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 • 24 May 2024 • MohammadAmin Vakilifard, Tim Düe, Mohammad Rihan, Maik Röper, Dirk Wübben, Carsten Bockelmann, Armin Dekorsy
The rapid growth of non-terrestrial communication necessitates its integration with existing terrestrial networks, as highlighted in 3GPP Releases 16 and 17.
no code implementations • 14 May 2024 • Johannes Königs, Carsten Bockelmann, Armin Dekorsy
This paper presents an approach for instantaneous bandwidth estimation from level-crossing samples using a long short-term memory (LSTM) encoder-decoder architecture.
no code implementations • 12 Apr 2024 • Ahmad Halimi Razlighi, Carsten Bockelmann, Armin Dekorsy
In this paper, we investigated semantic communication for multi-task processing using an information-theoretic approach.
1 code implementation • 26 Feb 2024 • Alea Schröder, Steffen Gracla, Maik Röper, Dirk Wübben, Carsten Bockelmann, Armin Dekorsy
Low Earth Orbit (LEO) satellite-to-handheld connections herald a new era in satellite communications.
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.
1 code implementation • 5 May 2023 • Edgar Beck, Carsten Bockelmann, Armin Dekorsy
Following the recent success of Machine Learning tools in wireless communications, the idea of semantic communication by Weaver from 1949 has gained attention.
no code implementations • 25 Apr 2023 • Steffen Gracla, Carsten Bockelmann, Armin Dekorsy
With increasing complexity of modern communication systems, machine learning algorithms have become a focal point of research.
1 code implementation • 21 Apr 2023 • Steffen Gracla, Carsten Bockelmann, Armin Dekorsy
The quality of data driven learning algorithms scales significantly with the quality of data available.
1 code implementation • 20 Apr 2023 • Steffen Gracla, Edgar Beck, Carsten Bockelmann, Armin Dekorsy
Questions remain on the robustness of data-driven learning methods when crossing the gap from simulation to reality.
1 code implementation • 19 Apr 2023 • Steffen Gracla, Edgar Beck, Carsten Bockelmann, Armin Dekorsy
Advances in mobile communication capabilities open the door for closer integration of pre-hospital and in-hospital care processes.
1 code implementation • 13 Mar 2023 • Steffen Gracla, Alea Schröder, Maik Röper, Carsten Bockelmann, Dirk Wübben, Armin Dekorsy
Direct Low Earth Orbit satellite-to-handheld links are expected to be part of a new era in satellite communications.
no code implementations • 3 Mar 2023 • Christopher Willuweit, Carsten Bockelmann, Armin Dekorsy
Wireless sensor nodes need a drastically reduced technical complexity to fit constraints of future applications.
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.
1 code implementation • 28 Apr 2022 • Edgar Beck, Carsten Bockelmann, Armin Dekorsy
Thus, we model semantics by means of hidden random variables and define the semantic communication task as the data-reduced and reliable transmission of messages over a communication channel such that semantics is best preserved.
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.
1 code implementation • 12 Nov 2021 • Steffen Gracla, Edgar Beck, Carsten Bockelmann, Armin Dekorsy
Greater capabilities of mobile communications technology enable interconnection of on-site medical care at a scale previously unavailable.
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.
1 code implementation • 25 Feb 2021 • Edgar Beck, Carsten Bockelmann, Armin Dekorsy
Following the great success of Machine Learning (ML), especially Deep Neural Networks (DNNs), in many research domains in 2010s, several ML-based approaches were proposed for detection in large inverse linear problems, e. g., massive MIMO systems.