Publications

• COMM

A Source and Drain Transient Currents Technique for Trap Characterisation in AlGaN/GaN Based Devices

Steven Duffy, Brahim Benbakhti, Wei Zhang, Karol Kalna, Khaled Ahmeda, Maher, Hassan, Ali Soltani

47th European Solid-State Device Research Conference (ESSDERC), Sep 2017, Leuven, Belgium. ⟨hal-02310067⟩

• COMM

Importance of buffer configuration in GaN HEMTs for high microwave performance and robustness

Romain Pécheux, Riad Kabouche, Ezgi Dogmus, Astrid Linge, Etienne Okada, Malek Zegaoui, F Medjdoub

We report on a comparison of the ultrathin (sub-10 nm barrier thickness) AlN/GaN heterostructure using two types of buffer layers: 1) carbon doped GaN high electron mobility transistors (HEMTs) and 2) double heterostructure field effect transistor (DHFET). It is observed that the carbon doped HEMT…

ESSDERC 2017 - 47th IEEE European Solid-State Device Research Conference (ESSDERC), Sep 2017, Leuven, Belgium. pp.228-231, ⟨10.1109/ESSDERC.2017.8066633⟩. ⟨hal-03028460⟩

• COMM

Acoustic energy transfer by friction induced vibrations

Giovanna Lacerra, Francesco Massi, Eric Chatelet, Emmanuel Moulin

Friction-induced vibrations are often investigated for their unwanted effects, such as surface wear and dynamic instabilities. This article focuses on the exploitation of friction-induced vibrations to transfer the energy between different acoustic fields by an interface under frictional contact.…

X International Conference on Structural Dynamics, EURODYN 2017, Sep 2017, Rome, Italy. ⟨hal-03593863⟩

• COMM

Numerical and experimental demonstration of the electrical Bragg band gaps in piezoelectric plates with a periodic array of electrodes

Clement Vasseur, Charles Croënne, Bertrand Dubus, Jerome O. Vasseur, Anne-Christine Hladky, Claude Prevot, Paolo Martins, Mai Pham-Thi

A piezoelectric plate, poled along its thickness, that supports on its top surface a periodic grating of electrodes is considered. If wave propagation is assumed along the length of the plate, one demonstrates that an electrical Bragg band gap can be observed, depending on the electrical boundary…

2017 IEEE International Ultrasonics Symposium (IUS), Sep 2017, Washington, United States. paper 6H-2, 4 p., ⟨10.1109/ULTSYM.2017.8092676⟩. ⟨hal-03299385⟩

• COMM

AlN/ZnO/LiNbO₃ packageless structure as a low-profile sensor for on-body applications

Cécile Floer, Mohammed Moutaouekkil, Harshad Mishra, Sami Hage-Ali, Stefan Mc Murtry, Philippe Pigeat, Omar Elmazria, Florian Bartoli, Thierry Aubert, Sergei Zhgoon, Olivier Bou Matar, Abdelkrim Talbi

Surface acoustic wave (SAW) devices are widely used as filters or resonators for mobile communications or radars applications. However, the velocity of the wave can be very sensitive to physical parameters of the environment (temperature, strain...), which allows the device to be used as a sensor.…

• COMM

SIMO communication with impulsive and dependent interference - the Copula receiver

Emilie Soret, Laurent Clavier, Gareth W. Peters, Ido Nevat, François Septier

In this paper, we propose solutions for modelling dependence in impulsive noises. We use the copula framework that allows to represent the upper and lower tail dependencies that can not be captured by classical correlation (which, besides, is not adapted to α-stable distributions often considered…, Dans ce papier, nous proposons une méthode pour modéliser la dépendance entre des bruits impulsifs. Nous utilisons la notion de copule ce qui nous permet de représenter les dépendances d'upper et de lower tail, ce qui n'est pas le cas des coefficients de corrélation classique (qui de plus…

GRETSI 2017 - XXVIème Colloque francophone de traitement du signal et des images, Sep 2017, Juan-les-Pins, France. ⟨hal-01678984⟩

• POSTER

Prétraitement perceptuel pour l’optimisation du codage HEVC

Eloïse Vidal, François-Xavier Coudoux, Patrick Corlay, Christine Guillemot

Actes du XXVIème Colloque GRETSI, Sep 2017, Juan-les-Pins, France. ⟨hal-03582751⟩

• COMM

Codage basé sur les réseaux de points pour le canal à relais Gaussien mono- et bidirectionnel avec bruits corrélés

Anne Savard, Claudio Weidmann

Ce papier porte sur deux modèles de communications coopératives, le canal à relais et le canal bidirectionnel Gaussien, lorsque les bruits au relais et à la(aux) destination(s) sont corrélés. Un codage basé réseaux de points est proposé pour atteindre la région de rendement de Compress-and-Forward…

GRETSI 2017 - XXVIème Colloque francophone de traitement du signal et des images, Sep 2017, Juan-les-Pins, France. ⟨hal-01900968⟩

• COMM

Optimisation du modèle autoregressif AR(2) pour l'estimation d'un canal radio-mobile de Rayleigh-Jakes à évanouissement plat

Ali Houssam El Husseini, Eric Pierre Simon, Laurent Ros

This paper deals with the estimation of the flat fading Rayleigh channel with Jakes' Doppler spectrum (model due to R.H. Clarke in 1968), frequency non-selective and slow fading variations. A common method of the literature consists in approximating the variations of the channel by an auto-…, Nous traitons l'estimation d'un canal de communication radio-mobile aléatoire selon un modèle de Rayleigh à spectre Doppler de Jakes (modèle dû à R.H. Clarke en 1968), non-sélectif en fréquence et à variations lentes à l'échelle du temps symbole. Une méthode classique de la…

GRETSI 2017 - XXVIème Colloque francophone de traitement du signal et des images, Sep 2017, Juan-Les-Pins, France. ⟨hal-01587888⟩

• COMM

Hybrid model for fast EM simulation of wireless interferences in railway system

Ulrich Biaou, Sara Iben Jellal, Michael Bocquet, S. Baranowski, Samuel Leman, Frédéric Hoëppe

An original ElectroMagnetic simulation methodology based on the hybridization of deterministic and statistical models is proposed to study wireless signal propagation inside a train. The coupling between the EM methods is performed with the Kron's networks formalism to significantly optimize…

2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE, Sep 2017, Angers, France. pp.1-6, ⟨10.1109/EMCEurope.2017.8094711⟩. ⟨hal-03579772⟩