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Low Earth Orbit (LEO) satellite constellations have seen a surge in deployment over the past few years by virtue of their ability to provide broadband Internet access as well as to collect vast amounts of Earth observational data that can…

Machine Learning · Computer Science 2022-09-27 Mohamed Elmahallawy , Tie Luo

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

The advances in satellite technology developments have recently seen a large number of small satellites being launched into space on Low Earth orbit (LEO) to collect massive data such as Earth observational imagery. The traditional way…

Machine Learning · Computer Science 2023-02-28 Mohamed Elmahallawy , Tie Luo

Distributed training of machine learning models directly on satellites in low Earth orbit (LEO) is considered. Based on a federated learning (FL) algorithm specifically targeted at the unique challenges of the satellite scenario, we design…

Signal Processing · Electrical Eng. & Systems 2022-06-07 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…

Signal Processing · Electrical Eng. & Systems 2023-06-06 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. While global connectivity is the main rationale, these constellations also offer the potential to…

Signal Processing · Electrical Eng. & Systems 2021-11-29 Nasrin Razmi , Bho Matthiesen , Armin Dekorsy , Petar Popovski

Low Earth Orbit (LEO) satellites are emerging as key components of 6G networks, with many already deployed to support large-scale Earth observation and sensing related tasks. Federated Learning (FL) presents a promising paradigm for…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-07-31 Zhuocheng Liu , Zhishu Shen , Qiushi Zheng , Tiehua Zhang , Zheng Lei , Jiong Jin

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

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

Driven by the ever-increasing penetration and proliferation of data-driven applications, a new generation of wireless communication, the sixth-generation (6G) mobile system enhanced by artificial intelligence (AI), has attracted substantial…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Hao Chen , Ming Xiao , Zhibo Pang

Federated learning (FL) has emerged as a promising distributed training paradigm for Low Earth Orbit (LEO) networks by significantly reducing communication overhead. However, its deployment faces critical challenges, e.g., topology-induced…

Signal Processing · Electrical Eng. & Systems 2026-05-07 Jinhao Yi , Weijun Gao , Chong Han , Ozgur Gurbuz , Josep M. Jornet

Traditional federated learning (FL) frameworks rely heavily on terrestrial networks, where coverage limitations and increasing bandwidth congestion significantly hinder model convergence. Fortunately, the advancement of low-Earth orbit…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-11-22 Yuxin Zhang , Zheng Lin , Zhe Chen , Zihan Fang , Wenjun Zhu , Xianhao Chen , Jin Zhao , Yue Gao

Large-scale low-Earth-orbit (LEO) satellite systems are increasingly valued for their ability to enable rapid and wide-area data exchange, thereby facilitating the collaborative training of artificial intelligence (AI) models across…

Machine Learning · Computer Science 2025-09-17 Binquan Guo , Junteng Cao , Marie Siew , Binbin Chen , Tony Q. S. Quek , Zhu Han

Federated learning (FL) has recently emerged as a distributed machine learning paradigm for systems with limited and intermittent connectivity. This paper presents the new context brought to FL by satellite constellations, where the…

Information Theory · Computer Science 2024-09-24 Bho Matthiesen , Nasrin Razmi , Israel Leyva-Mayorga , Armin Dekorsy , Petar Popovski

Low-Earth orbit (LEO) satellites have been prosperously deployed for various Earth observation missions due to its capability of collecting a large amount of image or sensor data. However, traditionally, the data training process is…

Machine Learning · Computer Science 2023-04-11 Chih-Yu Chen , Li-Hsiang Shen , Kai-Ten Feng , Lie-Liang Yang , Jen-Ming Wu

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

The emergence of mega-constellations of interconnected satellites has a major impact on the integration of cellular wireless and non-terrestrial networks, while simultaneously offering previously inconceivable data gathering capabilities.…

Information Theory · Computer Science 2024-09-24 Nasrin Razmi , Bho Matthiesen , Armin Dekorsy , Petar Popovski

A Low Earth orbit (LEO) satellite constellation consists of a large number of small satellites traveling in space with high mobility and collecting vast amounts of mobility data such as cloud movement for weather forecast, large herds of…

Machine Learning · Computer Science 2023-05-23 Mohamed Elmahallawy , Tie Luo

Large-scale deployments of low Earth orbit (LEO) satellites collect massive amount of Earth imageries and sensor data, which can empower machine learning (ML) to address global challenges such as real-time disaster navigation and…

Machine Learning · Computer Science 2022-02-04 Jinhyun So , Kevin Hsieh , Behnaz Arzani , Shadi Noghabi , Salman Avestimehr , Ranveer Chandra

In the ambitious realm of space AI, the integration of federated learning (FL) with low Earth orbit (LEO) satellite constellations holds immense promise. However, many challenges persist in terms of feasibility, learning efficiency, and…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-04-09 Mohamed Elmahallawy , Tie Luo
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