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Related papers: Federated Learning in NTNs: Design, Architecture a…

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As Low Earth Orbit (LEO) satellite constellations rapidly expand to hundreds and thousands of spacecraft, the need for distributed on-board machine learning becomes critical to address downlink bandwidth limitations. Federated learning (FL)…

Machine Learning · Computer Science 2025-11-20 Grace Kim , Filip Svoboda , Nicholas Lane

In recent years, Federated Learning (FL) has emerged as a widely adopted privacy-preserving distributed training approach, attracting significant interest from both academia and industry. Research efforts have been dedicated to improving…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-06-24 Jer Shyuan Ng , Aditya Pribadi Kalapaaking , Xiaoyu Xia , Dusit Niyato , Ibrahim Khalil , Iqbal Gondal

Non-Terrestrial Networks (NTNs) are becoming a critical component of modern communication infrastructures, especially with the advent of Low Earth Orbit (LEO) satellite systems. Traditional centralized learning approaches face major…

Networking and Internet Architecture · Computer Science 2025-03-04 Engin Zeydan , Cristian J. Vaca-Rubio , Luis Blanco , Roberto Pereira , Marius Caus , Kapal Dev

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

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

Federated Learning (FL) offers a decentralized solution that allows collaborative local model training and global aggregation, thereby protecting data privacy. In conventional FL frameworks, data privacy is typically preserved under the…

Machine Learning · Computer Science 2025-09-24 Zeyu Chen , Wen Chen , Jun Li , Qingqing Wu , Ming Ding , Xuefeng Han , Xiumei Deng , Liwei Wang

Federated learning (FL) is a recently proposed distributed machine learning paradigm dealing with distributed and private data sets. Based on the data partition pattern, FL is often categorized into horizontal, vertical, and hybrid…

Machine Learning · Computer Science 2021-02-19 Xinwei Zhang , Wotao Yin , Mingyi Hong , Tianyi Chen

Devices located in remote regions often lack coverage from well-developed terrestrial communication infrastructure. This not only prevents them from experiencing high quality communication services but also hinders the delivery of machine…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-08-20 Dong-Jun Han , Wenzhi Fang , Seyyedali Hosseinalipour , Mung Chiang , Christopher G. Brinton

Federated Learning (FL) is a method of training machine learning models on private data distributed over a large number of possibly heterogeneous clients such as mobile phones and IoT devices. In this work, we propose a new federated…

Machine Learning · Computer Science 2021-12-15 Enmao Diao , Jie Ding , Vahid Tarokh

Almost all existing hierarchical federated learning (FL) models are limited to two aggregation layers, restricting scalability and flexibility in complex, large-scale networks. In this work, we propose a Multi-Layer Hierarchical Federated…

Machine Learning · Computer Science 2026-02-17 Seyed Mohammad Azimi-Abarghouyi , Carlo Fischione

Federated learning (FL) enables massive distributed Information and Communication Technology (ICT) devices to learn a global consensus model without any participants revealing their own data to the central server. However, the practicality,…

Machine Learning · Computer Science 2020-03-31 Zhikun Chen , Daofeng Li , Ming Zhao , Sihai Zhang , Jinkang Zhu

Federated learning (FL) supports training models on geographically distributed devices. However, traditional FL systems adopt a centralized synchronous strategy, putting high communication pressure and model generalization challenge.…

Machine Learning · Computer Science 2021-11-17 Jing Cao , Zirui Lian , Weihong Liu , Zongwei Zhu , Cheng Ji

Hierarchical federated learning (HFL) has demonstrated promising scalability advantages over the traditional "star-topology" architecture-based federated learning (FL). However, HFL still imposes significant computation, communication, and…

Machine Learning · Computer Science 2025-01-28 Wenzhi Fang , Dong-Jun Han , Christopher G. Brinton

Traditional machine learning is centralized in the cloud (data centers). Recently, the security concern and the availability of abundant data and computation resources in wireless networks are pushing the deployment of learning algorithms…

Information Theory · Computer Science 2021-01-06 Zhaohui Yang , Mingzhe Chen , Kai-Kit Wong , H. Vincent Poor , Shuguang Cui

Federated learning has emerged as a popular technique for distributing machine learning (ML) model training across the wireless edge. In this paper, we propose two timescale hybrid federated learning (TT-HF), a semi-decentralized learning…

Federated learning (FL) enables multiple devices to collaboratively train a global model while maintaining data on local servers. Each device trains the model on its local server and shares only the model updates (i.e., gradient weights)…

Machine Learning · Computer Science 2024-12-31 Nishant S. Gaikwad , Lucas Heublein , Nisha L. Raichur , Tobias Feigl , Christopher Mutschler , Felix Ott

In order to meet the extremely heterogeneous requirements of the next generation wireless communication networks, research community is increasingly dependent on using machine learning solutions for real-time decision-making and radio…

Signal Processing · Electrical Eng. & Systems 2022-01-11 Debaditya Shome , Omer Waqar , Wali Ullah Khan

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) is a privacy-preserving paradigm where multiple participants jointly solve a machine learning problem without sharing raw data. Unlike traditional distributed learning, a unique characteristic of FL is statistical…

Machine Learning · Computer Science 2022-06-14 Kai Yue , Richeng Jin , Ryan Pilgrim , Chau-Wai Wong , Dror Baron , Huaiyu Dai

Federated learning (FL) is a novel distributed machine learning paradigm that enables participants to collaboratively train a centralized model with privacy preservation by eliminating the requirement of data sharing. In practice, FL often…

Machine Learning · Computer Science 2024-03-05 Wei Guo , Fuzhen Zhuang , Xiao Zhang , Yiqi Tong , Jin Dong