no code implementations • 23 Sep 2024 • Nasrin Razmi, Bho Matthiesen, Armin Dekorsy, Petar Popovski
Federated learning in satellite constellations, where the satellites collaboratively train a machine learning model, is a promising technology towards enabling globally connected intelligence and the integration of space networks into terrestrial mobile networks.
no code implementations • 25 Jul 2024 • Sourav Mukherjee, Nasrin Razmi, Armin Dekorsy, Petar Popovski, Bho Matthiesen
This paper investigates federated learning (FL) in a multi-hop communication setup, such as in constellations with inter-satellite links.
no code implementations • 14 Feb 2024 • Nasrin Razmi, Bho Matthiesen, Armin Dekorsy, Petar Popovski
Mega-constellations of small satellites have evolved into a source of massive amount of valuable data.
no code implementations • 30 Jan 2023 • Maik Röper, Bho Matthiesen, Dirk Wübben, Petar Popovski, Armin Dekorsy
In case of imperfect position knowledge, the performance degradation of the robust precoder is relatively small.
no code implementations • 4 Jun 2022 • Nasrin Razmi, Bho Matthiesen, Armin Dekorsy, Petar Popovski
Distributed training of machine learning models directly on satellites in low Earth orbit (LEO) is considered.
no code implementations • 1 Jun 2022 • Bho Matthiesen, Nasrin Razmi, Israel Leyva-Mayorga, Armin Dekorsy, Petar Popovski
Federated learning (FL) has recently emerged as a distributed machine learning paradigm for systems with limited and intermittent connectivity.
no code implementations • 16 Dec 2021 • Maik Röper, Bho Matthiesen, Dirk Wübben, Petar Popovski, Armin Dekorsy
In this paper, we propose a distributed linear precoding scheme and a GS equalizer relying on local position information.
no code implementations • 24 Nov 2021 • Nasrin Razmi, Bho Matthiesen, Armin Dekorsy, Petar Popovski
Mega-constellations of small-size Low Earth Orbit (LEO) satellites are currently planned and deployed by various private and public entities.
no code implementations • 3 Sep 2021 • Nasrin Razmi, Bho Matthiesen, Armin Dekorsy, Petar Popovski
In Low Earth Orbit (LEO) mega constellations, there are relevant use cases, such as inference based on satellite imaging, in which a large number of satellites collaboratively train a machine learning model without sharing their local datasets.
2 code implementations • 1 Feb 2021 • Emil Björnson, Henk Wymeersch, Bho Matthiesen, Petar Popovski, Luca Sanguinetti, Elisabeth de Carvalho
We will provide the formulas and derivations that are required to understand and analyze RIS-aided systems using signal processing, and exemplify how they can be utilized for improved communication, localization, and sensing.
1 code implementation • 17 Dec 2018 • Bho Matthiesen, Alessio Zappone, Karl-L. Besser, Eduard A. Jorswieck, Merouane Debbah
Specifically, thanks to its reduced complexity, the proposed method can be used to train an artificial neural network to predict the optimal resource allocation.