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This paper presents a novel approach to enhance communication efficiency in federated learning through clipped uniform quantization. By leveraging optimal clipping thresholds and client-specific adaptive quantization schemes, the proposed…

Machine Learning · Computer Science 2024-12-17 Zavareh Bozorgasl , Hao Chen

This paper considers over-the-air federated learning (OTA-FL). OTA-FL exploits the superposition property of the wireless medium, and performs model aggregation over the air for free. Thus, it can greatly reduce the communication cost…

Machine Learning · Computer Science 2022-05-13 Haibo Yang , Peiwen Qiu , Jia Liu , Aylin Yener

This paper studies an multi-cluster over-the-air computation (AirComp) system, where an intelligent reflecting surface (IRS) assists the signal transmission from devices to an access point (AP). The clusters are activated to compute…

Information Theory · Computer Science 2023-07-18 Yapeng Zhao , Qingqing Wu , Wen Chen , Celimuge Wu , Octavia A. Dobre

Over-the-air federated learning (OTA-FL) provides bandwidth-efficient learning by leveraging the inherent superposition property of wireless channels. Personalized federated learning balances performance for users with diverse datasets,…

Information Theory · Computer Science 2024-01-23 Jiayu Mao , Aylin Yener

Hybrid beamforming for frequency-selective channels is a challenging problem as the phase shifters provide the same phase shift to all of the subcarriers. The existing approaches solely rely on the channel's frequency response and the…

Information Theory · Computer Science 2019-03-13 Sohail Payami , Mathini Sellathurai , Konstantinos Nikitopoulos

Over-the-air federated learning (OTA-FL) offers an exciting new direction over classical FL by averaging model weights using the physics of analog signal propagation. Since each participant broadcasts its model weights concurrently in time…

We propose two cooperative beamforming frameworks based on federated learning (FL) for multi-cell integrated sensing and communications (ISAC) systems. Our objective is to address the following dilemma in multicell ISAC: 1) Beamforming…

Signal Processing · Electrical Eng. & Systems 2025-01-29 Lai Jiang , Kaitao Meng , Murat Temiz , Jiaming Hu , Christos Masouros

Over-the-air federated learning (OTA-FL) unifies communication and model aggregation by leveraging the inherent superposition property of the wireless medium. This strategy can enable scalable and bandwidth-efficient learning via…

Information Theory · Computer Science 2024-12-05 Jiayu Mao , Aylin Yener

Recent advances in federated learning have shown that asynchronous variants can be faster and more scalable than their synchronous counterparts. However, their design does not include quantization, which is necessary in practice to deal…

Machine Learning · Computer Science 2024-10-08 Tomas Ortega , Hamid Jafarkhani

In federated learning (FL), heterogeneity among the local dataset distributions of clients can result in unsatisfactory performance for some, leading to an unfair model. To address this challenge, we propose an over-the-air fair federated…

Machine Learning · Computer Science 2025-01-08 Shayan Mohajer Hamidi , Ali Bereyhi , Saba Asaad , H. Vincent Poor

Over-the-air computation (AirComp) has recently been recognized as a promising scheme for a fusion center to achieve fast distributed data aggregation in wireless networks via exploiting the superposition property of multiple-access…

Signal Processing · Electrical Eng. & Systems 2021-06-23 Lukuan Xing , Yong Zhou , Yuanming Shi

Federated Learning (FL) enables participant devices to collaboratively train deep learning models without sharing their data with the server or other devices, effectively addressing data privacy and computational concerns. However, FL faces…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-09-30 Asadullah Tariq , Tariq Qayyum , Mohamed Adel Serhani , Farag Sallabi , Ikbal Taleb , Ezedin S. Barka

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

In this paper, we propose a hybrid learning framework that combines federated and split learning, termed semi-federated learning (SemiFL), in which over-the-air computation is utilized for gradient aggregation. A key idea is to…

Signal Processing · Electrical Eng. & Systems 2026-02-26 Jingheng Zheng , Hui Tian , Wanli Ni , Yang Tian , Ping Zhang

Due to its high communication efficiency, over-the-air computation (AirComp) has been expected to carry out various computing tasks in the next-generation wireless networks. However, up to now, most applications of AirComp are explored in…

Signal Processing · Electrical Eng. & Systems 2023-11-14 Xin Xie , Cunqinq Hua , Jianan Hong , Yuejun Wei

Full-duplex (FD) systems have the capability to transmit and receive at the same time in the same frequency band. FD systems can reduce congestion and latency and improve coverage and spectral efficiency. As a relay, they can increase range…

Signal Processing · Electrical Eng. & Systems 2021-10-26 Elyes Balti , Brian L. Evans

Gbps wireless transmission over long distance at high frequency bands has great potential for 5G and beyond, as long as high beamforming gain could be delivered at affordable cost to combat the severe path loss. With limited number of RF…

Information Theory · Computer Science 2019-10-25 Jinfeng Du , Marcin Rybakowski , Kamil Bechta , Reinaldo A. Valenzuela

Over-the-Air Computation is a beyond-5G communication strategy that has recently been shown to be useful for the decentralized training of machine learning models due to its efficiency. In this paper, we propose an Over-the-Air federated…

Machine Learning · Computer Science 2024-03-08 Halil Yigit Oksuz , Fabio Molinari , Henning Sprekeler , Joerg Raisch

The rapid development of Unmanned aerial vehicles (UAVs) technology has spawned a wide variety of applications, such as emergency communications, regional surveillance, and disaster relief. Due to their limited battery capacity and…

Machine Learning · Computer Science 2025-01-22 Yubo Yang , Tao Yang , Xiaofeng Wu , Bo Hu

The proliferation of Internet of Things (IoT) systems demands scalable artificial intelligence (AI) solutions that can operate in computing-heterogeneous environments with diverse hardware capabilities and non-independent and identically…

Networking and Internet Architecture · Computer Science 2025-11-19 Wanli Ni , Hui Tian