downlink security-aware resource allocation problem with delay constraint
via spectrum sensing is modeled as a mixed integer non-linear problem for non-orthogonal …

In this paper, we analyze the secrecy and throughput of multiple-input single-output (MISO)
energy harvesting (EH) Internet of Things (IoT) systems, in which a multi-antenna base …