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 …

We investigate covert wireless communication in a multi-antenna relay network, where the
relay transmits its own covert message to the destination when assisting the source's …

Considering multi-user downlink ultra-high reliability and low latency communications
(URLLC), this paper employs the artificial noise (AN) technique to establish a secure and …

This paper investigates covert communications with finite blocklength in the presence of
multiple randomly distributed wardens, which are modeled as a Poisson point process …

We propose covert beamforming design frameworks for integrated radar sensing and
communication (IRSC) systems, where the radar can covertly communicate with legitimate …

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 …

Device-to-device (D2D) communications underlaid cellular networks have emerged as a
promising network architecture to provide extended coverage and high data rate for various …

In this letter, we investigate covert communications in uplink non-orthogonal multiple access
(NOMA) systems, where a covert user tries to transmit private information to a legitimate …

In this letter, we jointly investigate packet generation and covert communication in delay-
intolerant status update systems. For the first time, we establish a bridge between the prior …