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In this letter, we introduce over-the-air computation into the communication design of federated multi-task learning (FMTL), and propose an over-the-air federated multi-task learning (OA-FMTL) framework, where multiple learning tasks…

Machine Learning · Computer Science 2021-10-26 Haoming Ma , Xiaojun Yuan , Dian Fan , Zhi Ding , Xin Wang , Jun Fang

In federated learning (FL) systems, e.g., wireless networks, the communication cost between the clients and the central server can often be a bottleneck. To reduce the communication cost, the paradigm of communication compression has become…

Machine Learning · Statistics 2022-11-28 Xiaoyun Li , Ping Li

Federated learning (FL) aims to train machine learning models in the decentralized system consisting of an enormous amount of smart edge devices. Federated averaging (FedAvg), the fundamental algorithm in FL settings, proposes on-device…

Machine Learning · Computer Science 2020-12-17 Xin Yao , Tianchi Huang , Rui-Xiao Zhang , Ruiyu Li , Lifeng Sun

To address the limitations of traditional over-the-air federated learning (OA-FL) such as limited server coverage and low resource utilization, we propose an OA-FL in MIMO cloud radio access network (MIMO Cloud-RAN) framework, where edge…

Information Theory · Computer Science 2023-05-18 Haoming Ma , Xiaojun Yuan , Zhi Ding

Major bottlenecks of large-scale Federated Learning(FL) networks are the high costs for communication and computation. This is due to the fact that most of current FL frameworks only consider a star network topology where all local trained…

Information Theory · Computer Science 2021-09-23 Thinh Quang Dinh , Diep N. Nguyen , Dinh Thai Hoang , Pham Tran Vu , Eryk Dutkiewicz

We study over-the-air (OTA) federated learning (FL) for energy harvesting devices with heterogeneous data distribution over wireless fading multiple access channel (MAC). To address the impact of low energy arrivals and data heterogeneity…

Machine Learning · Computer Science 2025-11-13 Furkan Bagci , Busra Tegin , Mohammad Kazemi , Tolga M. Duman

Federated learning (FL) over wireless communication channels, specifically, over-the-air (OTA) model aggregation framework is considered. In OTA wireless setups, the adverse channel effects can be alleviated by increasing the number of…

Machine Learning · Computer Science 2021-12-22 Ozan Aygün , Mohammad Kazemi , Deniz Gündüz , Tolga M. Duman

In this paper, the performance optimization of federated learning (FL), when deployed over a realistic wireless multiple-input multiple-output (MIMO) communication system with digital modulation and over-the-air computation (AirComp) is…

Information Theory · Computer Science 2024-04-26 Sihua Wang , Mingzhe Chen , Cong Shen , Changchuan Yin , Christopher G. Brinton

Federated learning enables isolated clients to train a shared model collaboratively by aggregating the locally-computed gradient updates. However, privacy information could be leaked from uploaded gradients and be exposed to malicious…

Cryptography and Security · Computer Science 2023-02-28 Dun Zeng , Shiyu Liu , Siqi Liang , Zonghang Li , Hui Wang , Irwin King , Zenglin Xu

Federated learning often suffers from slow and unstable convergence due to the heterogeneous characteristics of participating client datasets. Such a tendency is aggravated when the client participation ratio is low since the information…

Machine Learning · Computer Science 2024-04-02 Geeho Kim , Jinkyu Kim , Bohyung Han

In this paper, we study how to optimize the federated edge learning (FEEL) in UAV-enabled Internet of things (IoT) for B5G/6G networks, from a deep reinforcement learning (DRL) approach. The federated learning is an effective framework to…

Networking and Internet Architecture · Computer Science 2021-06-09 Shunpu Tang , Wenqi Zhou , Lunyuan Chen , Lijia Lai , Junjuan Xia , Liseng Fan

Federated Learning (FL) has evolved as a promising technique to handle distributed machine learning across edge devices. A single neural network (NN) that optimises a global objective is generally learned in most work in FL, which could be…

Information Theory · Computer Science 2022-03-10 Sawan Singh Mahara , Shruti M. , B. N. Bharath , Akash Murthy

We propose an uplink over-the-air aggregation (OAA) method for wireless federated learning (FL) that simultaneously trains multiple models. To maximize the multi-model training convergence rate, we derive an upper bound on the optimality…

Information Theory · Computer Science 2024-09-04 Chong Zhang , Min Dong , Ben Liang , Ali Afana , Yahia Ahmed

In this paper, we investigate federated contextual linear bandit learning within a wireless system that comprises a server and multiple devices. Each device interacts with the environment, selects an action based on the received reward, and…

Machine Learning · Computer Science 2023-08-29 Jiali Wang , Yuning Jiang , Xin Liu , Ting Wang , Yuanming Shi

Edge signal processing facilitates distributed learning and inference in the client-server model proposed in federated learning. In traditional machine learning, clients (IoT devices) that acquire raw signal samples can aid a data center…

Signal Processing · Electrical Eng. & Systems 2024-10-03 Vijay Anavangot

Federated learning using mobile and Internet of Things devices requires not only the ability to handle heterogeneity of clients' data distributions but also high adaptability to varying communication environments. We propose FedHAW…

Machine Learning · Computer Science 2026-05-04 Ayano Nakai-Kasai , Tadashi Wadayama

Federated learning (FL) in wireless computing effectively utilizes communication bandwidth, yet it is vulnerable to errors during the analog aggregation process. While removing users with unfavorable channel conditions can mitigate these…

Signal Processing · Electrical Eng. & Systems 2025-04-23 Yang Zhao , Yue Xiu , Minrui Xu , Ning Wei

When implementing hierarchical federated learning over wireless networks, scalability assurance and the ability to handle both interference and device data heterogeneity are crucial. This work introduces a new two-level learning method…

Information Theory · Computer Science 2024-01-12 Seyed Mohammad Azimi-Abarghouyi , Viktoria Fodor

Edge intelligence has emerged as a promising strategy to deliver low-latency and ubiquitous services for mobile devices. Recent advances in fine-tuning mechanisms of foundation models have enabled edge intelligence by integrating low-rank…

Signal Processing · Electrical Eng. & Systems 2025-09-25 Jingyi Wang , Zhongyuan Zhao , Qingtian Wang , Zexu Li , Yue Wang , Tony Q. S. Quek

The recent development of scalable Bayesian inference methods has renewed interest in the adoption of Bayesian learning as an alternative to conventional frequentist learning that offers improved model calibration via uncertainty…

Information Theory · Computer Science 2023-08-01 Boning Zhang , Dongzhu Liu , Osvaldo Simeone , Guangxu Zhu