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Federated learning (FL) is a useful tool that enables the training of machine learning models over distributed data without having to collect data centrally. When deploying FL in constrained wireless environments, however, intermittent…

Machine Learning · Computer Science 2025-03-04 Jake B. Perazzone , Shiqiang Wang , Mingyue Ji , Kevin Chan

By harnessing the delay-Doppler (DD) resource domain, orthogonal time-frequency space (OTFS) substantially improves the communication performance under high-mobility scenarios by maintaining quasi-time-invariant channel characteristics.…

Information Theory · Computer Science 2024-11-18 Jie Chen , Xianbin Wang , Lajos Hanzo

The widespread adoption of smartphones and smart wearable devices has led to the widespread use of Centralized Federated Learning (CFL) for training powerful machine learning models while preserving data privacy. However, CFL faces…

Machine Learning · Computer Science 2025-03-18 Chengyan Jiang , Jiamin Fan , Talal Halabi , Israat Haque

Federated Learning (FL) is a rapidly growing field in machine learning that allows data to be trained across multiple decentralized devices. The selection of clients to participate in the training process is a critical factor for the…

Machine Learning · Computer Science 2023-11-14 Ala Gouissem , Zina Chkirbene , Ridha Hamila

The Open Radio Access Network (Open RAN) paradigm, and its reference architecture proposed by the O-RAN Alliance, is paving the way toward open, interoperable, observable and truly intelligent cellular networks. Crucial to this evolution is…

Networking and Internet Architecture · Computer Science 2025-10-08 Raoul Raftopoulos , Salvatore D'Oro , Tommaso Melodia , Giovanni Schembra

Device-to-device (D2D) technology is one of the key research areas in 5G/6G networks, and full-duplex (FD) D2D will further enhance its spectral efficiency (SE). In recent years, deep learning approaches have shown remarkable performance in…

Information Theory · Computer Science 2024-01-11 Xinxin Zhang , Lei Gao

Massive multiple-input multiple-output (mMIMO) communications are one of the enabling technologies of 5G and beyond networks. While prior work indicates that mMIMO networks employing time division duplexing have a significant capacity…

Signal Processing · Electrical Eng. & Systems 2020-12-17 Flavio Maschietti , Gábor Fodor , David Gesbert , Paul de Kerret

As emerging networks such as Open Radio Access Networks (O-RAN) and 5G continue to grow, the demand for various services with different requirements is increasing. Network slicing has emerged as a potential solution to address the different…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-19 Fatemeh Lotfi , Fatemeh Afghah , Jonathan Ashdown

In this paper, a deep learning (DL) framework for the optimization of the resource allocation in multi-channel cellular systems with device-to-device (D2D) communication is proposed. Thereby, the channel assignment and discrete transmit…

Information Theory · Computer Science 2020-11-26 Woongsup Lee , Robert Schober

Federated Learning (FL) is a decentralized machine learning (ML) technique that allows a number of participants to train an ML model collaboratively without having to share their private local datasets with others. When participants are…

Machine Learning · Computer Science 2023-12-19 Youssra Cheriguene , Wael Jaafar , Halim Yanikomeroglu , Chaker Abdelaziz Kerrache

Implementing federated learning (FL) algorithms in wireless networks has garnered a wide range of attention. However, few works have considered the impact of user mobility on the learning performance. To fill this research gap, firstly, we…

Machine Learning · Computer Science 2021-08-23 Chenyuan Feng , Howard H. Yang , Deshun Hu , Zhiwei Zhao , Tony Q. S. Quek , Geyong Min

Federated Learning (FL) marks a transformative approach to distributed model training by combining locally optimized models from various clients into a unified global model. While FL preserves data privacy by eliminating centralized…

Machine Learning · Computer Science 2026-01-08 Pranab Sahoo , Ashutosh Tripathi , Sriparna Saha , Samrat Mondal

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

It is anticipated that aerial-terrestrial integrated networks incorporating unmanned aerial vehicles (UAVs) mounted relays will offer improved coverage and connectivity in the beyond 5G era. Meanwhile, federated learning (FL) is a promising…

Information Theory · Computer Science 2023-03-02 Mohammed S. Al-Abiad , Md. Zoheb Hassan , Md. Jahangir Hossain

We study federated machine learning at the wireless network edge, where limited power wireless devices, each with its own dataset, build a joint model with the help of a remote parameter server (PS). We consider a bandwidth-limited fading…

Information Theory · Computer Science 2020-02-12 Mohammad Mohammadi Amiri , Deniz Gunduz

A new machine learning (ML) technique termed as federated learning (FL) aims to preserve data at the edge devices and to only exchange ML model parameters in the learning process. FL not only reduces the communication needs but also helps…

Machine Learning · Computer Science 2021-08-09 Xiang Ma , Haijian Sun , Qun Wang , Rose Qingyang Hu

We study federated machine learning (ML) at the wireless edge, where power- and bandwidth-limited wireless devices with local datasets carry out distributed stochastic gradient descent (DSGD) with the help of a remote parameter server (PS).…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-04-08 Mohammad Mohammadi Amiri , Deniz Gunduz

With the explosive growth of data and wireless devices, federated learning (FL) over wireless medium has emerged as a promising technology for large-scale distributed intelligent systems. Yet, the urgent demand for ubiquitous intelligence…

Signal Processing · Electrical Eng. & Systems 2022-05-09 Chenxi Zhong , Huiyuan Yang , Xiaojun Yuan

Federated learning (FL) is capable of performing large distributed machine learning tasks across multiple edge users by periodically aggregating trained local parameters. To address key challenges of enabling FL over a wireless fog-cloud…

Machine Learning · Computer Science 2024-10-28 Van-Dinh Nguyen , Symeon Chatzinotas , Bjorn Ottersten , Trung Q. Duong

The existing medium access control (MAC) protocol of Wi-Fi networks (i.e., carrier-sense multiple access with collision avoidance (CSMA/CA)) suffers from poor performance in dense deployments due to the increasing number of collisions and…

Information Theory · Computer Science 2021-11-18 Jiantao Xin , Wensen Xu , Yucheng Cai , Taotao Wang , Shengli Zhang , Peng Liu , Ziyang Guo , Jiajun Luo