This paper investigates the physical-layer security (PLS) for an overlay cognitive radio
network (CRN). Due to the unreliability of direct communication between the primary users …

Physical-layer security (PLS) is examined in this paper for an underlay cognitive radio
network (CRN). Two secondary users (SUs) interact through a relay that is equipped with …

In this correspondence paper, we investigate the security and efficiency of data transmission
for overlay cognitive radio networks, which consist of a pair of primary users, multiple pairs of …

In cognitive radio networks, direct communications between a primary sender–recipient pair
may be blocked due to uncertainties such as deep fading. Therefore, this paper studies …

Cognitive radio networks (CRNs) are acknowledged for their ability to tackle the issue of
spectrum under-utilization. In the realm of CRNs, this paper investigates the energy …

In this paper, physical-layer security (PLS) of an underlay cognitive radio network (CRN)
operating over cascaded Rayleigh fading channels is examined. In this scenario, a …

This work investigates the secrecy capability of energy harvesting based overlay cognitive
networks (EHOCNs). To this end, we assume that a message by a licensed transmitter is …

Spectrum demand has increased with the rapid growth of wireless devices and wireless
service usage. The rapid development of 5G smart cities and the industrial Internet of Things …

This paper exploits a self‐powered secondary relay to not only maintain but also secure
communications between a secondary source and a secondary destination in cognitive …

In this paper, we examine the physical (PHY) layer security in terms of secrecy outage of an
energy harvesting (EH) relay based underlay cognitive radio network (CRN) in the presence …