Results 11 to 20 of about 154,545 (256)
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
Secret key expansion from covert communication [PDF]
Physical Review A, 2017 Covert communication allows us to transmit messages in such a way that it is not possible to detect that the communication is occurring. This provides protection in situations where knowledge that people are talking to each other may be incriminating to ...
Amiri, Ryan, Arrazola, Juan Miguel
core +2 more sources
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 +5 more
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
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 Zhang, Vincent Y. F. Tan
openaire +2 more sources
STAR-RIS Aided Covert Communications
GLOBECOM 2023 - 2023 IEEE Global Communications Conference, 2023 This paper investigates the multi-antenna covert communications assisted by a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS). In particular, to shelter the existence of communications between transmitter and receiver from a warden, a friendly full-duplex receiver with two antennas is leveraged to make ...
Xiao, Han +6 more
openaire +2 more sources
Covert Transmission with Antenna Selection and Using an External Jammer [PDF]
AUT 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
On IRS-Assisted Covert Communication with a Friendly UAV
Drones, 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 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
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