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 …

Covert communication conceals transmission of messages between Alice and Bob from an
adversary, Willie, who tries to determine if a transmission took place or not. While covert …

In a majority of research on covert communications, knowledge about channel state
information (CSI) of main channel and/or warden channel is assumed to be known or …

We study the covert communication over K-user-pair discrete memoryless interference
channels (DM-ICs) with a warden. It is assumed that the warden's channel output distribution …

Covert wireless communication intends to prevent hostile surveillance but is threatened by
the powerful multi-antenna detection technique. In this paper, we investigate finite …

Covert communication conceals the existence of the transmission from a watchful adversary.
We consider the fundamental limits for covert communications via packet insertion over …

We consider the problem of covert communication over wireless adhoc networks in which
(roughly) n legitimate nodes (LNs) and n κ for κ> 0 non-communicating warden nodes (WNs) …

We consider entanglement-assisted communication over the qubit depolarizing channel
under the security requirement of covert communication, where not only the information is …

This paper considers a full-duplex relay-assisted system for covert communication, in which
both the transmitter and the relay are the sender of covert messages. Different from current …

Covert communication is the undetected transmission of sensitive information over a
communication channel. In wireless communication systems, channel impairments such as …