Physical layer security (PLS) has emerged as a new concept and powerful alternative that
can complement and may even replace encryption-based approaches, which entail many …

Due to the broadcast nature of radio propagation, the wireless air interface is open and
accessible to both authorized and illegitimate users. This completely differs from a wired …

As a complement to high-layer encryption techniques, physical layer security has been
widely recognized as a promising way to enhance wireless security by exploiting the …

Cognitive radio (CR) and non-orthogonal multiple access (NOMA) have been deemed two
promising technologies due to their potential to achieve high spectral efficiency and massive …

Due to the malicious attacks in wireless networks, physical layer security has attracted
increasing concerns from both academia and industry. The research on physical layer …

This paper investigates physical layer security (PLS) in cognitive radio inspired non-
orthogonal multiple access (CR-NOMA) networks with multiple primary and secondary …

A multiple-input single-output cognitive radio downlink network is studied with simultaneous
wireless information and power transfer. In this network, a secondary user coexists with …

This article investigates the physical-layer security of CR networks, which are vulnerable to
various newly arising attacks targeting the weaknesses of CR communications and …

This paper studies the robust secure beamforming (BF) issue of fifth generation (5G) cellular
system operating at millimeter wave frequency and coexisting with a satellite network. By …

We consider secure resource allocations for orthogonal frequency division multiple access
(OFDMA) two-way relay wireless sensor networks (WSNs). The joint problem of subcarrier …