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Recently, the rapid development of LEO satellite networks spurs another widespread concern-data processing at satellites. However, achieving efficient computation at LEO satellites in highly dynamic satellite networks is challenging and…

Networking and Internet Architecture · Computer Science 2025-04-21 Jiasheng Wu , Jingjing Zhang , Zheng Lin , Zhe Chen , Xiong Wang , Wenjun Zhu , Yue Gao

Advancements in artificial intelligence (AI) and low-earth orbit (LEO) satellites have promoted the application of large remote sensing foundation models for various downstream tasks. However, direct downloading of these models for…

Machine Learning · Computer Science 2025-08-01 Yan Zhu , Jingyang Zhu , Ting Wang , Yuanming Shi , Chunxiao Jiang , Khaled Ben Letaief

Recent advancements in space technology have equipped low Earth Orbit (LEO) satellites with the capability to perform complex functions and run AI applications. Federated Learning (FL) on LEO satellites enables collaborative training of a…

Signal Processing · Electrical Eng. & Systems 2023-12-07 Lingling Wu , Jingjing Zhang

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…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-09-24 Nasrin Razmi , Bho Matthiesen , Armin Dekorsy , Petar Popovski

Satellite technologies have advanced drastically in recent years, leading to a heated interest in launching small satellites into low Earth orbit (LEOs) to collect massive data such as satellite imagery. Downloading these data to a ground…

Cryptography and Security · Computer Science 2023-09-06 Mohamed Elmahallawy , Tie Luo , Mohamed I. Ibrahem

Recently, a large number of Low Earth Orbit (LEO) satellites have been launched and deployed successfully in space by commercial companies, such as SpaceX. Due to multimodal sensors equipped by the LEO satellites, they serve not only for…

Machine Learning · Computer Science 2024-10-21 Zheng Lin , Zhe Chen , Zihan Fang , Xianhao Chen , Xiong Wang , Yue Gao

Low Earth Orbit (LEO) Non-Terrestrial Networks (NTNs) require efficient beam management under dynamic propagation conditions. This work investigates Federated Learning (FL)-based beam selection in LEO satellite constellations, where orbital…

Satellite constellations in low-Earth orbit are now widespread, enabling positioning, Earth imaging, and communications. In this paper we address the solution of learning problems using these satellite constellations. In particular, we…

Machine Learning · Computer Science 2025-11-26 Ruxandra-Stefania Tudose , Moritz H. W. Grüss , Grace Ra Kim , Karl H. Johansson , Nicola Bastianello

The advent of the sixth-generation (6G) wireless networks, enhanced by artificial intelligence, promises ubiquitous connectivity through Low Earth Orbit (LEO) satellites. These satellites are capable of collecting vast amounts of…

Information Theory · Computer Science 2025-11-25 Loc X. Nguyen , Sheikh Salman Hassan , Yu Min Park , Yan Kyaw Tun , Zhu Han , Choong Seon Hong

Low Earth Orbit (LEO) mega-constellations extend the cloud-to-edge continuum into space, enabling satellite edge computing. However, Federated Learning (FL) in this environment is fundamentally energy-constrained due to dynamic…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-20 Nan Yang , Bahman Javadi , Rodrigo Neves Calheiros , David Boland , Philip Leong

Federated learning (FL) is a type of distributed machine learning at the wireless edge that preserves the privacy of clients' data from adversaries and even the central server. Existing federated learning approaches either use (i) secure…

Signal Processing · Electrical Eng. & Systems 2023-03-30 Raphael Pinard , Mitra Hassani , Wayne Lemieux

Federated learning (FL) is a privacy-preserving distributed machine learning paradigm that operates at the wireless edge. It enables clients to collaborate on model training while keeping their data private from adversaries and the central…

Machine Learning · Computer Science 2023-06-06 Wayne Lemieux , Raphael Pinard , Mitra Hassani

Non-terrestrial networks (NTNs) are emerging as a core component of future 6G communication systems, providing global connectivity and supporting data-intensive applications. In this paper, we propose a distributed hierarchical federated…

Machine Learning · Computer Science 2025-03-11 Amin Farajzadeh , Animesh Yadav , Halim Yanikomeroglu

With numerous ongoing deployments owned by private companies and startups, dense satellite constellations deployed in low Earth orbit (LEO) will play a major role in the near future of wireless communications. In addition, the 3rd…

Networking and Internet Architecture · Computer Science 2021-01-12 Israel Leyva-Mayorga , Beatriz Soret , Petar Popovski

Online federated learning (FL) enables geographically distributed devices to learn a global shared model from locally available streaming data. Most online FL literature considers a best-case scenario regarding the participating clients and…

Machine Learning · Computer Science 2023-10-31 Francois Gauthier , Vinay Chakravarthi Gogineni , Stefan Werner , Yih-Fang Huang , Anthony Kuh

Low Earth orbit (LEO) constellations violate core assumptions of standard (quantum) federated learning (FL): client-server connectivity is intermittent, participation is time varying, and latency budgets are strict. We present sat-QFL, a…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-09-23 Dev Gurung , Shiva Raj Pokhrel

The proliferation of low-earth-orbit (LEO) satellite networks leads to the generation of vast volumes of remote sensing data which is traditionally transferred to the ground server for centralized processing, raising privacy and bandwidth…

Signal Processing · Electrical Eng. & Systems 2024-04-03 Yuanming Shi , Li Zeng , Jingyang Zhu , Yong Zhou , Chunxiao Jiang , Khaled B. Letaief

Federated learning (FL) is a promising learning paradigm that can tackle the increasingly prominent isolated data islands problem while keeping users' data locally with privacy and security guarantees. However, FL could result in…

Information Theory · Computer Science 2022-03-30 Peng Yang , Yuning Jiang , Ting Wang , Yong Zhou , Yuanming Shi , Colin N. Jones

Federated learning (FL) is recognized as a key enabling technology to support distributed artificial intelligence (AI) services in future 6G. By supporting decentralized data training and collaborative model training among devices, FL…

Signal Processing · Electrical Eng. & Systems 2021-11-02 Shaoming Huang , Pengfei Zhang , Yijie Mao , Lixiang Lian , Yuanming Shi

We propose a federated learning (FL) in stratosphere (FLSTRA) system, where a high altitude platform station (HAPS) facilitates a large number of terrestrial clients to collaboratively learn a global model without sharing the training data.…

Networking and Internet Architecture · Computer Science 2023-06-12 Amin Farajzadeh , Animesh Yadav , Omid Abbasi , Wael Jaafar , Halim Yanikomeroglu