Réunion


Non-Terrestrial Networks (NTN) Days 2025

Date : du 01 Octobre 2025 au 02 Octobre 2025
Horaire : 09h00 - 17h00
Lieu : Toulouse (LAAS-CNRS, 7 Av. du Colonel Roche)
Axes scientifiques :
  • Télécommunications
GdRs impliqués :
Organisateurs :
  • - Charly Poulliat (IRIT)

Nous vous rappelons que, afin de garantir l'accès de tous les inscrits aux salles de réunion, l'inscription aux réunions est gratuite mais obligatoire.

Inscriptions

6 personnes membres du GdR IASIS, et 6 personnes non membres du GdR, sont inscrits à cette réunion.

Capacité de la salle : 100 personnes. 88 Places restantes

Annonce

Journées co-organisées par le GdR RSD et le GdR IASIS

We are pleased to announce the NTN Days 2025, an event dedicated to Non-Terrestrial Networks, to be held on October 1–2, 2025, at LAAS-CNRS in Toulouse: https://ntndays.space

The objective of these days is to bring together academic and industrial communities working on the multiple challenges of non-terrestrial connectivity, spanning from the physical layer to networking and standardization.

 Topics include (non-exhaustive):

  • Satellite constellations and swarm-based architectures
  • Integration of NTN into 5G/6G and beyond
  • IoT by satellite
  • AI and machine learning for resource optimization
  • Delay-tolerant and resilient protocols
  • LEO/MEO/GEO coordination
  • Standardization efforts and regulatory frameworks
  • NTN for Earth and Space Observation

 Program highlights:

  • Keynote and invited talks from international experts
  • Thematic sessions and roundtables
  • Poster presentations for PhD students
  • Networking sessions and informal discussions

 Important dates:

  • Initial Talk Submission Deadline: September 1st, 2025
  • Preliminary Program Published: September 2nd, 2025
  • Final Program: September 7th, 2025
  • Travel Support Request Deadline (GDR IASIS): September 19th, 2025 (requests must be completed at this date).

Submit a proposal here until September 1st 2025

Registration:  https://ntndays.space

GDR IASIS members must complete a double registration (via both the event website and the GDR IASIS portal for participation declaration and travel support request).

All details for travel support are available here : https://gdr-iasis.cnrs.fr/reunions-scientifiques/prise-en-charge-de-deplacements/

Contact charly.poulliat@enseeiht.fr for further information on this point.

Organizing committee:

  • Nicola Accettura (CNRS, LAAS)
  • Pascal Berthou ( Univ. de Toulouse, LAAS)
  • Riadh Dhaou (Toulouse INP, IRIT)
  • Juan Fraire (Inria)
  • Charly Poulliat (Toulouse INP, IRIT)

Please feel free to share this announcement widely within your networks.
We look forward to welcoming you in Toulouse!


Programme

Wed Oct 1st | Morning

08h45 Reception and Coffee

09h00 Welcome Words (Organisation, TéSA, GDR IASIS & RSD)

Session 1 – Perspectives & NTN Standards (09h15 - 11h00)

09h15 6G NTN: The challenges for extending the terrestrial coverage Ioannis Xirouchakis (Ericsson France)

09h35 5G NTN and 6G, status and perspectives for NTN at the 3GPP Flavien Ronteix-Jacquet (Thales Alenia Space)

09h55 IRIS2 – Overview and challenges Cédric Baudoin (Thales Alenia Space)

10h15 IoT, the spearhead of 5G NTN Vincent Deslandes (Kinéis)

10h45 Coffee Break - Poster Session


Session 2 – Emerging IoT and NTN Technologies (11h15 - 12h30)

11h15 Mioty® – the Best Technology for Satellite-Based IoT Applications Fraunhofer IIS

11h35 Increasing the throughput of Direct-to-Satellite Narrowband IoT networks Zheng Zhou (LAAS-CNRS)

11h55 Achieving reduced latency and energy efficiency in Direct-to-Satellite LoRaWAN communications Florian Rolland (LAAS-CNRS)

12h15 A Finer ALOHA-Based Analytical Model for LR-FHSS Performance Evaluation Lamdani Wilem (Université de Rennes | IRISA)

12h30 Lunch



Wed Oct 1st | Afternoon

Session 3 – Constellations, Swarms, and QoS (14h00 - 15h30)

14h00 Satellite swarm network Bernard Pontet (CNES)

14h20 Routing Strategies for Satellite Swarms in Space Missions Bastien Tauran (Viveris)

14h40 Delay and Buffer Bounds for QoS in Satellite Constellation Networks Jérôme Lacan (ISAE-SUPAERO)

15h00 Comment fiabiliser des réseaux ad-hoc en essaim Evelyne Akopyan (LAAS-CNRS)

15h30 Coffee Break - Poster Session


Session 4 – NTN Experimentation and Integration (16h00 - 17h45)

16h00 NTNLab: An experimental platform to test and evaluate NTN and TN communications Alexis Falempin (IRT Saint Exupéry)

16h20 Catalyzing Innovation: Bringing NTN to Automotive, IoT, and Beyond Arpad Iozsa (Lasting Software)

16h40 Next Generation Network-assisted PNT Assurance Eustachio Roberto Matera (Thales Services Numériques)

17h00 6G Laboratory in Orbit Alexander Hofmann (Fraunhofer IIS)

19h30 Dinner (Costs not covered – place TBD)



Thu Oct 2nd | Morning

Session 5 – IoT NTN Simulation and Optimization (09h00 - 10h30)

09h00 Generating and Visualising Realistic Interplanetary Network Topologies with ESA’s Astrodynamics Software and the IPN-v Lucas Poulhe (INSA Lyon)

09h20 FLoRaSat 2: Simulating Cross-Linked Direct-to-Satellite IoT LEO Constellations Benoît Cougnet & Alexander Choquenaira (Inria)

09h40 Adaptations, Optimizations, and Learning Approaches for Direct-to-Satellite IoT Diego Maldonado (INRIA / INSA Lyon)

10h00 Delay-Tolerant Routing: A-SABR, the Adaptive Library for SABR Longrui Ma (Inria)

10h30 Coffee Break - Poster Session


Session 6 – Interplanetary and DTN Networks (11h00 - 12h30)

11h00 Unraveling Temporal Challenges in Space Networking Juan A. Fraire (Inria)

11h20 Design and Implementation of a Native Socket Interface for the Bundle Protocol Sylvain Pierrot (Polytech)

11h40 Closing perspectives & roundtable discussion

12h30 Closing Session and Buffet Lunch



Thu Oct 2nd | Afternoon

14h00 Side Meetings (Scheduled independently by participants)







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