We investigate physical layer security of an uplink NOMA system consisting of one base
station, multiple users and one eavesdropper. During each uplink transmission, two users …

Cognitive Radio Network (CRN) is considered as a viable solution on Internet of Vehicle
(IoV) where objects equipped with cognition make decisions intelligently through the …

The secure performance of wideband cognitive radio networks (CRNs) with OFDMA
(orthogonal frequency-division multiple access) achieved by using physical layer security is …

This paper examines integrating jamming and secondary signals for covert communications
in cognitive radio networks (CRNs), aiming to enhance covertness by using jamming and …

This letter investigates a power allocation problem for a cooperative cognitive covert
communication system, where the relay secondary transmitter (ST) covertly transmits private …

Physical-layer security (PLS) has become an intriguing technology to address
eavesdrop** issues in Internet of Things (IoT) systems owing to its low complexity and …

In the paper, we investigate the physical layer security (PLS) of an unmanned aerial vehicle
(UAV) enabled communication system that integrates non-orthogonal multiple access …

The need for more efficient spectrum utilization is becoming more pronounced in our
increasingly digitalized society. However, this also introduces a variety of new security …

As Internet-of-Things (IoT) networks provide efficient ways to transfer data, they are used
widely in data sensing applications. These applications can further include wireless sensor …

In this paper, we design a friendly jammer selection scheme for the social Internet of Things
(IoT). A typical social IoT is composed of a cellular network with underlaying Device-to …