Results 271 to 280 of about 349,876 (317)

Covert Communications for STAR-RIS-Assisted Industrial Networks With a Full Duplex Receiver and RSMA

IEEE Internet of Things Journal
In this article, we investigate covert communication in simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-assisted networks with rate-splitting multiple access (RSMA).
Yiran Zhang, Liang Yang, Xingwang Li, K. Guo, Hongwu Liu   +4 more
semanticscholar   +1 more source

Rethinking covert stuttering

Journal of Fluency Disorders, 2017
The experience of passing as fluent, also called covert stuttering, has been uncritically framed as an inherently negative pursuit. Historically passing has been understood as a repression of one's true, authentic self in response to either psychological distress or social discrimination.
Christopher Dominick, Constantino, Walter H, Manning, Susan Naomi, Nordstrom   +2 more
openaire   +2 more sources

Enhancing MIMO Covert Communications via Intelligent Reflecting Surface

IEEE Wireless Communications Letters, 2022
This letter investigates the multi-input multi-output (MIMO) covert communication aided by intelligent reflecting surface (IRS) against a multi-antenna warden.
Xin Chen, Tongxing Zheng, Limeng Dong, Menghan Lin, Jinhong Yuan   +4 more
semanticscholar   +1 more source

Physical Layer Covert Communication in B5G Wireless Networks—its Research, Applications, and Challenges

Proceedings of the IEEE
Physical layer covert communication is a crucial secure communication technology that enables a transmitter to convey information covertly to a recipient without being detected by adversaries.
Y. Jiang, Liangmin Wang, Hsiao-Hwa Chen, X. Shen   +3 more
semanticscholar   +1 more source

Covert Transmission via Integrated Sensing and Communication Systems

IEEE Transactions on Vehicular Technology
Integrated Sensing and Communication (ISAC) Systems, which can support simultaneous information transmission and target detection, have been regarded as promising solutions for various emerging wireless network applications.
Jinsong Hu, Qingzhuan Lin, Shihao Yan, Xiaobo Zhou, Youjia Chen, Feng Shu   +5 more
semanticscholar   +1 more source

UAV-IRS Assisted Covert Communication: Introducing Uncertainty via Phase Shifting

IEEE Wireless Communications Letters
The line-of-sight (LoS) channels introduced by unmanned aerial vehicle (UAV) may lead to the threat of being detected, and thus fail the covert communication.
Xinying Chen, Zheng Chang, Mingqian Liu, Nan Zhao, Timo Hämäläinen, Dusist Niyato   +5 more
semanticscholar   +1 more source

Covert Communication in Ambient Backscatter Systems With Uncontrollable RF Source

IEEE Transactions on Communications, 2022
In this work, we study the covert communications in ambient backscatter systems (ABS) with uncontrollable RF source on AWGN channels. In contrast to the prior works impractically assuming the existence of a controllable RF excitation source, our work ...
Jiahao Liu, Jihong Yu, Xiaoming Chen, Rongrong Zhang, Shuai Wang, Jianping An   +5 more
semanticscholar   +1 more source

UAV-Enabled Robust Covert Communication Against Active Wardens

IEEE Transactions on Vehicular Technology
This correspondence investigates the robust unmanned aerial vehicle (UAV) enabled covert communication system with active ground wardens of collusive detection and location uncertainty.
Fangtao Yang, Chao Wang, Jun Xiong, Na Deng, Nan Zhao, Yonghui Li   +5 more
semanticscholar   +1 more source

RIS Empowered Near-Field Covert Communications

IEEE Transactions on Wireless Communications
This paper studies an extremely large-scale reconfigurable intelligent surface (XL-RIS) empowered covert communication system in the near-field region. Alice covertly transmits messages to Bob with the assistance of the XL-RIS, while evading detection by
Jun Liu, Gang Yang, Yuanwei Liu, Xiangyun Zhou   +3 more
semanticscholar   +1 more source

Understanding covert recognition

Cognition, 1991
An implementation of Bruce and Young's (1986) functional model of face recognition is used to examine patterns of covert face recognition previously reported in a prosopagnosic patient, PH. Although PH is unable to recognize overly the faces of people known to him, he shows normal patterns of face processing when tested indirectly.
A M, Burton, A W, Young, V, Bruce, R A, Johnston, A W, Ellis   +4 more
openaire   +2 more sources