I work at the chair of Prof. Holger Hermanns since June 2019. My PhD project revolves around the domain of space and satellites. 🚀 My work started with cost-optimal, energy-aware task scheduling for nanosatellites and has since shifted a bit towards efficient routing algorithms in large mega-constellations as well as other space-related topics. This fits well with one of the chair’s Advanced Courses, namely “Space Informatics”, of which I am the teaching assistant. I am currently the main developer of the LEOpowver project and am part of the team working on the MISSION project.
I received my B.Sc. in computer science in February 2018 and my M.Sc. in March 2020. My theses were on “A Modest Approach to Satellite Operation” and “Cache Persistence Analysis: Finally Exact”, respectively.
Publications
| Year | Publication |
|---|---|
| 2025 | Robin Ohs, Gregory F. Stock, Juan A. Fraire, Holger Hermanns, Andreas Schmidt: PhantomLink: Emulating Virtual End-to-End Links on Ground and in Orbit ANRW 2025 |
| 2025 | Gregory F. Stock, Juan A. Fraire, Holger Hermanns, Jędrzej Mosiężny, Yusra Al-Khazraji, Julio R. Molina, Evridiki V. Ntagiou: On the Role of AI in Managing Satellite Constellations: Insights from the ConstellAI Project SpaceOps 2025 |
| 2025 | Camilla Ottaviani, Alessandro Compagnoni, Juan A. Fraire, Giacomo Verardo, Gabriel M. Capez, Daniel G. Riviello, Gregory Stock, Carla F. Chiasserini, Roberto Garello: Advanced Routing Strategies for LEO and VLEO Constellations: Ensuring Polar Coverage ASMS 2025 |
| 2024 | Evridiki Ntagiou, Pierre Choukroun, Holger Hermanns, Juan A. Fraire, Petr Kubasta, Gregory Stock, Rafael J. B. Fabelo, Yusra Al-Khazraji, Sepideh Rahimian, Septika P. Artati, Jeremy Pierce-Mayer, Erica Rapp, Pierrick Houédé, Franck Appaix, Marc Spigai: Constellation Autonomy: AI Solutions for Adaptable and Efficient Operations IAC 2024, IAF Digital Library |
| 2024 | Juan A. Fraire, Santiago Henn, Gregory Stock, Robin Ohs, Holger Hermanns, Felix Walter, Lynn Van Broock, Gabriel Ruffini, Federico Machado, Pablo Serratti, Jose Relloso: Quantitative analysis of segmented satellite network architectures: A maritime surveillance case study Comput. Networks 255, HAL (🔓) |
| 2024 | Gregory Stock, Juan A. Fraire, Santiago Henn, Holger Hermanns, Andreas Schmidt: A Stability-first Approach to Running TCP over Starlink ICC 2024 – 6GSatComNet’24, arXiv (🔓) |
| 2023 | Andreas Schmidt, Gregory Stock, Robin Ohs, Luis Gerhorst, Benedict Herzog, Timo Hönig: carbond: An Operating-System Daemon for Carbon Awareness HotCarbon 2023 (🔓) ACM EIR 2024 (🔓) |
| 2022 | Gregory Stock, Juan A. Fraire, Holger Hermanns: Distributed On-Demand Routing for LEO Mega-Constellations: A Starlink Case Study ASMS 2022, Technical Report (🔓) |
| 2021 | Gregory Stock, Juan A. Fraire, Holger Hermanns, Eduardo Cruz, Alastair Isaacs, Zhana Imbrosh: On the Automation, Optimization, and In-Orbit Validation of Intelligent Satellite Constellation Operations SmallSat 2021 (🔓), arXiv (🔓) |
| 2020 | Gregory Stock, Juan A. Fraire, Tobias Mömke, Holger Hermanns, Fakhri Babayev, Eduardo Cruz: Managing Fleets of LEO Satellites EMSOFT 2020, POWVER Technical Report 2020-06 (🔓) |
| 2019 | Gregory Stock, Sebastian Hahn, Jan Reineke: Cache Persistence Analysis: Finally Exact RTSS 2019, Technical Report (🔓) |
🔓 — freely available / open access
Teaching Experience
Teaching Assistant
| Winter 2023/24 | Teaching Assistant for Space Informatics |
| Winter 2022/23 | Teaching Assistant for Programming 1 |
| Winter 2021/22 | Teaching Assistant for Hands-On Dependability |
| Summer 2021 | Teaching Assistant for Space Informatics |
| Summer 2020 | Teaching Assistant for Space Informatics |
| Summer 2020 | Teaching Assistant for “Nebenläufige Programmierung” (Concurrent Programming) |
| Summer 2019 | Teaching Assistant for Space Informatics |
| Winter 2018/19 | Teaching Assistant for Space Informatics |
Student TA
| Winter 2018/19 | Supervisor and Coach for “Mathematik-Vorkurs” (Preparatory Course in Mathematics) |
| Winter 2017/18 | Supervisor and Coach for “Mathematik-Vorkurs” (Preparatory Course in Mathematics) |
| Summer 2017 | Student TA for “Nebenläufige Programmierung” (Concurrent Programming) |
| Winter 2016/17 | Supervision Student TA for “Programmierung 1” (Programming 1) |
| Winter 2016/17 | Coach for “Mathematik-Vorkurs” (Preparatory Course in Mathematics) |
| Summer 2016 | Student TA for “Programmierung 2” (Programming 2) |
| Winter 2015/16 | Student TA for “Programmierung 1” (Programming 1) |
Contact
| Address: | Campus Saarbrücken, 66123 Saarbrücken |
| Location: | Bldg. E1 3, Room 532 |
| Phone: | +49 681 302 5635 |
| E-mail: | stock@depend.uni-saarland.de PGP Fingerprint: 624A 35EE 0F54 6ECF 199E 99F1 01F0 5220 0D06 1069 |