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This paper presents a sensing management frame- work for integrated sensing and communications (ISAC) within cell-free massive multiple-input multiple-output (MIMO) systems to reduce pilot-based channel state information (CSI) acquisition…

信号处理 · 电气工程与系统科学 2026-04-22 Eren Berk Kama , Murat Babek Salman , Isaac Skog , Emil Björnson

This paper investigates a downlink multi-satellite integrated sensing and communication (ISAC) network, in which multiple satellites simultaneously transmit ISAC signals to provide communication services to ground user equipments and enable…

信号处理 · 电气工程与系统科学 2026-03-10 Jeongbin Kim , Jaehong Jo , Seunghyeon Jeon , Wonjae Shin , Yo-Seb Jeon , H. Vincent Poor

The emerging machine learning paradigm of decentralized federated learning (DFL) has the promise of greatly boosting the deployment of artificial intelligence (AI) by directly learning across distributed agents without centralized…

机器学习 · 计算机科学 2024-08-12 Yudi Huang , Tingyang Sun , Ting He

We consider downlink broadcast design for federated learning (FL) in a wireless network with imperfect channel state information (CSI). Aiming to reduce transmission latency, we propose a segmented analog broadcast (SegAB) scheme, where the…

信息论 · 计算机科学 2025-10-06 Chong Zhang , Ben Liang , Min Dong , Ali Afana , Yahia Ahmed

Machine learning (ML) has attracted a great research interest for physical layer design problems, such as channel estimation, thanks to its low complexity and robustness. Channel estimation via ML requires model training on a dataset, which…

信号处理 · 电气工程与系统科学 2021-11-16 Ahmet M. Elbir , Sinem Coleri

Unmanned aerial vehicles (UAVs) are capable of serving as flying base stations (BSs) for supporting data collection, artificial intelligence (AI) model training, and wireless communications. However, due to the privacy concerns of devices…

信号处理 · 电气工程与系统科学 2020-12-01 Helin Yang , Jun Zhao , Zehui Xiong , Kwok-Yan Lam , Sumei Sun , Liang Xiao

Identifying predictive factors for an outcome of interest via a multivariable analysis is often difficult when the data set is small. Combining data from different medical centers into a single (larger) database would alleviate this…

应用统计 · 统计学 2024-03-12 Marianne A. Jonker , Hassan Pazira , Anthony CC Coolen

This paper investigates flexible beamforming design in an integrated sensing and communication (ISAC) network with movable antennas (MAs). A bistatic radar system is integrated into a multi-user multiple-input-single-output (MU-MISO)…

信号处理 · 电气工程与系统科学 2024-05-20 Wanting Lyu , Songjie Yang , Yue Xiu , Zhongpei Zhang , Chadi Assi , Chau Yuen

The performance of federated learning (FL) over wireless networks critically depends on accurate and timely channel state information (CSI) across distributed devices. This requirement is tightly linked to how rapidly the channel gains…

信息论 · 计算机科学 2025-10-31 Mehdi Karbalayghareh , David J. Love , Christopher G. Brinton

Integrating sensing and communication (ISAC) has emerged as a cornerstone technology for predictive beamforming in 6G-enabled vehicle-to-everything (V2X) networks. However, existing ISAC paradigms rely solely on radio frequency (RF) signal,…

信号处理 · 电气工程与系统科学 2025-07-01 Chen Shang , Dinh Thai Hoang , Jiadong Yu

Cell-free (CF) integrated sensing and communication (ISAC) combines CF architecture with ISAC. CF employs distributed access points, eliminates cell boundaries, and enhances coverage, spectral efficiency, and reliability. ISAC unifies radar…

信号处理 · 电气工程与系统科学 2026-05-12 Diluka Galappaththige , Mohammadali Mohammadi , Gayan Aruma Baduge , Chintha Tellambura

Integrated sensing and communication (ISAC) unifies sensing and communication, and improves the efficiency of the spectrum, energy, and hardware. In this work, we investigate the ISAC beamforming design to maximize the mutual information…

信号处理 · 电气工程与系统科学 2023-01-12 Jin Li , Gui Zhou , Tantao Gong , Nan Liu

This paper studies power-efficient uplink transmission design for federated learning (FL) that employs over-the-air analog aggregation and multi-antenna beamforming at the server. We jointly optimize device transmit weights and receive…

信息论 · 计算机科学 2025-01-31 Faeze Moradi Kalarde , Min Dong , Ben Liang , Yahia A. Eldemerdash Ahmed , Ho Ting Cheng

Federated Learning (FL) enables decentralised model training across distributed clients without requiring data centralisation. However, the generalisation performance of the global model is usually degraded by data heterogeneity across…

机器学习 · 计算机科学 2026-05-11 Ozgu Goksu , Nicolas Pugeault

As a promising learning paradigm integrating computation and communication, federated learning (FL) proceeds the local training and the periodic sharing from distributed clients. Due to the non-i.i.d. data distribution on clients, FL model…

机器学习 · 计算机科学 2024-05-14 Zheqi Zhu , Yuchen Shi , Pingyi Fan , Chenghui Peng , Khaled B. Letaief

This research presents a novel framework integrating Flexible-Duplex (FlexD) and Integrated Sensing and Communications (ISAC) technologies to address the challenges of spectrum efficiency and resource optimization in next-generation…

信号处理 · 电气工程与系统科学 2025-04-08 Tharaka Perera , Saman Atapattu , Chathuranga Weeraddana , Jamie Evans

Federated Learning (FL) is a decentralized machine learning protocol that allows a set of participating agents to collaboratively train a model without sharing their data. This makes FL particularly suitable for settings where data privacy…

机器学习 · 计算机科学 2020-10-30 Mustafa Safa Ozdayi , Murat Kantarcioglu , Rishabh Iyer

Federated learning (FL) is a classic paradigm of 6G edge intelligence (EI), which alleviates privacy leaks and high communication pressure caused by traditional centralized data processing in the artificial intelligence of things (AIoT).…

网络与互联网体系结构 · 计算机科学 2023-11-08 Ning Chen , Zhipeng Cheng , Xuwei Fan , Bangzhen Huang , Yifeng Zhao , Lianfen Huang , Xiaojiang Du , Mohsen Guizani

Federated learning (FL) enables collaborative model training without centralizing data. However, the traditional FL framework is cloud-based and suffers from high communication latency. On the other hand, the edge-based FL framework that…

分布式、并行与集群计算 · 计算机科学 2022-10-28 Zhenxiao Zhang , Zhidong Gao , Yuanxiong Guo , Yanmin Gong

Integrated sensing and communication (ISAC) is one of the usage scenarios for the sixth generation (6G) wireless networks. In this paper, we study cooperative ISAC in cell-free multiple-input multiple-output (MIMO) systems, where multiple…

信号处理 · 电气工程与系统科学 2024-10-15 Zihuan Wang , Vincent W. S. Wong