Covert communication with channel-state information at the transmitter

SH Lee, L Wang, A Khisti… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
We consider the problem of covert communication over a state-dependent channel, where
the transmitter has causal or noncausal knowledge of the channel states. Here, covert …

Keyless covert communication via channel state information

H ZivariFard, MR Bloch… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
We consider the problem of covert communication over a state-dependent channel when the
Channel State Information (CSI) is available either non-causally, causally, or strictly …

Time-division is optimal for covert communication over some broadcast channels

VYF Tan, SH Lee - IEEE Transactions on Information forensics …, 2018 - ieeexplore.ieee.org
We consider a covert communication scenario where a transmitter wishes to communicate
simultaneously to two legitimate receivers while ensuring that the communication is not …

Covert communication in the presence of an uninformed, informed, and coordinated jammer

H ZivariFard, MR Bloch… - 2022 IEEE International …, 2022 - ieeexplore.ieee.org
This paper is eligible for the Jack Keil Wolf ISIT Student Paper Award. This paper
investigates covert communication in the presence of a cooperative jammer. Covert …

Covert bits through queues

P Mukherjee, S Ulukus - 2016 IEEE Conference on …, 2016 - ieeexplore.ieee.org
We consider covert communication using a queuing timing channel in the presence of a
warden. The covert message is encoded using the inter-arrival times of the packets, and the …

Covert Communication Over a -User Multiple-Access Channel

KSK Arumugam, MR Bloch - IEEE Transactions on Information …, 2019 - ieeexplore.ieee.org
We consider a scenario in which K transmitters attempt to communicate covert messages
reliably to a legitimate receiver over a discrete memoryless multiple-access channel (MAC) …

Achieving positive covert capacity over MIMO AWGN channels

A Bendary, A Abdelaziz… - IEEE Journal on Selected …, 2021 - ieeexplore.ieee.org
We consider covert communication, ie, hiding the presence of communication from an
adversary for multiple-input multiple-output (MIMO) additive white Gaussian noise (AWGN) …

Delay-intolerant covert communications with either fixed or random transmit power

S Yan, B He, X Zhou, Y Cong… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In this paper, we study delay-intolerant covert communications in additive white Gaussian
noise (AWGN) channels with a finite block length, ie, a finite number of channel uses …

Keyless covert communication over multiple-access channels

KSK Arumugam, MR Bloch - 2016 IEEE International …, 2016 - ieeexplore.ieee.org
We consider a scenario in which two legitimate transmitters attempt to communicate with a
legitimate receiver over a discrete memoryless Multiple-Access Channel (MAC), while …

Covert wireless communications under quasi-static fading with channel uncertainty

K Shahzad, X Zhou - IEEE Transactions on Information …, 2020 - ieeexplore.ieee.org
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 …