Cognitive radio networks (CRNs) have demonstrated great benefits in improving spectrum
efficiency. However, due to the exploitative character of wireless access, CRNs confront …

Spectrum sensing and communication security are of crucial importance in cognitive radio
networks (CRNs). In this paper, we utilize intelligent reflecting surfaces (IRS) to …

Intelligent reflecting surface (IRS) is a very promising technology for the development of
beyond 5G or 6G wireless communications due to its low complexity, intelligence, and green …

The paper studies the secrecy communication threatened by a single eavesdropper in
Energy Harvesting (EH)-based cognitive radio networks, where both the Secure User (SU) …

Secure communications are of paramount importance in spectrum sharing networks due to
the allocation and sharing characteristics of spectrum resources. To further explore the …

This paper presents a novel approach to consider trade-off in secrecy rate and power
consumption in intelligent reflecting surface (IRS)-assisted cognitive radio networks (CRNs) …

In this paper, intelligent reflecting surface (IRS) technology is employed to enhance physical
layer security (PLS) for spectrum sharing communication systems with orthogonal frequency …

The spectrum efficiency (SE) and security of the secondary users (SUs) in the cognitive radio
networks (CRNs) have become two main issues due to the limitation interference to the …

Confidentiality of information flowing over the air is becoming a critical issue in cognitive
radio (CR) towards future 5G networks. In this paper, we employ an unmanned aerial …

Intelligent reflecting surface (IRS) has been proposed as a very promising technique for
beyond 5G and 6G communications. In this paper, we apply IRS to enhance the secure …