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Electrogenerated polymer dendrites for morphology-dependent hardware applied to unconventional computing, Dendrites en polymère électrogénérées pour du hardware à dépendance morphologique appliqué au calcul non-conventionnel

Corentin Scholaert

Across all domains of science, variability has often been perceived as a drawback. This remains especially true for microelectronics, as industrialization commands a high degree of reproducibility and repeatability. Yet, even though effort has been put into limiting this phenomena, organic…, Dans tous les domaines scientifiques, la variabilité a souvent été perçue comme un inconvénient. Cela est particulièrement vrai pour la microélectronique, où l'industrialisation exige un haut degré de reproductibilité et de répétabilité. Pourtant, bien que des efforts aient été déployés pour…

Physics [physics]. Université de Lille, 2024. English. ⟨NNT : 2024ULILN051⟩. ⟨tel-04822273⟩

Communication dans un congrès

Improvement of LR-FHSS LPWAN Satellite Communication for IoMT

Puput Dani Prasetyo Adi, El Hadj Dogheche, Iyad Dayoub, Kevin Stekelorom, Denis Remiens, Nasrullah Armi

oRaWAN telecommunication improvements continue to be developed to avoid data collisions, data errors, attenuation, and signal interferences. One solution is to use LPWAN with satellite communication. This research seeks to make improvements from the LPWAN side as a data transmission medium as well…

7th International Seminar on Research of Information Technology and Intelligent Systems: Advanced Intelligent Systems in Contemporary Society, ISRITI 2024, Dec 2024, Yogyakarta, Indonesia. pp.126-131, ⟨10.1109/ISRITI64779.2024.10963493⟩. ⟨hal-05072652⟩

Article dans une revue

A Review of Neuromorphic Sound Source Localization and Echolocation-Based Navigation Systems

Eugénie Dalmas, François Danneville, Fouzia Elbahhar, Michael Bocquet, Christophe Loyez

<div><p>The development of positioning systems has been significantly advanced by a combination of technological innovations, such as improved sensors, signal processing, and computational power, alongside inspiration drawn from biological mechanisms. Although vision is the main means…

Electronics, 2024, 13 (24), pp.4858. ⟨10.3390/electronics13244858⟩. ⟨hal-04863043⟩

Thèse

Terahertz time-domain ellipsometry based on spintronic phenomena, Ellipsométrie temporelle térahertz basée sur des phénomènes spintroniques

Pierre Koleják

Ellipsometry is a foundational technique in materials science, enabling precise characterization of optical properties, thickness, and composition. Extending ellipsometry into the terahertz (THz) range unlocks new opportunities to probe fundamental material characteristics such as conductivity and…, L'ellipsométrie, technique clé en science des matériaux, caractérise précisément les propriétés optiques, l'épaisseur et la composition. Son extension au domaine térahertz (THz) permet de sonder la conductivité et la dynamique des porteurs, essentielles pour les avancées en semi-…

Physics [physics]. Université de Lille; VŠB - Technical University of Ostrava, 2024. English. ⟨NNT : 2024ULILN047⟩. ⟨tel-04822254⟩

Article dans une revue

Efficient LLR approximation using machine learning in symmetric-alpha-stable channels

Latifa Mostari, Alban Goupil, Abdelmalik Taleb-Ahmed

In environments characterized by impulsive noise, such as Symmetric-α-Stable (SαS) channels, the channel parameters α and γ need to be fixed to approximate the Log-Likelihood Ratio (LLR) computation required by many decoders. The possible values of γ are typically very close for a fixed value of α…

Studies in Engineering and Exact Sciences, 2024, 5 (2), pp.e11822. ⟨10.54021/seesv5n2-689⟩. ⟨hal-04879206⟩

Article dans une revue

On SDN to Support the IEEE 802.11 and C-V2X-Based Vehicular Communications Use-Cases and Performance: A Comprehensive Survey

Galih Nugraha Nurkahfi, Andy Triwinarko, Budi Prawara, Nasrullah Armi, Tutun Juhana, Nana Rachmana Syambas, Eueung Mulyana, El Hadj Dogheche, Iyad Dayoub

<div xmlns="http://www.tei-c.org/ns/1.0"><p>SDN's ability to provide a global view, centralized control, and flexibility in orchestrating network infrastructure are expected to overcome challenges in the dynamic conditions of vehicular communications. We are looking to…

IEEE Access, 2024, 12, pp.95926 - 95958. ⟨10.1109/access.2023.3341092⟩. ⟨hal-04829618⟩

Communication dans un congrès

V2I Communication and Multi-Sensor Fusion for Real-Time Accurate Localization

moad dehbi, Mohamed Amine BOUZAIDI TIALI, Azeddine Benlamoudi, Marwane Ayaida, Yassin El Hillali, Atika Rivenq

This paper presents a novel localization approach that enhances accuracy and reduces error drift by integrating High Definition (HD) maps with multi-sensor data. Leveraging LiDAR and GPS data, our method cross-references detected physical landmarks with HD maps to improve precision. When sensor…

GLOBECOM 2024 - 2024 IEEE Global Communications Conference, Dec 2024, Cape Town, South Africa. pp.3225-3230, ⟨10.1109/GLOBECOM52923.2024.10901322⟩. ⟨hal-05039620⟩

Communication dans un congrès

Vertical GaN devices: Reliability challenges and lessons learned from Si and SiC

M. Meneghini, M. Fregolent, N. Zagni, Y. Hamadoui, A. Marcuzzi, D. Favero, C. de Santi, M. Buffolo, M. Tomasi, G. Zappalà, E. Bahat-Treidel, E. Brusaterra, F. Brunner, O. Hilt, C. Huber, F Medjdoub, G. Meneghesso, G. Verzellesi, P. Pavan, E. Zanoni

We discuss recent advancements in the development of vertical GaN devices, and the related reliability challenges. Key results indicate that: (i) vertical GaN devices can show high performance, low background doping, and kV-range breakdown voltages; avalanche capability (a property of Si and SiC…

IEDM 2023 - 70th Annual IEEE International Electron Devices Meeting, Dec 2024, San Francisco, United States. pp.1-4, ⟨10.1109/IEDM50854.2024.10873536⟩. ⟨hal-04762052⟩

Thèse

Deux analogies basées sur la mécanique des fluides : de l'échelle cosmologique à l'échelle particulaire, Two analogues based on fluid mechanics : from cosmological to quantum scales

Jean-Paul Martischang

En physique comme dans toute autre science, on peut considérer les analogies comme des ponts que l'on jette entre les différents domaines~; ainsi une expérience à l'échelle du laboratoire peut trouver un écho à l'échelle quantique ou à celle des galaxies. En décelant les similitudes…, In physics, as in other scientific disciplines, analogies can be seen as bridges that can be built between different fields. Thus, an experiment conducted on a laboratory scale may find an echo on the quantum or even galactic scale. By identifying the similarities between seemingly disparate…

Acoustique [physics.class-ph]. Université de Lille, 2024. Français. ⟨NNT : 2024ULILN050⟩. ⟨tel-05058028v2⟩

Thèse

Deciphering flax dew retting by a multimodal approach, Analyse multimodale du processus de rouissage sur champs du lin : étude fonctionnelle et spectrales en vue d'améliorer la qualité des fibres

Suvajit Mukherjee

Plant bast fibers, traditionally used in textiles, are gaining attention as sustainable alternatives to synthetic fibers, especially in composite materials. Flax (Linum usitatissimum L.) is a key crop in France's textile and materials industries due to its strong, flexible bast fibers found in…, Les fibres issues des plantes sont traditionnellement utilisées dans les textiles et représentent une alternative durable aux fibres synthétiques, notamment dans les matériaux composites. Les fibres de lin sont produites dans la tige, entre le parenchyme cortical et le phloème secondaire. L'…

Engineering Sciences [physics]. Université de Lille, 2024. English. ⟨NNT : ⟩. ⟨tel-04833534⟩