Results 91 to 100 of about 2,289 (258)

Rotatable Antenna-Enabled Covert Communication

IEEE Wireless Communications Letters
Unlike conventional fixed-antenna architectures, rotatable antenna (RA) has shown great potential in enhancing wireless communication performance by exploiting additional spatial degrees of freedom (DoFs) in a cost-effective manner. In this letter, we propose a novel RA-enabled covert communication system, where an RA array-based transmitter (Alice ...
Qi Dai, Beixiong Zheng, Yanhua Tan, Weidong Mei, Shiqi Gong, Jie Tang 0002, Chengwen Xing   +6 more
openaire   +4 more sources

Semantic Modeling in Materials Science and Engineering With Platform MaterialDigital Core Ontology 3.0

Advanced Engineering Materials, EarlyView.
The community‐driven Platform MaterialDigital Core Ontology (PMDco) 3.0 is introduced as a Basic Formal Ontology‐aligned semantic backbone for the processing–structure–properties paradigm in Materials Science and Engineering. Modular engineering, automated releases, and validation workflows are highlighted and key semantic patterns for materials ...
Markus Schilling, Philipp von Hartrott, Jörg Waitelonis, Thomas Hanke, Henk Birkholz, Hossein Beygi Nasrabadi, Khashayar Razghandi, Kamilla Zaripova, Felix Thonagel, Fabian Neuhaus, Martin Glauer, Lars Vogt, Harald Sack, Lutz Mädler, Bernd Bayerlein, Chris Eberl   +15 more
wiley   +1 more source

Physical layer security and covert communication in UAV-ISAC networks: A comprehensive survey

Journal of King Saud University: Computer and Information Sciences
Under the rapid development of the low-altitude economy, while unmanned aerial vehicle-assisted integrated sensing and communication (UAV-ISAC) significantly enhances perception accuracy and communication reliability in dynamic network environments, it ...
Haowen Yang, Yuan Liu, Xuran Li, Zhiquan Bai, Liang Yang, Gaofeng Pan, Hongwu Liu   +6 more
doaj   +1 more source

Time-Division Multiplexed Optical Covert Communication System Based on Gain-Switched Optical Pulses

Photonics
In optical covert communication systems based on gain-switched distributed feedback semiconductor lasers, the trade-off between the modulation frequency and the spectral imperceptibility limits the bit rate of the secure channel.
Dong Liu, Yongliang Yin, Mingyu Cui, Zhanqi Liu, Huatao Zhu   +4 more
doaj   +1 more source

Continuous noise covert transmission scheme based on QCSK

Tongxin xuebao, 2022
The existing embedded scheme requires far lower transmission power of the covert system than that of the host system, and thus decreasing the reliability of covert transmission.To figure out the above limitations, a continuous noise covert communication ...
Ying HUANG, Zehan WAN, Jing LEI, Ke LAI
doaj  

On Performance of FAS-Aided Covert Communications

2025 IEEE 101st Vehicular Technology Conference (VTC2025-Spring)
This paper investigates the impact of deploying the fluid antenna system (FAS) on the performance of covert communications. In particular, we focus on a scenario where a transmitter seeks to covertly communicate with a receiver, while a warden attempts to detect the transmission. Both the receiver and the warden are assumed to utilize planar FAS.
Farshad Rostami Ghadi, Masoud Kaveh, Riku Jäntti, Francisco Javier López-Martínez   +3 more
openaire   +2 more sources

Fabrication Routes for Ionic Conducting Fiber Strain Sensors

Advanced Engineering Materials, EarlyView.
Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw, Zhanhong Yang, Anne Ladegaard Skov, Magdalena Skowyra   +3 more
wiley   +1 more source

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

Advanced Engineering Materials, EarlyView.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin, Émeline Cournède, Jens Krarup, Michael Lesa, Foyzul Hasan, Amandine Séné, Arnaud Lahouati, David Benhaiem, Jérémie‐Luc Sanchez, Simon Delacroix, Thierry Gacoin, Fabienne Testard, Damien Faivre, David Carriere, Corinne Chevallard, Olivier Taché, Mark A. Levenstein   +16 more
wiley   +1 more source

StegoBackoff: Creating a Covert Channel in Smart Grids Using the Backoff Procedure of IEEE 802.11 Networks

Energies
A smart grid constitutes an electrical infrastructure that integrates communication technologies to optimize electricity production, distribution, and consumption.
Geovani Teca, Marek Natkaniec
doaj   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source