Results 261 to 270 of about 3,510,197 (304)

A Blockchain-Based Secure Covert Communication Method via Shamir Threshold and STC Mapping

IEEE Transactions on Dependable and Secure Computing
Covert communication is a crucial technology that hides information in the redundant structure of the file and transmission through public channel to achieve the secure delivery of information.
Pei-Hong Zhang, Qingfeng Cheng, Mingliang Zhang, Xiangyang Luo   +3 more
semanticscholar   +1 more source

Robust Beamforming Design for Integrated Sensing and Covert Communication Systems

IEEE Wireless Communications Letters
This letter investigates the robust beamforming design for an integrated sensing and covert communications system, where the transmitter (Alice) performs some sensing task and simultaneously communicates with multiple legitimate users (Bobs) covertly ...
Xingyu Zhao, Weicao Deng, Min Li, Minjian Zhao   +3 more
semanticscholar   +1 more source

Covert Beamforming Design for Cooperative NOMA-Assisted Integrated Sensing and Communication Systems

IEEE Transactions on Vehicular Technology
In this paper, we consider covert communication in a cooperative non-orthogonal multiple access (NOMA)-assisted integrated sensing and communication (ISAC) system, where the ISAC relay can communicate with the covert user under the cover of probing ...
Haoyang Li, Zhengju Yang, Peng Xu, Gaojie Chen, Shuai Ma, D. B. Costa   +5 more
semanticscholar   +1 more source

Robust Transmission Design for Covert Satellite Communication Systems With Dual-CSI Uncertainty

IEEE Internet of Things Journal
In this article, we investigate a novel covert transmission scheme for satellite communication systems. Specifically, the satellite employs a rate-splitting multiple access technique to covertly transmit messages to multiple users and simultaneously ...
Huaiqi Jia, Ying Wang, Wen Wu, Jun Yuan
semanticscholar   +1 more source

Multi-Hop UAV Relay Covert Communication: A Multi-Agent Reinforcement Learning Approach

2024 International Conference on Ubiquitous Communication (Ucom)
The unmanned aerial vehicle (UAV) network, due to its line-of-sight (LoS) communication characteristics, is highly susceptible to be eavesdropped. Covert communication is studied to protect the communication behaviour.
Hengzhi Bai, Haichao Wang, Jiatao Du, Rongrong He, Guoxin Li, Yuhua Xu   +5 more
semanticscholar   +1 more source

UAV-Enabled Communication Strategy Against Detection in Covert Communication With Asymmetric Information

IEEE Transactions on Wireless Communications
Unmanned aerial vehicles (UAVs) are viewed as a key component of 5G, 6G and beyond wireless networks to receive, store and forward information. Benefiting from swift deployment, low cost and high mobility, it has become a promising trend to leverage the ...
Wen Tian, Jifei Du, Xiaopeng Ji, Miao Du, Guangjie Liu, Zhu Han   +5 more
semanticscholar   +1 more source

Covert Communication in Intelligent Reflecting Surface Assisted Networks With a Friendly Jammer

IEEE Transactions on Vehicular Technology
In this article, we investigate covert communication in intelligent reflecting surface (IRS) assisted networks with a friendly jammer where the jammer radiates random power jamming signals to confuse Willie in detecting the existence of the communication
Justin Kong, F. Dagefu, Ji-Ae Choi, R. Aggarwal, P. Spasojevic   +4 more
semanticscholar   +1 more source

RIS-NOMA Assisted Covert Transmission for Integrated Sensing and Communication With Statistical CSI

IEEE Wireless Communications Letters
This letter proposes a covert beamforming framework for a RIS-NOMA assisted integrated sensing and communication system under statistical CSI. Specifically, the dual functional base station transmits both public and covert signal to users in NOMA ...
Chao Yu, Chenye Feng, Wenwu Xie, Peng Zhu, Xin Peng, Liang Yang   +5 more
semanticscholar   +1 more source

On covert communication in advertising

Journal of Pragmatics, 2004
Abstract This paper investigates the notion of covert communication in advertisements. I begin by discussing the role of intentions in communication, outlining the relevance-theoretic view. Taking the work of Keiko Tanaka (1994/1999. Advertising Language: A Pragmatic Approach to Advertisements in Britain and Japan.
openaire   +1 more source

RIS-Segmented Symbiotic Covert Cooperative Backscatter Communication Systems

IEEE Transactions on Vehicular Technology
In this work, we delve into the covertness performance of the reconfigurable intelligent surface (RIS) symbiotic ambient backscatter communication (AmBC) systems. The RIS is partitioned into backscatter device (BD) zone and enhance transmission (ET) zone
Musen Liu, Hongxing Peng, Peichan Zhang, Ming Zeng, Zhengyu Zhu, Alexandros–Apostolos A. Boulogeorgos, K. Dev, Xingwang Li   +7 more
semanticscholar   +1 more source