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 …

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 …

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 …

With the gradual promotion of the fifth generation (5G) mobile communication and Internet of
Things (IoT) applications, wireless communication transmission will be more vulnerable to …

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 …

Owing to the flexible mobility and convenient deployment, unmanned aerial vehicle (UAV)
aided networks can facilitate many applications. However, the open accessibility of wireless …

Covert communication can hide the information transmission process from the warden to
prevent adversarial eavesdropping. However, it becomes challenging when the location of …

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 …

This work considers unmanned aerial vehicle (UAV) networks for collecting data covertly
from ground users. The full-duplex (FD) UAV intends to gather critical information from a …