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In this paper, we consider privacy aspects of wireless federated learning (FL) with Over-the-Air (OtA) transmission of gradient updates from multiple users/agents to an edge server. By exploiting the waveform superposition property of…

Machine Learning · Computer Science 2022-10-12 Jialing Liao , Zheng Chen , Erik G. Larsson

Federated Edge Learning (FEEL) is a distributed machine learning technique where each device contributes to training a global inference model by independently performing local computations with their data. More recently, FEEL has been…

Machine Learning · Computer Science 2022-11-01 Saeed Razavikia , Jaume Anguera Peris , Jose Mairton B. da Silva , Carlo Fischione

Federated learning (FL) is an emerging machine learning paradigm that allows to accomplish model training without aggregating data at a central server. Most studies on FL consider a centralized framework, in which a single server is endowed…

Machine Learning · Computer Science 2023-03-22 Bin Wang , Jun Fang , Hongbin Li , Xiaojun Yuan , Qing Ling

Federated learning (FL) is a kind of distributed machine learning framework, where the global model is generated on the centralized aggregation server based on the parameters of local models, addressing concerns about privacy leakage caused…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-08-22 Chenhao Xu , Youyang Qu , Yong Xiang , Longxiang Gao

This paper integrates non-orthogonal multiple access (NOMA) and over-the-air federated learning (AirFL) into a unified framework using one simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS). The STAR-RIS…

Information Theory · Computer Science 2022-07-08 Wanli Ni , Yuanwei Liu , Yonina C. Eldar , Zhaohui Yang , Hui Tian

Federated Learning (FL) enables clients to share learning parameters instead of local data, reducing communication overhead. Traditional wireless networks face latency challenges with FL. In contrast, Cell-Free Massive MIMO (CFmMIMO) can…

Machine Learning · Computer Science 2024-12-31 Afsaneh Mahmoudi , Ming Xiao , Emil Björnson

To enable communication-efficient federated learning (FL), this paper studies an unmanned aerial vehicle (UAV)-enabled FL system, where the UAV coordinates distributed ground devices for a shared model training. Specifically, by exploiting…

Signal Processing · Electrical Eng. & Systems 2022-10-21 Min Fu , Yuanming Shi , Yong Zhou

Over-the-Air (OtA) Federated Learning (FL) refers to an FL system where multiple agents apply OtA computation for transmitting model updates to a common edge server. Two important features of OtA computation, namely linear processing and…

Information Theory · Computer Science 2023-10-06 Adrian Edin , Zheng Chen

This paper studies a new latency optimization problem in unmanned aerial vehicles (UAVs)-enabled federated learning (FL) with integrated sensing and communication. In this setup, distributed UAVs participate in model training using sensed…

Information Theory · Computer Science 2024-11-15 Shaba Shaon , Tien Nguyen , Lina Mohjazi , Aryan Kaushik , Dinh C. Nguyen

Federated learning (FL) has been intensively investigated in terms of communication efficiency, privacy, and fairness. However, efficient annotation, which is a pain point in real-world FL applications, is less studied. In this project, we…

Machine Learning · Computer Science 2024-03-19 Jin-Hyun Ahn , Kyungsang Kim , Jeongwan Koh , Quanzheng Li

Decentralized federated learning (DFL) is an emerging paradigm to enable edge devices collaboratively training a learning model using a device-to-device (D2D) communication manner without the coordination of a parameter server (PS).…

Signal Processing · Electrical Eng. & Systems 2025-11-06 Zhiyuan Zhai , Xiaojun Yuan , Xin Wang , Geoffrey Ye Li

This paper introduces a federated learning framework that enables over-the-air computation via digital communications, using a new joint source-channel coding scheme. Without relying on channel state information at devices, this scheme…

Information Theory · Computer Science 2024-11-07 Seyed Mohammad Azimi-Abarghouyi , Lav R. Varshney

Recently, over-the-air federated learning (FL) has attracted significant attention for its ability to enhance communication efficiency. However, the performance of over-the-air FL is often constrained by device selection strategies and…

Networking and Internet Architecture · Computer Science 2026-02-05 Jingyuan Liu , Zheng Chang , Ying-Chang Liang

In this study, we propose a digital over-the-air computation (OAC) scheme for achieving continuous-valued (analog) aggregation for federated edge learning (FEEL). We show that the average of a set of real-valued parameters can be calculated…

Information Theory · Computer Science 2023-09-27 Alphan Sahin

Wirelessly connected devices can collaborately train a machine learning model using federated learning, where the aggregation of model updates occurs using over-the-air computation. Carrier frequency offset caused by imprecise clocks in…

Signal Processing · Electrical Eng. & Systems 2024-01-17 Martin Dahl , Erik G. Larsson

Federated learning (FL) enables edge devices to collaboratively train machine learning models, with model communication replacing direct data uploading. While over-the-air model aggregation improves communication efficiency, uploading…

Information Theory · Computer Science 2024-10-28 Hang Liu , Jia Yan , Ying-Jun Angela Zhang

As 6G and beyond networks grow increasingly complex and interconnected, federated learning (FL) emerges as an indispensable paradigm for securely and efficiently leveraging decentralized edge data for AI. By virtue of the superposition…

Machine Learning · Computer Science 2024-12-24 Jonggyu Jang , Hyeonsu Lyu , David J. Love , Hyun Jong Yang

Over-the-air (OTA) computation has recently emerged as a communication-efficient Federated Learning (FL) paradigm to train machine learning models over wireless networks. However, its performance is limited by the device with the worst SNR,…

Machine Learning · Computer Science 2024-02-05 Muhammad Faraz Ul Abrar , Nicolò Michelusi

The proliferation of the Internet of Things (IoT) and widespread use of devices with sensing, computing, and communication capabilities have motivated intelligent applications empowered by artificial intelligence. The classical artificial…

Machine Learning · Computer Science 2022-06-24 Zunming Chen , Hongyan Cui , Ensen Wu , Yu Xi

Federated learning (FL) with over-the-air computation efficiently utilizes the communication resources, but it can still experience significant latency when each device transmits a large number of model parameters to the server. This paper…

Information Theory · Computer Science 2025-04-22 Chong Zhang , Min Dong , Ben Liang , Ali Afana , Yahia Ahmed