Publicaciones

Affichage de 5371 à 5380 sur 16055

COMM

Development an algorithm of UWB short range radar (UWB-SRR) for cyclist protection

Rahmad Sadli, Yassin El Hillali, Atika Rivenq, Charles Tatkeu

8ème Edition Franco-Belge du Mardi des Chercheurs, MdC 2017, Mar 2017, Mons, Belgium. ⟨hal-03583056⟩

THESE

Architectures cross-layer PHY/MAC pour réduire l'effet de blocage de réception dans les réseaux véhiculaires ad-hoc, Cross-layer designs PHY/MAC for receiver blocking problem in vehicular ad-hoc networks

Basma Bouraoui

Le protocole MAC du standard IEEE 802.11p dédié aux réseaux véhiculaires interdit les transmissions simultanées dans une même zone de détection afin d’éviter d’éventuelles interférences entre les véhicules voisins. Cette interdiction entraîne un blocage temporaire de réception de données, ce qui..., The MAC protocol IEEE 802.11p, dedicated to vehicular ad-hoc networks VANETs, prohibits simultaneous transmissions in the same detection area, in order to avoid interference between neighboring vehicles. This prohibition causes a temporary data reception blocking, which reduces the network...

Traitement du signal et de l'image [eess.SP]. Université de Valenciennes et du Hainaut-Cambresis; École nationale d'ingénieurs de Tunis (Tunisie), 2017. Français. ⟨NNT : 2017VALE0006⟩. ⟨tel-01722144⟩

ART

A cost-effective approach for spectrum sensing using beamforming

Kais Bouallegue, Iyad Dayoub, M Gharbi, Kaïs Hassan

Spectrum sensing (SS) is one of the principal challenges on which the mobile communication is based on. Identifying the available frequency bands, also called white spaces, is the main issue. A novel blind approach for SS in the narrowband context is proposed in order to improve the signal...

Physical Communication, 2017, 22, pp.1-8. ⟨10.1016/j.phycom.2016.11.001⟩. ⟨hal-03383662⟩

ART

Noncontact Ultrasonic Nondestructive Techniques: State of the Art and Their Use in Civil Engineering

Mariusz Kaczmarek, Bogdan Piwakowski, Radoslaw Drelich

Ultrasonic noncontact methods of testing civil engineering materials in air, where both transmission of waves into materials and reception of signals are contactless, are reviewed. A short history and technical details of noncontact methods related to generation, reception, and transmission of...

Journal of Infrastructure Systems, 2017, 23 (1), ⟨10.1061/(ASCE)IS.1943-555X.0000312⟩. ⟨hal-03585550⟩

ART

Modeled optical properties of SiGe and Si layers compared to spectroscopic ellipsometry measurements

C. Kriso, F. Triozon, C. Delerue, L. Schneider, F. Abbate, E. Nolot, D. Rideau, Y.-M. Niquet, G. Mugny, C. Tavernier

Solid-State Electronics, 2017, 129, pp.93-96. ⟨10.1016/j.sse.2016.12.011⟩. ⟨hal-02906816⟩

REPORT

Portance contrôlée pour vol efficace d'un insecte artificiel

Sébastien Grondel

La nature est constituée d'un éventail d'espèces animales offrant des moyens de locomotion terrestres, sous-marins et aériens prometteurs, aussi les recherches sur les systèmes bio-inspirés ont-elles fait l'objet de beaucoup d'attention dans la dernière décennie. Parmi les...

[Contrat] UPHF. 2017. ⟨hal-03591291⟩

ART

Anomalous DC and RF behavior of virgin AlGaN/AlN/GaN HEMTs

Hector Sanchez-Martin, Oscar Garcia-Perez, Susana Pérez, Philippe Altuntas, Virginie Hoel, Stephanie Rennesson, Yvon Cordier, Tomás González, Javier Mateos, Ignacio Íñiguez-De-La-Torre

The performance of gallium nitride transistors is still limited by technological problems often related to defects and traps. In this work, virgin AlGaN/AlN/GaN HEMTs exhibiting an anomalous DC behavior accompanied by frequency dispersion in the microwave range, both in the transconductance and...

Semiconductor Science and Technology, 2017, 32 (3), 035011, 8 p. ⟨10.1088/1361-6641/aa5473⟩. ⟨hal-03270095⟩