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 …

LPD communication has recently emerged as a new transmission technology to address
privacy and security in wireless networks. Recent studies have established the fundamental …

This work examines the performance gain achieved by deploying an intelligent reflecting
surface (IRS) in covert communications. To this end, we formulate the joint design of the …

This paper considers covert communications in the context of unmanned aerial vehicle
(UAV) networks, aiming to hide a UAV for transmitting critical information out of an area that …

Unmanned aerial vehicles (UAVs) are envisioned to be extensively employed for assisting
wireless communications in the Internet of Things (IoT). On the other hand, terahertz (THz) …

In this letter, we develop a new framework to jointly characterize covertness and timeliness
of short-packet communications, in which a new metric named covert age of information …

Owing to the ever increasing of information privacy requirement, covert communication has
gained more and more attention, whose effective range is limited by the trade-off between …

This paper jointly optimizes the flying location and wireless communication transmit power
for an unmanned aerial vehicle (UAV) conducting covert operations. This is motivated by …

This letter considers covert communication in downlink NOMA systems, where a public
action (communication from Alice to the NOMA-weak user U1) is used to provide a cover for …

Covert communications enable a transmitter to send information reliably in the presence of
an adversary, who looks to detect whether the transmission took place or not. We consider …