Results 31 to 40 of about 13,309 (290)
Covert Communications With Constrained Age of Information [PDF]
IEEE Wireless Communications Letters, 2021 5 pages, 3 ...
Yida Wang 0004 +3 more
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A Formulation of the Potential for Communication Condition using C2KA [PDF]
Electronic Proceedings in Theoretical Computer Science, 2014 An integral part of safeguarding systems of communicating agents from covert channel communication is having the ability to identify when a covert channel may exist in a given system and which agents are more prone to covert channels than others. In this
Jason Jaskolka, Ridha Khedri
doaj +1 more source
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
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Covert channel-internal control protocols: attacks and defense
, 2022 S.2986-2997Network covert channels have become a sophisticated means for transferring hidden information over the network. Covert channel-internal control protocols, also called micro protocols, have been introduced in the recent years to enhance ...
Eissa, O. +4 more
core +1 more source
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
Visuo-tactile links in covert exogenous spatial attention remap across changes in unseen hand posture [PDF]
, 2002 We investigated the effect of unseen hand posture on cross-modal, visuo-tactile links in covert spatial attention. In Experiment 1, a spatially nonpredictive visual cue was presented to the left or right hemifleld shortly before a tactile target on ...
Kennett, S +8 more
core +1 more source
Covert Channel Pada Aliran Data Websocket untuk Komunikasi Messaging XMPP
IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2015 Abstrak Layanan komunikasi Instant Messaging menyediakan berbagai fitur komunikasi yang bisa digunakan oleh pengguna, diantaranya adalah text messaging (pesan teks) baik online maupun offline.
Yoga Dwitya Pramudita, Reza Pulungan
doaj +1 more source
Review on unmanned aerial vehicle covert communication network
Dianxin kexue, 2023 Unmanned aerial vehicle (UAV) communication network is an important part of the future integrated space-aerial-ground network, and an effective support to achieve the global three-dimensional coverage of the communication network.The open characteristics
Hengzhi BAI +3 more
doaj +2 more sources
Hiding Messages in Secure Connection Transmissions with Full-Duplex Overt Receiver
Sensors, 2022 This paper considers hiding messages in overt transmissions with a full-duplex receiver, which emits artificial noise to secure its transmission connection while a transmitter opportunistically sends a covert message to a covert user.
Lap Luat Nguyen +4 more
doaj +1 more source
Performance analysis of covert wireless communication based on beam forming with noise uncertainty
Tongxin xuebao, 2020 In order to establish covert wireless communication in Rayleigh fading environment with noise uncertainty,a scheme of downlink covert wireless communication based on complex Gaussian random coding and beam forming was adopted,and more importantly,the ...
Yuda LIN +3 more
doaj +2 more sources