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Covert Communication With Relay Selection [PDF]
IEEE Wireless Communications Letters, 2021 In this letter, we investigate covert communication in relay networks with relay selection. We consider the scenario that while forwarding the source’s message, the selected relay opportunistically transmits its own message to the destination covertly. We derive the probability of detection error (PDE) and the average covert rate (ACR) in a closed form,
Yinjie Su +2 more
exaly +3 more sources
Covert Wireless Communication With a Poisson Field of Interferers [PDF]
IEEE Transactions on Wireless Communications, 2018 In this paper, we study covert communication in wireless networks consisting of a transmitter, Alice, an intended receiver, Bob, a warden, Willie, and a Poisson field of interferers.
Biao He, Shihao Yan, Xiangyun Zhou
exaly +7 more sources
Covert Communication in Mobile Applications [PDF]
2015 30th IEEE/ACM International Conference on Automated Software Engineering (ASE), 2015 This paper studies communication patterns in mobile applications. Our analysis shows that 63% of the external communication made by top-popular free Android applications from Google Play has no effect on the user-observable application functionality.
Gordon, Michael I. +3 more
core +4 more sources
Covert Communication With Mismatched Decoders
IEEE Transactions on Information Theory, 2022 This paper considers the problem of covert communication with mismatched decoding, in which a sender wishes to reliably communicate with a receiver whose decoder is fixed and possibly sub-optimal, and simultaneously to ensure that the communication is covert with respect to a warden.
Qiaosheng Eric Zhang, Vincent Y. F. Tan
openaire +2 more sources
Covert Quantum Communication [PDF]
Physical Review Letters, 2016 We extend covert communication to the quantum regime by showing that covert quantum communication is possible over optical channels with noise arising either from the environment or from the sender's lab. In particular, we show that sequences of qubits can be transmitted covertly by using both a single photon and a coherent state encoding. We study the
Arrazola, Juan Miguel, Scarani, Valerio
openaire +3 more sources
On Covert Communication With Noise Uncertainty [PDF]
IEEE Communications Letters, 2017 to appear in IEEE Communications ...
Biao He +3 more
openaire +3 more sources
Covert Communications With Constrained Age of Information [PDF]
IEEE Wireless Communications Letters, 2021 5 pages, 3 ...
Yida Wang 0004 +3 more
openaire +2 more sources
Covert Communication in Fading Channels under Channel Uncertainty [PDF]
, 2017 A covert communication system under block fading channels is considered where users experience uncertainty about their channel knowledge. The transmitter seeks to hide the covert communication to a private user by exploiting a legitimate public ...
Shahzad, Khurram +2 more
core +2 more sources
CoRR, 2014 Encryption prevents unauthorized decoding, but does not ensure stealth---a security demand that a mere presence of a message be undetectable. We characterize the ultimate limit of covert communication that is secure against the most powerful physically-permissible adversary.
Boulat A. Bash +6 more
openaire +2 more sources
Gaussian Signalling for Covert Communications [PDF]
IEEE Transactions on Wireless Communications, 2019 In this work, we examine the optimality of Gaussian signalling for covert communications with an upper bound on $\mathcal{D}(p_{_1}||p_{_0})$ or $\mathcal{D}(p_{_0}||p_{_1})$ as the covertness constraint, where $\mathcal{D}(p_{_1}||p_{_0})$ and $\mathcal{D}(p_{_0}||p_{_1})$ are different due to the asymmetry of Kullback-Leibler divergence, $p_{_0}(y ...
Shihao Yan +3 more
openaire +3 more sources