Cognitive radio has emerged as an essential recipe for future high-capacity, high-coverage
multitier hierarchical networks. Securing data transmission in these networks is of the utmost …

In this paper, we study physical layer security in an underlay cognitive radio (CR) network.
We consider the problem of secure communication between a secondary transmitter …

This paper investigates data transmission and physical-layer secrecy in cognitive radio (CR)
networks. We propose to apply full-duplex transmission and dual antenna selection at a …

This paper studies the secure multiple-antenna transmission in slow fading channels for the
cognitive radio network, where a multiple-input, single-output, multieavesdropper (MISOME) …

In this paper, we consider a cognitive radio network that consists of one cognitive base
station (CBS) and multiple cognitive users (CUs) in the presence of multiple eavesdroppers …

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 article we explore the security issues on physical layer for cognitive radio networks.
First we give an overview on several existing security attacks to the physical layer in …

In this paper, we address the issue of optimal transmitter design to achieve physical layer
security for a multiple-input single-output (MISO) cognitive radio network (CRN), in which a …

In this paper, we investigate the physical-layer security of a multi-user multi-eavesdropper
cognitive radio system, which is composed of multiple cognitive users (CUs) transmitting to a …

This paper considers a single-input-multiple-output underlay cognitive wiretap system over
Nakagami-m channels with generalized selection combining, where confidential messages …