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 in cognitive radio networks (CRNs) is investigated.
We consider an underlay relay assisted CRN consisting of multiple secondary sources …

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 a cognitive radio network (CRN), the interference caused by secondary users (SUs) is
conventionally regarded as an obstacle to the throughput of the primary network. However …

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 …

This paper investigates physical layer security of underlay cognitive radio networks with
interference constraint over α-μ fading channels. Specifically, in the secondary network, a …

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 …

This paper considers a proactive eavesdropping problem, in which a full-duplex legitimate
monitor aims to eavesdrop on a suspicious communication link between the secondary pairs …

In this paper, we investigate the secondary network physical layer security under the outage
constraint of the primary user (PU) receiver and interference from the PU transmitter to the …

In this paper, we consider the physical-layer security for the primary system in an underlay
cognitive radio model which comprises of a primary source–destination pair, a secondary …