Publications

• Article dans une revue

Channel correlation-based approach for feedback overhead reduction in massive MIMO

Frédéric Challita, Pierre Laly, Marwan Yusuf, Emmeric Tanghe, Wout Joseph, Pierre Degauque, M. Lienard, Davy Gaillot

For frequency-division duplex multiple-input-multiple-output (MIMO) systems, the channel state information at the transmitter is usually obtained by sending pilots or reference signals from all elements of the antenna array. The channel is then estimated by the receiver and communicated back to the…

IEEE Antennas and Wireless Propagation Letters, 2019, 18 (12), pp.2478-2482. ⟨10.1109/LAWP.2019.2940829⟩. ⟨hal-03133317⟩

• Communication dans un congrès

Optomechanics: a key towards next-generation experiments in atomic force microscopy?

Lucien Schwab, Pierre Allain, Didier Theron, Marc Faucher, Benjamin Walter, Sébastien Hentz, Guillaume Jourdan, Ivan Favero, Bernard Legrand

Atomic Force Microscopy (AFM) is a versatile and ubiquitous technique based on a resonating tip probe that interacts with the sample to be analysed in terms of topography and mechanical properties. Next-generation investigations in molecular biophysics like protein folding/unfolding, receptor-…

International Conference on Quantum Metrology and Sensing, Dec 2019, Paris, France. ⟨hal-02407634⟩

• Communication dans un congrès

FPGA Implementation of GPS - L5 Adaptive Acquisition

Kamel Benachenhou, Mohamed-Laid Bencheikh, Abdelmalik Taleb-Ahmed

This paper deals with the implementation of an adaptive acquisition stage in a global navigation satellite - GNSS - receiver with a pilot and data channel in case of GNSS L5 signal. Adaptive acquisition decides on GNSS signal presence or absence by comparing a cell under test with an adaptive…

5th International Conference on Computer Science and Information Technology, CSTY 2019, Nov 2019, Dubai, United Arab Emirates. pp.97-109, ⟨10.5121/csit.2019.91409⟩. ⟨hal-03572207⟩

• Communication dans un congrès

Temperature effect on ZnGe_xSn_1-xN₂/GaN multiwell quantum solar cells

Abdelmoumene Laidouci, Abdelkader Aissat, Jean-Pierre Vilcot

• Thèse

High resolution nc-AFM and KPFM imaging of molecular assemblies at low temperature, Imagerie à haute résolution des assemblages moléculaires par nc-AFM et KPFM à basse température

Natalia Turek

The progress of non-contact Atomic Force Microscopy (nc-AFM) in the last decade enabled studying the structural and electronic properties of molecules at the submolecular scale. The process of tip functionalization relying in attaching single atoms or molecules to the tip apex demonstrated an…, Le progrès important de la microscopie à force atomique sans contact (nc-AFM) au cours de la dernière décennie a permis d'étudier les propriétés structurelles et électroniques des molécules à l'échelle sub-moléculaire. Le processus de fonctionnalisation de la pointe, qui consiste à…

Micro and nanotechnologies/Microelectronics. Université de Lille, 2019. English. ⟨NNT : 2019LILUI106⟩. ⟨tel-03623324⟩

• Article dans une revue

Setting Carriers Free: Healing Faulty Interfaces Promotes Delocalization and Transport in Nanocrystal Solids

Willem Walravens, Eduardo Solano, Filip Geenen, Jolien Dendooven, Oleg Gorobtsov, Athmane Tadjine, Nayyera Mahmoud, Patrick Peiwen Ding, Jacob Ruff, Andrej Singer, Günther Roelkens, Christophe Delerue, Christophe Detavernier, Zeger Hens

Superlattices of epitaxially connected nanocrystals (NCs) are model systems to study electronic and optical properties of NC arrays. Using elemental analysis and structural analysis by in situ X-ray fluorescence and grazing-incidence small-angle scattering, respectively, we show that epitaxial…

ACS Nano, 2019, 13 (11), pp.12774-12786. ⟨10.1021/acsnano.9b04757⟩. ⟨hal-02517025⟩

• Communication dans un congrès

[Invited] Nanostructured materials and interfaces for sensing and drug delivery

Rabah Boukherroub

Workshop CNRS-A.N., Frumkin Institute of Physical Chemistry and Electrochemistry, Nov 2019, Moscow, Russia. ⟨hal-04619278⟩

• Thèse

Caractérisation et modélisation de composants GaN pour la conception de convertisseurs statiques haute fréquence, Characterization and modeling of GaN power devices for high freuency power converters design

Loris Pace

La montée en fréquence de commutation des transistors de puissance à base de Nitrure de Gallium (GaN) présente une avancée technologique conduisant à la réduction de la taille, du poids et du volume des systèmes de conversion de l’énergie. En effet, les propriétés physiques des transistors de type…, The high frequency operation of GaN power transistors is of great interest in order to reduce size, weight and volume of power converters. Indeed, GaN HEMT power transistors show very good physical properties for the development of high frequency power converters. Within the constant rise of the…

Micro et nanotechnologies/Microélectronique. Université de Lille, 2019. Français. ⟨NNT : 2019LILUI078⟩. ⟨tel-03624112⟩

• Poster de conférence

Deep convolutional neural networks for detection and classification of tumors in mammograms

Kadda Djebbar, Malika Mimi, Khadidja Berradja, Abdelmalik Taleb-Ahmed

Automatic detection and classification of the masses in mammograms are still a big challenge and play a crucial role to assist radiologists for accurate diagnosis. In this paper, we propose a novel Computer-Aided Diagnosis (CAD).System based on one of the regional deep learning techniques, a ROI-…

6th International Conference on Image and Signal Processing and their Applications (ISPA 2019), Nov 2019, Mostaganem, Algeria. IEEE, pp.1-7, ⟨10.1109/ISPA48434.2019.8966895⟩. ⟨hal-03573002⟩

• Communication dans un congrès

Staistical features extraction in wavelet domain for texture classification

Soraya Zehani, Abdeldjalil Ouahabi, Malika Mimi, Abdelmalik Taleb-Ahmed

This paper presents a new approach for texture classification generalizing a well-known statistical features combining the fractal analysis by means of fractal dimension (FD) with the selection first and second order statistics features in the spatial and wavelet domain. The objective of our paper…

6th International Conference on Image and Signal Processing and their Applications (ISPA 2019), Nov 2019, Mostaganem, Algeria. pp.1-5, ⟨10.1109/ISPA48434.2019.8966865⟩. ⟨hal-03572493⟩