In this paper, we investigate the throughput performance of covert communication over a
channel with incumbent channel activities. Unlike existing work, we explicitly consider the …

In this letter, we consider the covert wireless communication (CWC) against a jamming-
assisted proactive detector in two scenarios corresponding to whether Alice utilizes the …

This work, for the first time, tackles channel estimation design with pilots in the context of
covert wireless communication. We consider Rayleigh fading for the communication channel …

Covert communication hides the transmission of a message from a watchful adversary, while
ensuring reliable information decoding at the receiver, providing enhanced security in …

Covert communication is to achieve a reliable transmission from a transmitter to a receiver
while guaranteeing an arbitrarily small probability of this transmission being detected by a …

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 …

Covert communication is achieved if the transmitter (Alice) sends messages to a legitimate
receiver (Bob) without detection by an attentive warden (Willie). Recently, there has been …

A covert communication system under block fading channels is considered, where users
experience uncertainty about their channel knowledge. The transmitter seeks to hide the …

In this work, the covert communication assisted by a probabilistic jammer is investigated in
the finite blocklength regime, in which the jammer emits jamming signals with a certain …

In this letter, we investigate covert communications with finite blocklength under the channel
inversion power control (CIPC) scheme, where a transmitter is allowed to communicate with …