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 …

In this article, we investigate covert millimeter-wave (mmWave) communications with finite
blocklength, where a multiantenna transmitter sends covert messages to a legitimate …

In this paper, we study covert communications between a pair of legitimate transmitter-
receiver against a watchful warden over slow fading channels. There coexist multiple …

Full-duplex (FD) communication is a potential game changer for future wireless networks. It
allows for simultaneous transmit and receive operations over the same frequency band, a …

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 …

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 …

In this work, we aim to maximize the timeliness of data collection subject to a covertness
constraint in unmanned aerial vehicle (UAV)-aided Internet of Things (IoT) networks, where …

Covert communication can hide the legitimate transmission from unauthorized
eavesdropping. Benefiting from the deployment flexibility, unmanned aerial vehicles (UAVs) …