BEGIN:VCALENDAR VERSION:2.0 PRODID:-//NTN Days//NTN Days 2026//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:NTN Days 2026 X-WR-TIMEZONE:Europe/Paris BEGIN:VTIMEZONE TZID:Europe/Paris BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:19700329T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:19701025T030000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:ntndays2026@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T083000 DTEND;TZID=Europe/Paris:20261014T160000 SUMMARY:NTN Days 2026 DESCRIPTION:NTN Days 2026\, the event dedicated to Non-Terrestrial Networ ks\, bringing together academic and industrial communities working on th e challenges of non-terrestrial connectivity\, from the physical layerto networking and standardization.\n\nTwo keynotes\, four technical sessio ns\, a poster session and a roundtable.\nFull program: https://ntndays.s pace/#program LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/ STATUS:CONFIRMED TRANSP:OPAQUE END:VEVENT BEGIN:VEVENT UID:d1-welcome@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T083000 DTEND;TZID=Europe/Paris:20261013T090000 SUMMARY:Welcome coffee\, registration and poster setup LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-opening@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T090000 DTEND;TZID=Europe/Paris:20261013T091500 SUMMARY:Opening DESCRIPTION:Vania Conan\, Pengwenlong Gu\, Juan A. Fraire LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-keynote1@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T091500 DTEND;TZID=Europe/Paris:20261013T100000 SUMMARY:Keynote: Hassan Fawaz (Univity) - From Vision to Validation DESCRIPTION:From Vision to Validation\, Univity's 5G NTN Journey.\n\nThis keynote will introduce Univity's vision for 5G Non-Terrestrial Networks and present some of the key building blocks developed to turn that visi on into a validated system. Through uniSpark\, uniShape and the company' s digital-twin environment\, the presentation will highlight how archite cture\, emulation and end-to-end testing are used to progressively desig n\, integrate and de-risk satellite-based 5G connectivity. LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-break1@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T100000 DTEND;TZID=Europe/Paris:20261013T103000 SUMMARY:Coffee break LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-session1@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T103000 DTEND;TZID=Europe/Paris:20261013T120000 SUMMARY:Session 1: Programmes\, access\, interference and spectrum DESCRIPTION:10:30 Flavien Ronteix (EC-JRC): IRIS2\, a catalyst for 5G NTN and European technological sovereignty\n10:45 Nicola Accettura (LAAS-CN RS): Standalone standard satellite-aided Internet connectivity\n11:00 Al i Khalesi (IPSA\, LINCS): Beyond coverage\, how mega-constellations will shape the future of non-terrestrial networks\n11:15 Jihane Lghoury (IRI T\, Ericsson): Interference-aware beam hopping scheduling for LEO satell ite networks using soft-conflict graph coloring\n11:30 Ashutosh Balakris hnan (Telecom Paris): Doppler-Shannon association framework for non-terr estrial networks\n11:45 Graeme Young (SKAO): Radio astronomy protection for direct-to-device applications LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-lunch@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T120000 DTEND;TZID=Europe/Paris:20261013T133000 SUMMARY:Lunch (posters on display) LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-session2@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T133000 DTEND;TZID=Europe/Paris:20261013T144500 SUMMARY:Session 2: Waveforms and access for satellite IoT DESCRIPTION:13:30 Omar El Marzougui (Toulouse INP\, IRIT): Chirp-based wa veform design for next generation non-terrestrial networks\n13:45 Antony Pottier (CEA-Leti): Study of ODDM on NTN channels for LEO satellite com munications\n14:00 Vincent Deslandes (Kineis): Kineis wide area network for satellite IoT\, performance and protocol optimisation\n14:15 Antonin Le Floch (Kineis): NTN-IoT performance survey\, from simulation to in-o rbit testing\n14:30 Carlos Fernandez Hernandez (INSA Lyon\, Inria): From ground to space\, efficient downlink scheduling for direct-to-satellite LoRaWAN LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-break2@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T144500 DTEND;TZID=Europe/Paris:20261013T151500 SUMMARY:Coffee break LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-posters@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T151500 DTEND;TZID=Europe/Paris:20261013T163000 SUMMARY:Poster session and demos (students) DESCRIPTION:Four posters and one live demo by students.\n\nMiguel Filipe (LAAS-CNRS): Breaking the GNSS dependency in direct-to-satellite cellula r networks\nFlorian Rolland (LAAS-CNRS): Time division multiple access f or GNSS-free direct-to-satellite long range wide area networks\nAli Srou r (Cnam): Energy-aware adaptive processing management for Open RAN UxNBs \nYanis Maatouk (Sorbonne Universite): Towards geolocating Starlink user s from RTT timing\, starting with recognition behind a VPN\nStefano Tabo relli (Cnam\, demo): OCUDU-SkyLink\, extending OCUDU for multi-connectiv ity in space-terrestrial 6G networks LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d1-wrapup@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261013T163000 DTEND;TZID=Europe/Paris:20261013T164500 SUMMARY:Day 1 wrap-up LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-breakfast@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T083000 DTEND;TZID=Europe/Paris:20261014T090000 SUMMARY:Breakfast LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-keynote2@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T090000 DTEND;TZID=Europe/Paris:20261014T094500 SUMMARY:Keynote: Francois Baccelli (Inria\, Telecom Paris\, LINCS) DESCRIPTION:Research on Non-Terrestrial Networks: Design Tools\, Regulati on\, and Cooperation.\n\nThis talk presents a research and innovation pr ogramme on non-terrestrial networks (NTN) built on three complementary c omponents. The first is a set of advanced analytical tools for the desig n of efficient\, high-performance NTN: recent theoretical results that c haracterize and predict the statistics of spectral efficiency in large-s cale deployments\, and that support the design of constellation architec tures\, routing strategies and critical performance metrics such as late ncy as a function of the constellation parameters and architecture. Ongo ing work extends these methods to terrestrial/non-terrestrial integratio n\, to sensing capabilities\, to reconfigurable intelligent surfaces. Th e second component is interdisciplinary and regulatory: following the 20 24 report of the Academie des sciences on large satellite constellations \, NTN were selected as one of the three scientific priorities of the S7 process for the 2026 G7 summit\, and the resulting joint statement of t he G7 academies calls for an international\, science-based regulatory fr amework ensuring the sustainable use of low Earth orbit. The third compo nent is industrial and international cooperation\, with partners such as Univity\, Greenerwave and ONERA\, and with universities in South Korea. LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-break1@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T094500 DTEND;TZID=Europe/Paris:20261014T101500 SUMMARY:Coffee break (posters on display) LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-session3@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T101500 DTEND;TZID=Europe/Paris:20261014T113000 SUMMARY:Session 3: Constellation dynamics\, emulation and orbital computi ng DESCRIPTION:10:15 Emanuele Mengoli (Telecom Paris\, Inria): Handover dyna mics in LEO non-terrestrial networks\, a stochastic-geometry approach\n1 0:30 Sanjoy Kumar Jhawar (Telecom Paris\, Inria): Seasonal statistics of Shannon rate in a dynamical Poisson-Voronoi cellular network\n10:45 Lou is Barbier (ISAE-SUPAERO): SatComTopology and SatGoNetEm\, a flexible pl atform for dynamic satellite-network experimentation\n11:00 Bastien Taur an (Viveris Technologies): CERES\, a satellite constellation network emu lator\n11:15 Juan A. Fraire (Inria\, INSA Lyon): Ungrounded computing in low-Earth orbit LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-lunch@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T113000 DTEND;TZID=Europe/Paris:20261014T130000 SUMMARY:Lunch LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-session4@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T130000 DTEND;TZID=Europe/Paris:20261014T141500 SUMMARY:Session 4: Small satellites\, DTN and the Solar System Internet DESCRIPTION:13:00 Nicolas Gresset-Bourgeois (TeSA): On the optimal number of relays for nanosatellite swarm downlink under ground station reconfi guration overhead\n13:15 Charlelie Pignol (UGA\, CSUG\, LIG): ThingSat\, an in-orbit research vehicle for experimenting with satellite IoT\n13:3 0 Sarah Theoulle (LIRMM): CSPCL\, a stepwise\, non-disruptive transition to Delay-Tolerant Networking for CubeSat operators\n13:45 Alice Le Biha n (INSA Lyon): A tool suite towards a Solar System Internet digital twin \n14:00 Alejandro Matias Toledo (Concordia University): Lifespan-awareco ntact plan design for interplanetary free-space optical networks LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-break2@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T141500 DTEND;TZID=Europe/Paris:20261014T144000 SUMMARY:Break LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-roundtable@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T144000 DTEND;TZID=Europe/Paris:20261014T154000 SUMMARY:Roundtable: NTN\, time to move from theory to implementation DESCRIPTION:Panel: Hassan Fawaz (Univity)\, Francois Baccelli (Inria\, Te lecom Paris\, LINCS)\, Christelle Caillouet (Universite Cote d'Azur\, I3 S\, Inria)\, Isabelle Bucaille (Thales). Moderated by Pengwenlong Gu (Cn am). LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:d2-closing@ntndays.space DTSTAMP:20260923T000000Z DTSTART;TZID=Europe/Paris:20261014T154000 DTEND;TZID=Europe/Paris:20261014T160000 SUMMARY:Closing LOCATION:Amphitheatre Jean-Baptiste Say (access Y\, lower level)\, Cnam\, 292 Rue Saint-Martin\, 75003 Paris\, France URL:https://ntndays.space/#program-day2 TRANSP:TRANSPARENT END:VEVENT END:VCALENDAR