In this study, the authors investigate the physical‐layer security in a cognitive radio network
where both the secondary user (SU) and the primary user (PU) are facing security threats …

This paper considers a cognitive radio network with a set of secondary users (SUs) who
share a spectrum band licensed to a primary user (PU). The PU is assumed to be …

This letter investigates secrecy performance for cognitive transmissions, where a secondary
user (SU) shares same spectrum with a primary user (PU) simultaneously ensuring the …

In this study, the physical layer security for cognitive radio network (CRN) will be
investigated in which a secondary user transmitter (SU-Tx) sends confidential information to …

In this study, secure communication in cognitive radio networks is investigated. A
cooperative jammer is utilised to transmit artificial noise for interfering with the …

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 …

We consider a cognitive radio network where multiple secondary users (SUs) coexist with a
primary user (PU). There exist multiple eavesdroppers (EAVs) who attempt to overhear the …

This paper investigates the effect of multiuser gain provided by the secondary user selection
on the secrecy performance of the primary users. We first propose a simple scheme where …

In this paper, we investigate the physical-layer security of a secure communication in single-
input multiple-output (SIMO) cognitive radio networks (CRNs) in the presence of two …

We investigate the secrecy outage performance of maximal ratio combining (MRC) in
cognitive radio networks over Rayleigh fading channels. In a single-input multiple-output …