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Communication dans un congrès

A Tensor-Based Modulation Scheme with Hybrid Optimization for Unsourced Random Access

Ala Baccar, Alexis Decurninge, Sofiane Kharbech, Rima Khouja, Eric Pierre Simon, Joumana Farah

<div><p>This paper extends the idea of tensor-based modulation (TBM) for unsourced random access by introducing a new small sub-constellation, enabling a hybrid continuous-discrete optimization approach on the tensor factors. This approach enhances the detection process and extends the…

EUSIPCO 2025, Sep 2025, Palerme (Italie), Italy. ⟨hal-05136805⟩

Communication dans un congrès

Effect of High Temperature RF Stress on the Trapping Behavior of Carbon Doped AlN/GaN/AlGaN HEMTs

Lyes Ben-Hammou, François Grandpierron, Elodie Carneiro, Katir Harrouche, Etienne Okada, Gilles Patriarche, Farid Medjdoub

This study investigates the impact of short-term hightemperature operating life (HTOL) reliability testing on the trapping behavior and power performance of carbon-doped AlN/GaN/AlGaN High Electron Mobility Transistors (HEMTs). HTOL stress can lead to significant degradation in key performance…

2025 IEEE International Reliability Physics Symposium (IRPS 2025), Mar 2025, Monterey, CA, United States. ⟨10.1109/irps48204.2025.10983377⟩. ⟨hal-05344709⟩

Article dans une revue

Nonlinear modeling of AlN/GaN HEMT accounting for self-biasing effect during RF step stress: analysis and hard-SOA

Nasri Said, Damien Saugnon, K. Harrouche, F Medjdoub, N. Labat, N. Malbert, Jean-Guy Tartarin

In this study, we investigate the non-linear (NL) behavior of AlN/GaN HEMT technologies under gain compression when submitted to 10 GHz single-tone RF-step stress, which is crucial for millimetre-wave power application robustness. We evaluate AlN/GaN transistors, targeting high-power amplifiers…

Microelectronics Reliability, 2025, 169, pp.115742. ⟨10.1016/j.microrel.2025.115742⟩. ⟨hal-05065556⟩

Article dans une revue

Drying Behavior of Flax Stems at Different Degrees of Dew Retting Under Simulated Rainfall: Implications for Smart Agriculture and Sensor Development

Ali Reda, Lionel Buchaillot, Steve Arscott

Dew retting of flax stems is a key agricultural process which facilitates fiber extraction from parent stems. If sensors are to be developed to monitor the degree of retting for optimal fiber extraction, then stem characteristics such as water uptake and loss need to be accurately known. Here, the…

Agriculture, 2025, 15 (4), pp.395. ⟨10.3390/agriculture15040395⟩. ⟨hal-04960263⟩

Communication dans un congrès

Ultra-thin normal-shear-coupled meta-barrier for low-frequency underwater sound insulation

Marco Miniaci, Vinicius Fonseca Dal Poggetto

Underwater noise pollution from anthropogenic activities, such as offshore oil and gas exploration, poses significant threats to marine life. A common mitigation strategy involves enclosing primary noise sources within physical barriers to reduce noise levels in surrounding environments. Underwater…

CFA 2025 - 17e Congrès Français d'Acoustique, Société Française d'Acoustique (SFA), Apr 2025, Paris, France. ⟨hal-05366168⟩

Communication dans un congrès

Integrated Optoelectronic Mixer with a Micromachined Silicon Coplanar Probe for Wideband On-Wafer Testing of Millimeter-Wave and THz Components

S. Islam, L. Kherouz, Victor Merupo, L. Frein, S. Bouhier, Flavie Braud, Christophe Boyaval, Christophe Coinon, J.-F. Lampin, Y Deblock, Sophie Eliet, E. Okada, Sylvie Lepilliet, Q. Fornasiero, G. Di Gioia, G. Loas, S. Arscott, E Peytavit

We present the design and fabrication of a wideband signal analysis probe system for on-wafer testing millimeter-wave and THz electronic components. This probe system is based on the development of an optoelectronic mixer based on a low-temperature-grown GaAs microcavity photoconductor integrated…

2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Aug 2025, Helsinki, Finland. pp.1-2, ⟨10.1109/irmmw-thz61557.2025.11319740⟩. ⟨hal-05489566⟩

Communication dans un congrès

Ondes élastiques topologiquement guidées pour l'haptique de surface

Massaï Hatoumva, Charles Croënne, Bertrand Dubus, Arthur Paté, M. Miniaci, Florian Allein, Frédéric Giraud

<div><p>Les cristaux phononiques topologiques marquent une avancée majeure pour le guidage et le contrôle des ondes élastiques en permettant la synthèse des modes localisés spécifiques (états de bords). Si les propriétés de ces modes font actuellement l'objet de nombreuses études,…

17e Congrès Français d'Acoustique, Société Française d'Acoustique, Apr 2025, Paris, France. ⟨hal-05362771⟩

Article dans une revue

Novel Diffuse Midline Glioma‐on‐Chip Recapitulating Tumor Biophysical Microenvironment to Assess the Heterogeneity of Response to Therapies

Lisa Terrassoux, Calypso Hazard, Agathe Laratte, Joanne Balsamelli, Mélanie Arcicasa, Elisa Fong, Léo Baland, Fabrice Soncin, Giovanni Cappello, Claude‐alain Maurage, Sebastien Janel, Antony Bazir, Fabrizio Cleri, Anthony Treizebre, Eric Lartigau, Yousr Rekik, Samuel Meignan, Alessandro Furlan

Despite significant efforts, Diffuse Midline Gliomas (DMGs) remain incurable. Although promising results are obtained in preclinical studies, most approaches have failed to improve survival in these young patients. In this context, by integrating elements of the biophysical tumor microenvironment…

Small, 2025, 21 (45), pp.e05343. ⟨10.1002/smll.202505343⟩. ⟨hal-05302345⟩

Article dans une revue

Brain‐Inspired Polymer Dendrite Networks for Morphology‐Dependent Computing Hardware

Corentin Scholaert, Yannick Coffinier, Sébastien Pecqueur, Fabien Alibart

Process variation is always a challenge to mitigate in electronics. This especially holds true for organic semiconductors, where reproducibility concerns hinder industrialization. Challenging this concept, it shows AC-electropolymerization to be a powerful platform for the development of morphology…

Advanced Science, 2025, 12 (33), pp.e02291. ⟨10.1002/advs.202502291⟩. ⟨hal-05214086⟩

Article dans une revue

100 Gbit/s and Beyond IEEE 802.15.3d Channelization Compatible THz Communications Enabled by a Broadband MUTC Photodiode

Ezgi Abacıoğlu, Abdu Subahan Mohammed, Jonas Tebart, Marcel Grzeslo, Tom Neerfeld, José Luis Fernández Estévez, Pascal Szriftgiser, Guillaume Ducournau, Andreas Stöhr

We present photonics-driven high data rate IEEE 802.15.3d compliant terahertz (THz) communication links operated at a center frequency of 280 GHz. We analyze wireless data transmission within selected single and dual channels of the IEEE 802.15.3d and assess the outcomes through additional back-to-…

IEEE Transactions on Terahertz Science and Technology, 2025, 15 (3), pp.389 - 399. ⟨10.1109/TTHZ.2025.3541824⟩. ⟨hal-04963122⟩