This paper investigates the joint relay and antenna selection strategy for amplify-and-
forward (AF) cognitive radio-inspired non-orthogonal multiple access (CR-NOMA) systems …

In this paper, we investigate an underlay cognitive non-orthogonal multiple access (NOMA)-
based coordinated direct and relay transmission network with imperfect successive …

The integration of non-orthogonal multiple access (NOMA) technology and cognitive radio
networks (CRNs) promises to enhance the spectrum utilization efficiency of 5G and beyond …

Non-orthogonal multiple access (NOMA) is a promising technique to satisfy a host of access
demand and provide higher throughput. It enables that multiple users are multiplexed with …

Two emerging technologies toward 5G wireless networks, namely non-orthogonal multiple
access (NOMA) and cognitive radio (CR), will provide more efficient utilization of wireless …

In this paper, cognitive radio (CR) based on non-orthogonal multiple access (NOMA) is
considered over frequency non-selective Rayleigh fading channels. The two techniques are …

The integration between cognitive radio (CR) technology and non-orthogonal multiple
access (NOMA) technique has been recently configured as a promising solution to meet the …

With the exponential demand for frequency spectrum and the new generation of
communication systems (5G), efficient and less complex ways of using the spectrum are …

Both cognitive radio and non-orthogonal multiple access (NOMA) are spectral efficient
techniques in the future wireless communication networks. In this paper, a novel cooperative …

In this paper, we investigate the effectiveness of an overlay cognitive radio (OCR) coupled
with non-orthogonal multiple access (NOMA) system using a full-duplex (FD) cooperative …