Results 11 to 20 of about 3,510,197 (304)

Covert Quantum Communication [PDF]

open access: yesPhysical 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

Covert Channel Communication as an Emerging Security Threat in 2.5D/3D Integrated Systems

open access: yesSensors, 2023
In this paper, first, a broad overview of existing covert channel communication-based security attacks is provided. Such covert channels establish a communication link between two entities that are not authorized to share data. The secret data is encoded
Ivan Miketic   +2 more
doaj   +1 more source

On Covert Communication With Noise Uncertainty [PDF]

open access: yesIEEE Communications Letters, 2017
to appear in IEEE Communications ...
Biao He 0001   +3 more
openaire   +3 more sources

Covert Performance for Integrated Satellite Multiple Terrestrial Relay Networks with Partial Relay Selection

open access: yesSensors, 2022
Integrated satellite multiple terrestrial relay network (ISMTRN) is a new network architecture that combines satellite communication with terrestrial communication.
Zeke Wu   +4 more
doaj   +1 more source

On IRS-Assisted Covert Communication with a Friendly UAV

open access: yesDrones, 2023
Driven by the rapidly growing demand for information security, covert wireless communication has become an essential technology and attracted tremendous attention.
Xiaobei Xu   +6 more
doaj   +1 more source

Covert Transmission with Antenna Selection and Using an External Jammer [PDF]

open access: yesAUT Journal of Modeling and Simulation, 2020
This paper adopts the antenna selection technique to enhance the covert rate in a wireless communication network comprised of a source, a destination, an external jammer and an eavesdropper. In the covert communication, the level of transmit power is low
Morteza Sarkheil   +3 more
doaj   +1 more source

Covert Communications With Constrained Age of Information [PDF]

open access: yesIEEE Wireless Communications Letters, 2021
5 pages, 3 ...
Yida Wang 0004   +3 more
openaire   +2 more sources

A Formulation of the Potential for Communication Condition using C2KA [PDF]

open access: yesElectronic 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

Covert Optical Communication

open access: yesCoRR, 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

Hiding Messages in Secure Connection Transmissions with Full-Duplex Overt Receiver

open access: yesSensors, 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

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