In this paper, we investigated a multi-antenna covert communication in underlay cognitive
radio networks (UCRNs), by considering both cases that Willie has the perfect and statistical …

This article considers a relay-based underlay cognitive radio vehicular network, where a
secondary source vehicle transmits information to a secondary destination vehicle with a …

This work considers a single-input-single-output (SISO) simultaneous wireless information
and power transfer (SWIPT) system, which comprises a single-antenna transmitter named …

In this paper, we investigate the integration of physical layer security (PLS) and cognitive
radio (CR) technologies with non-orthogonal multiple access (NOMA) to enhance spectral …

In this paper, we investigate a secure transmission for a rate-splitting multiple-access
(RSMA)-based multiple-input single-output (MISO) underlay cognitive radio (CR) system …

This paper studies the physical layer security (PLS) of cognitive radio networks (CRNs) with
Fisher–Snedecor F distribution. To resolve the security issues within CRNs, we derived …

Cognitive radio (CR) and non-orthogonal multiple access (NOMA) are two technologies
witnessed to offer tremendous possibilities for the next generation wireless networks to …

Due to poor (limited) scattering, a correlation among channels is inevitable, resulting in
performance degradation of wireless communication systems. In this paper, we propose a …

To address the concerns of energy supply and spectrum scarcity for wireless devices,
energy harvesting cognitive radio networks have been proposed. To improve spectrum …

Cognitive radio (CR) and non-orthogonal multiple access (NOMA) can be regarded as two
promising technologies which bestows with tremendous possible solutions for the next …