Publications

• COMM

Performance théorique d'un neurone à spikes Integrate-and-Fire

Anne Savard, Laurent Clavier, Francois Danneville, Christophe Loyez

Ce papier se concentre sur les performances théoriques d'un détecteur neuro-inspiré pour une communication numérique où le signal d'entrée est inférieur au seuil d'activation du neurone, rendant le bruit crucial pour la détection. Nous caractérisons dans un premier temps la…, This paper focuses on the theoretical performance of a neuro-inspired digital communication, where the input signal is below the activation threshold of the neuron, making the noise crucial for the detection. We first derive the error probability of a neuro-inspired detector build upon a single…

GRETSI 2019 - XXVIIème Colloque francophone de traitement du signal et des images, Aug 2019, Lille, France. ⟨hal-02275927⟩

• COMM

Allocation de puissance pour les réseaux radio cognitifs à relais

Anne Savard, Elena Veronica Belmega

Ce papier porte sur un problème d'allocation de puissance pour un réseau radio cognitif composé d'une paire utilisateur/destination primaire et secondaire ainsi que d'un relais aidant la communication entre l'utilisateur opportuniste et sa destination. Le système secondaire ne…, This paper addresses a power allocation problem in a relay-aided cognitive network that is composed by a primary and secondary source/destination pair and where a relay helps the communication of the secondary network. The optimal power allocation is derived under a minimum quality of service (QoS…

GRETSI 2019 - XXVIIème Colloque francophone de traitement du signal et des images, Aug 2019, Lille, France. ⟨hal-02275877⟩

• COMM

Méthodes de prétraitement pour les systèmes de codage vidéo linéaire basé SoftCast

Anthony Trioux, François-Xavier Coudoux, Patrick Corlay, M Gharbi

Un nouveau schéma de codage vidéo linéaire dénommé SoftCast a démontré ces dernières années un potentiel élevé pour la diffusion de vidéo sur des canaux sans-fil variant dans le temps. Particulièrement utile en situation de broadcast, il permet d’éviter les problèmes rencontrés dans les systèmes de…, An original wireless video transmission scheme called SoftCast has been recently proposed to deal with the issues encounteredin conventional wireless video broadcasting systems such as cliff effect [1]. In [2], we analyzed and compared two simple pixel-preprocessing methods that help to increase…

XXVIIème Colloque Francophone de Traitement du Signal et des Images, GRETSI 2019, Aug 2019, Lille, France. ⟨hal-02423792⟩

• COMM

On the Validity of Isotropic Complex α-Stable Interference Models for Interference in the IoT

Ce Zheng, Malcolm Egan, Laurent Clavier, Gareth W. Peters, Jean-Marie Gorce

GRETSI 2019 - XXVIIème Colloque francophone de traitement du signal et des images, Aug 2019, Lille, France. pp.1-4. ⟨hal-02263787⟩

• COMM

Two-temperature model for the thermoacoustic sound generation in porous materials

Pierre Guiraud, Stefano Giordano, Olivier Bou Matar, Philippe Pernod, Raphael Lardat

Congrès Français de Mécanique 2019, Aug 2019, Brest, France. ⟨hal-02338056⟩

• COMM

Canal à deux relais utilisant Compress-and-Forward

Anne Savard, Laurent Clavier

Ce papier propose une étude d'un canal bi-directionnel où deux relais aident deux utilisateurs à échanger leurs données. Nous nous concentrons sur le cas où l'un des deux relais utilise le schéma Compress-and-Forward (CF) alors que l'autre relais peut utiliser soit CF soit Decode-and…

GRETSI 2019 - XXVIIème Colloque francophone de traitement du signal et des images, Aug 2019, Lille, France. ⟨hal-02275880⟩

• ART

Transport and storage dynamics of 30% In-rich InGaN/GaN MQW LED p-i-n structure

Orhan Özdemir, Kutsal Bozkurt, Neslihan Ayarci Kuruoğlu, Hanife Baş, Bandar Alshehri, Karim Dogheche, Quentin Gaimard, Abderrahim Ramdane, El Hadj Dogheche

DC and AC electrical characteristics of an InGaN/GaN multi-quantum well light emitting diode based on PIN structures were investigated through temperature-dependent current-voltage (I-v-T) and admittance-temperature-frequency (Y-T-ω) measurements within 80-375 K temperature interval. Multi-step…

Journal of Physics D: Applied Physics, 2019, 52 (34), pp.345302. ⟨10.1088/1361-6463/ab1f9b⟩. ⟨hal-03136453⟩

• ART

Manipulating Coherent Light-Matter Interaction: Continuous Transition between Strong Coupling and Weak Coupling in MoS2 Monolayer Coupled with Plasmonic Nanocavities

Songyan Hou, L.Y.M. Tobing, Xingli Wang, Zhenwei Xie, Junhong Yu, Jin Zhou, Daohua Zhang, Cuong Dang, Philippe Coquet, Beng Kang Tay, M.D. Birowosuto, Edwin Hang Tong Teo, Hong Wang

Strong interactions between surface plasmons in ultracompact nanocavities and excitons in 2D materials have attracted wide interests for its prospective realization of polariton devices at room temperature. Here, a continuous transition from weak coupling to strong coupling between excitons in…

Advanced Optical Materials, 2019, 7 (22), pp.1900857. ⟨10.1002/adom.201900857⟩. ⟨hal-03091461⟩

• POSTER

Numerical study of the reflected elastic waves using Rayleigh diffraction integral

Nadir Maghlaoui, Hakim Djelouah, Assia Oudina, Mohamed Ourak, Farouk Benmeddour

In this work, the transient ultrasonic waves radiated by a linear phased array transducer in a liquid then reflected at a liquid solid interface is studied. A model based on the Rayleigh integral is used where the reflection at the plane interface is considered by using the reflection coefficients…

2nd International Conference on Numerical Modelling in Engineering, NME 2019, Aug 2019, Beijing, China. , 657 (1), pp.012014. ⟨hal-03594276⟩

• ART

Acoustic Tweezers for Particle and Fluid Micromanipulation

Michael Baudoin, Jean-Louis Thomas

The contactless collective or selective manipulation of microscopic objects is powerfully enabled by acoustical tweezers. Trapping is achieved without pre-tagging with several order of magnitude larger forces at same input power than optical tweezers, limiting spurious heating and enabling damage-…

Annual Review of Fluid Mechanics, 2019, 52 (1), ⟨10.1146/annurev-fluid-010719-060154⟩. ⟨hal-02332846⟩