For conventional wireless networks, the main target of resource allocation (RA) is to
efficiently utilize the available resources. Generally, there are no changes in the available …

With an exaggerating upsurge in mobile data traffic, the wireless networks are confronted
with a subtle task of enhancing their network capacity. The shortage of spectrum resources …

This paper investigates the secrecy performance of full-duplex relay (FDR) networks. The
resulting analysis shows that FDR networks have better secrecy performance than half …

Cognitive satellite–terrestrial networks (CSTNs) have been recognized as a promising
network architecture for addressing spectrum scarcity problem in next-generation …

Secure communication is a promising technology for wireless networks because it ensures
secure transmission of information. In this paper, we investigate the joint subcarrier (SC) …

In this paper, we design transmit beamforming for a full duplex base station (FD-BS)
considering both self-interference mitigation and physical-layer security. The proposed …

An underlay cognitive radio unit over Nakagami-m fading channel, which consists of a
source S, a secondary user (SU), and an eavesdropper who wants to eavesdrop the …

In order to provide information privacy for the primary network and support the secondary
quality-of-service (QoS) requirement, we design a cooperative primary preserving strategy …

We consider a cognitive wireless powered communication network sharing the spectrum
with a primary network, which faces security threats from eavesdroppers (EAVs). We …

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 …