Information security has always been a critical issue in wireless networks. Apart from other
secure techniques, covert communication emerges as a potential solution to security for …

Covert communication enables covert information transmission in an undetectable way to
prevent the exposure of communication behaviors. Blockchain-based covert communication …

Internet of Things (IoT) systems are of paramount importance to provide ubiquitous wireless
connectivity for smart cities. However, such systems are facing security challenges due to …

In this work, we investigate the status packet covert communication with time uncertainty in
time-critical wireless networks. We model the packet generation as a Poisson process that …

We consider a scenario in which K transmitters attempt to communicate covert messages
reliably to a legitimate receiver over a discrete memoryless multiple-access channel (MAC) …

This paper investigates the covert communications via cooperative jamming and relay
selection in a wireless relay system, where a source intends to transmit a message to its …

This work, for the first time, tackles channel estimation design with pilots in the context of
covert wireless communication. We consider Rayleigh fading for the communication channel …

Covert communication, also known as communication with low probability of detection, aims
to provide reliable communication for legal users and prevent any other user from detecting …

Physical layer covert communication is a crucial secure communication technology that
enables a transmitter to convey information covertly to a recipient without being detected by …

This work investigates the phase gain of intelligent reflecting surface (IRS) covert
communication over complex-valued additive white Gaussian noise (AWGN) channels. The …