In this paper, the physical layer security in cognitive radio networks (CRNs) is investigated.
We consider an underlay relay assisted CRN consisting of multiple secondary sources …

In this paper, physical-layer security (PLS) for an underlay cognitive radio network (CRN)
over cascaded Rayleigh fading channels is studied. The underlying cognitive radio system …

Wireless communication systems are vulnerable to eavesdropping attack in which the
attacker overhear the transmitted data in the network. Hence, the physical-layer security is of …

In limited space scenarios, the antennas in the multiantenna cognitive radio (CR) system are
closely spaced and often experience correlation among them. In this work, the secrecy …

The fifth-generation (5G) communications and beyond are expected to serve a huge number
of devices and services. However, due to the fixed spectrum allocation policies, the need for …

In this paper, we investigate physical layer security for multiple decode-and-forward (DF)
relaying underlay cognitive radio networks (CRNs) with fixed transmit power at the …

The present contribution investigates the physical layer security in a cognitive radio network
(CRN). To this end, we consider an underlay uplink CRN consisting of multiple secondary …

In this paper, the physical layer security of a dual-hop underlay uplink cognitive radio
network is investigated over Nakagami-m fading channels. Specifically, multiple secondary …

In this study, the secrecy performance of cooperative half‐duplex cognitive relay networks
(CRNs) comprised of multiple primary users (PUs) and multiple eavesdroppers under the …

In this paper, we investigate the secrecy outage performance of decode-and-forward (DF)
buffer-aided multi-antenna underlay cognitive relay networks (CRNs) in the presence of an …