M2 Research Internship in Low Power Wide Area Networks (LPWANs)
Inria
Villeurbanne
M2 Research Internship in Low Power Wide Area Networks (LPWANs)
Le descriptif de l’offre ci-dessous est en Anglais
Type de contrat : Stage
Niveau de diplôme exigé : Bac + 4 ou équivalent
Fonction : Stagiaire de la recherche
A propos du centre ou de la direction fonctionnelle
The Inria research centre in Lyon is the 9th Inria research centre, formally created in January 2022. It brings together approximately 300 people in 16 research teams and research support services.
Its staff are distributed at this stage on 2 campuses: in Villeurbanne La Doua (Centre / INSA Lyon / UCBL) on the one hand, and Lyon Gerland (ENS de Lyon) on the other.
The Lyon centre is active in the fields of software, distributed and high-performance computing, embedded systems, quantum computing and privacy in the digital world, but also in digital health and computational biology.
Contexte et atouts du poste
This internship will take place in the Inria Agora research team in Lyon. The student will work under the joint supervision of Prof. Alexandre Guitton (LIMOS, University Clermont Auvergne), Dr. Oana Iova (INSA Lyon, Inria) and Prof.Fabrice Valois (INSA Lyon, Inria).
Mission confiée
Low-Power Wide Area Networks (LPWANs) are wireless technologies that allow battery-powered end-devices to communicate over long distances (up to 10-30 km) with very low power consumption. LPWANs are used in Internet of Things (IoT) applications for smart city such as pollution monitoring, smart agriculture, and asset tracking.
Recently, the LR-FHSS (Long-Range Frequency-Hopping Spread Spectrum (LR-FHSS) [1] technology has been proposed by Semtech to enable the communication of a massive number of end-devices and achieve better network capacity. While these characteristics opened the door for new applications such as the communication of end-devices situated on the ground with low Earth orbit (LEO) satellites, LR-FHSS is also the perfect solution for dense network deployments in city environments, being especially important for applications where scalability is crucial [2, 3].
At the moment, there are very few works on LR-FHSS, and most are based on simulations. That is why we intend to make real experiments in order to study the performance of LR- FHSS. The goal of this internship is to study the performance of LR-FHSS through real experiments. To do this, indoor and outdoor experiments will be conducted in order to analyze the trade- offs brought by LR-FHSS in terms of robustness, communication range, and network scalability.
Principales activités
To study this topic, the following method will be used:
• The candidate will study the state of the art on the recent LR-FHSS technology .
• The candidate will learn how to use a LR-FHSS toolkit to send and receive LR- FHSS frames, and an USRP to capture real LR-FHSS transmissions.
• The candidate will setup an experimental scenario with automated configuration and data collection tools.
• The candidate will explore the performance of LR-FHSS achievable in indoor and outdoor environments.
Compétences
The candidate must be studying for a Master’s degree or an equivalent degree (e.g., engineering degree) in Telecommunications Engineering, Computer Science, or Electrical Engineering. Practical skills with programming languages (e.g., C/C++, Python) are required. Expertise in embedded systems will be positively valued. French language is not mandatory but welcomed. We look for empathetic, proactive, and self-driven applicants.
Avantages
- Partial reimbursement of public transport costs
- Social, cultural and sports events and activities
Rémunération
Gratification at €4.05 per hour