Security is a challenging issue for cognitive radio (CR) to be used in future 5G mobile
systems. Conventionally, interference will degrade the performance of a primary user (PU) …

This paper investigates the secrecy outage performance of transmit antenna selection
(TAS)/maximal ratio combining (MRC) in multiple-input-multiple-output (MIMO) cognitive …

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 paper, we introduce a new cooperative paradigm for secure communication in
cognitive radio networks (CRNs) where secondary users (SUs) are allowed to access the …

In this paper, we present a method of utilizing channel diversity to improve the secrecy
outage probability and the intercept probability in a cognitive radio (CR) network. With the …

We consider a cooperation scenario between primary users and untrusted secondary users
in cognitive radio networks. The secondary users are willing to help the primary users to …

In this paper, we consider a new cognitive radio network (CRN), where cooperative
beamforming is designed to enhance the physical-layer security for both primary users …

In this paper, we address the physical-layer security issue of a secondary user (SU) in a
spectrum-sharing cognitive radio network (CRN) from an information-theoretic perspective …

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 …

Cognitive radio networks (CRNs) and millimeter wave (mmWave) communications are two
major technologies to enhance the spectrum efficiency (SE). Considering that the SE …