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 …

In this article, we investigate the performance of spectrum sharing inunderlay cognitive radio
(CR)-inspired nonorthogonal multiple access (NOMA) systems, at which a primary …

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

To improve the radio spectral efficiency for 5G and beyond, novel radio access techniques
need to be designed to accommodate unprecedented number of connected devices, and …

Spectrum resources are the precious and limited natural resources. In order to improve the
utilization of spectrum resources and maximize the network throughput, this paper studies …

In this paper, the problem of joint relay selection and power allocation (J-RS-PA) for NOMA-
based multicast cognitive radio networks is considered. In particular, the aim is to …

Cognitive Radio and the emerging Non-Orthogonal Multiple Access (NOMA) techniques
hold the potential to fulfill the increasing demands of radio spectrum by 5G-and-B5G …

Abstract Presently, Secondary Networks (SNs) are gleaned from rising capacity with
reducing interference together instead of making them energy-efficient for green …

Cognitive radio non-orthogonal multiple access (CR-NOMA) networks promise improved
spectrum utilization and capacity in 5G networks. In this work, we aim to investigate efficient …

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 …