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Affichage de 3451 à 3460 sur 16267

Article dans une revue

Joint modeling of received power, mean delay, and delay spread for wideband radio channels

Ayush Bharti, Ramoni Adeogun, Xuesong Cai, Wei Fan, Francois-Xavier Briol, Laurent Clavier, Troels Pedersen

We propose a multivariate log-normal distribution to jointly model received power, mean delay, and root mean square (rms) delay spread of wideband radio channels, referred to as the standardized temporal moments. The model is validated using experimental data collected from five different...

IEEE Transactions on Antennas and Propagation, 2021, 69 (8), pp.4871-4882. ⟨10.1109/TAP.2021.3060099⟩. ⟨hal-03347804⟩

Communication dans un congrès

Quadratic detection-based millimeter-wave MMIC for wireless communication and localization

Christophe Loyez, Michael Bocquet, Kamel Haddadi

This paper presents a multi-functional topology of a monolithic microwave monolithic integrated circuit (MMIC) capable of performing both wireless communications and geolocation devices. The architecture of this MMIC allows several RF functionalities such as conventional frequency heterodyning for...

2021 International Symposium on Networks, Computers and Communications (ISNCC), Session A10 - Signals and Communication Systems, Oct 2021, Dubai (virtual), United Arab Emirates. pp.1-5, ⟨10.1109/ISNCC52172.2021.9615694⟩. ⟨hal-03457159⟩

Chapitre d'ouvrage

Human Facial Age Estimation: Handcrafted Features Versus Deep Features

S.E. Bekhouche, F. Dornaika, A. Ouafi, Abdelmalik Taleb-Ahmed

In recent times, human facial age estimation topic attracted a lot of attention due to its ability to improve biometrics systems. Recently, several applications that exploit demographic attributes have emerged. These applications include: access control, re-identification in surveillance videos,...

Advances in Science, Technology and Innovation, Springer Nature, pp.31-37, 2021, ⟨10.1007/978-3-030-14647-4_3⟩. ⟨hal-03541943⟩

Communication dans un congrès

Energy-efficient 1-bit feedback NOMA in wireless networks with no CSIT/CDIT

Hajar El Hassani, Anne Savard, E Veronica Belmega

In this paper, the energy efficiency of a two-user downlink non-orthogonal multiple access (NOMA) system is investigated. We consider a stochastic time-varying channel that is unknown at the transmitter side (in state and distribution) and propose an online learning method that is energy efficient...

IEEE Statistical Signal Processing Workshop, SSP 2021, Jul 2021, Rio de Janeiro, Brazil. IoT-1, 5 p., ⟨10.1109/SSP49050.2021.9513763⟩. ⟨hal-03227273⟩

Article dans une revue

Bias Tunable Spectral Response of Nanocrystal Array in a Plasmonic Cavity

Tung Huu Dang, Angela Vasanelli, Yanko Todorov, Carlo Sirtori, Yoann Prado, Audrey Chu, Charlie Gréboval, Adrien Khalili, Herve Cruguel, Christophe Delerue, Gregory Vincent, Emmanuel Lhuillier

Nanocrystals (NCs) have gained considerable attention for their broadly tunable absorption from the UV to the THz range. Nevertheless, their optical features suffer from a lack of tunability once integrated into optoelectronic devices. Here, we show that tunable absorption with bias can be obtained...

Nano Letters, 2021, 21 (15), pp.6671-6677. ⟨10.1021/acs.nanolett.1c02193⟩. ⟨hal-03321716⟩

Communication dans un congrès

On Experimental Evaluation of Eigenvalue-based Spectrum Sensing using a Real-time SDR Testbed

Hayfa Ben Thameur, Iyad Dayoub

Spectrum sensing (SS) is one of the most challenging and prominent operation in the emerging cognitive radio (CR) technology. It is viewed as one of the most intelligent method for enhancing spectrum usage efficiency. Therefore, versatile SS techniques have been proposed in literature. In this...

2021 International Wireless Communications and Mobile Computing (IWCMC), Jun 2021, Harbin City, virtual, China. pp.1982-1987, ⟨10.1109/IWCMC51323.2021.9498884⟩. ⟨hal-03382830⟩

Communication dans un congrès

Zero on site testing of railway wireless systems: the Emulradio4Rail platforms

Marion Berbineau, Ali Sabra, Virginie Deniau, Christophe Gransart, Raul Torrego, Aitor Arriola, Inaki Val, Jose Soler, Ying Yan, Alessandro Vizzarri, Franco Mazzenga, Sofiane Kharbech, Laurent Clavier, Rédha Kassi, Juan Moreno Garcia-Loygorri

The European Train Control System (ETCS) relies today on the 2nd generation cellular system GSM-R. GSM-R obsolescence has triggered the evolution of the current European Railway Traffic Management System (ERTMS) to the Future Railway Mobile Communication System (FRMCS), under development. FRMCS...

93rd Vehicular Technology Conference (VTC2021-Spring), Apr 2021, Helsinki, Finland. ⟨10.1109/VTC2021-Spring51267.2021.9448903⟩. ⟨hal-03361485⟩

Communication dans un congrès

Numerical modeling of a nonlinear resonant vibrometry experiment for crack imaging

Vladislav Aleshin, Ravi Verma, Kevin Truyaert

In this communication we describe an original approach to numerical modeling for acoustic waves in a solid structure with a crack. The method allows us simulating the conditions of a real acoustic experiment for non-destructive testing and damage visualization. The presence of damage, for instance...

2ème colloque du GdR MecaWave, Oct 2021, Oléron, France. ⟨hal-03680788⟩

Article dans une revue

Simultaneous Hydrolysis and Detection of Organophosphate by Benzimidazole Containing Ligand-Based Zinc(II) Complexes

Gaber Mersal, Hamdy El-Sheshtawy, Mohammed Amin, Nasser Mostafa, Amine Mezni, Sarah Alharthi, Rabah Boukherroub, Mohamed Ibrahim

The agricultural use of organophosphorus pesticides is a widespread practice with significant advantages in crop health and product yield. An undesirable consequence is the contamination of soil and groundwater by these neurotoxins resulting from over application and run-off. Here, we design and...

Crystals, 2021, 11 (6), pp.714. ⟨10.3390/cryst11060714⟩. ⟨hal-03442205⟩

Article dans une revue

ESD mm-wave-circuit protection: 3-dB couplers

Marc Margalef-Rovira, Géraldine Pelletier, Vanessa Avramovic, Sylvie Lepilliet, Johan Bourgeat, Jean-Marc Duchamp, Manuel J. Barragan, Emmanuel Pistono, Sylvain Bourdel, Christophe Gaquière, Philippe Ferrari

This article presents an innovative architecture for the implementation of an electrostatic discharge (ESD) protection for millimeter-wave (mm-wave) devices. The proposed architecture is based on the use of 3-dB couplers, whose coupled outputs have been shorted to the ground node. In order to...

IEEE Transactions on Electron Devices, 2021, 68 (12), pp.5989-5994. ⟨10.1109/TED.2021.3115990⟩. ⟨hal-03371300⟩