Simultaneously Transmitting and Reflecting RIS (STAR-RIS) Assisted Multi-Antenna Covert Communication: Analysis and Optimization [PDF]
IEEE Transactions on Wireless Communications, 2023 This paper investigates the multi-antenna covert communications assisted by a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS).
Han Xiao +6 more
semanticscholar +1 more source
Sensing-Aided Covert Communications: Turning Interference Into Allies [PDF]
IEEE Transactions on Wireless Communications, 2023 In this paper, we investigate the realization of covert communication in a general radar-communication cooperation system, which includes integrated sensing and communications as a special example.
Xinyi Wang +5 more
semanticscholar +1 more source
STAR-RIS Enhanced Joint Physical Layer Security and Covert Communications for Multi-Antenna mmWave Systems [PDF]
IEEE Transactions on Wireless Communications, 2023 This paper investigates the utilization of simultaneously transmitting and reflecting RIS (STAR-RIS) in supporting joint physical layer security (PLS) and covert communications (CCs) in a multi-antenna millimeter wave (mmWave) system, where the base ...
Han Xiao +6 more
semanticscholar +1 more source
Covert Beamforming Design for Integrated Radar Sensing and Communication Systems [PDF]
IEEE Transactions on Wireless Communications, 2022 We propose covert beamforming design frameworks for integrated radar sensing and communication (IRSC) systems, where the radar can covertly communicate with legitimate users under the cover of the probing waveforms without being detected by the ...
Shuai Ma +7 more
semanticscholar +1 more source
Wireless Covert Communications Aided by Distributed Cooperative Jamming Over Slow Fading Channels [PDF]
IEEE Transactions on Wireless Communications, 2021 In this paper, we study covert communications between a pair of legitimate transmitter-receiver against a watchful warden over slow fading channels. There coexist multiple friendly helper nodes who are willing to protect the covert communication from ...
Tongxing Zheng +5 more
semanticscholar +1 more source
Performance Analysis and Optimization for Jammer-Aided Multiantenna UAV Covert Communication [PDF]
IEEE Journal on Selected Areas in Communications, 2022 Unmanned aerial vehicles (UAVs) have attracted a lot of research attention because of their high mobility and low cost in serving as temporary aerial base stations (BSs) and providing high data rates for next-generation communication networks. To protect
Hongyang Du +5 more
semanticscholar +1 more source
JTCVS Open, 2020 Objectives: Covert stroke is a complication of coronary artery bypass graft surgery that is increasingly recognized as a serious problem. In noncardiac surgery settings, covert stroke is associated with the development of delirium, long-term cognitive ...
Austin Browne, PhD +8 more
doaj +1 more source
Dolphin Sounds-Inspired Covert Underwater Acoustic Communication and Micro-Modem
Sensors, 2017 A novel portable underwater acoustic modem is proposed in this paper for covert communication between divers or underwater unmanned vehicles (UUVs) and divers at a short distance.
Gang Qiao +3 more
doaj +1 more source
An overt chemical protective garment reduces thermal strain compared with a covert garment in warm-wet but not hot-dry environments [PDF]
, 2017 © 2017 The Authors. Published by Frontiers Media. This is an open access article available under a Creative Commons licence. The published version can be accessed at the following link on the publisher’s website: https://doi.org/10.3389/fphys.2017 ...
Amos +40 more
core +3 more sources
IET Communications, 2021 This paper studies multi‐antenna covert communication exploiting a public communication link over the wireless fading channel. In particular, a relatively practical covert communication scenario is considered for the first time, where a warden with ...
Yuda Lin +3 more
doaj +1 more source