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Learning from the collective knowledge of data dispersed across private sources can provide neural networks with enhanced generalization capabilities. Federated learning, a method for collaboratively training a machine learning model across…

Machine Learning · Computer Science 2024-05-20 Matt Gorbett , Hossein Shirazi , Indrakshi Ray

Federated learning (FL) is an emerging technique that trains massive and geographically distributed edge data while maintaining privacy. However, FL has inherent challenges in terms of fairness and computational efficiency due to the rising…

Machine Learning · Computer Science 2023-04-28 Yingchun Wang , Jingcai Guo , Jie Zhang , Song Guo , Weizhan Zhang , Qinghua Zheng

This paper investigates an active reconfigurable intelligent surface (RIS)-aided mobile edge computing (MEC) system. Compared with passive RIS, the active RIS is equipped with active reflective amplifier, which can effectively circumvent…

Signal Processing · Electrical Eng. & Systems 2022-09-08 Zhangjie Peng , Ruisong Weng , Zhenkun Zhang , Cunhua Pan , Jiangzhou Wang

Wireless traffic is exploding, due to the myriad of new connections and the exchange of capillary data at the edge of the networks to operate real-time processing and decision making. The latter especially affects the uplink traffic, which…

Signal Processing · Electrical Eng. & Systems 2022-11-24 Fatima Ezzahra Airod , Mattia Merluzzi , Antonio Clemente , Emilio Calvanese Strinati

Federated Learning (FL) is a distributed machine learning technique, where each device contributes to the learning model by independently computing the gradient based on its local training data. It has recently become a hot research topic,…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-01-28 Afaf Taïk , Soumaya Cherkaoui

Fluid reconfigurable intelligent surfaces (FRIS) enable joint position and phase reconfigurability by integrating fluid antennas (FA) with conventional reconfigurable intelligent surfaces (RIS). In this paper, we propose a novel FRIS-based…

Information Theory · Computer Science 2026-03-13 Peng Zhang , Jian Dang , Miaowen Wen , Ziyang Liu , Kai-Kit Wong , Chen Zhao , Huaifeng Shi , Zaichen Zhang

Federated Learning (FL) has emerged as a new paradigm for training machine learning models distributively without sacrificing data security and privacy. Learning models on edge devices such as mobile phones is one of the most common use…

Machine Learning · Computer Science 2023-02-10 Sixing Yu , Phuong Nguyen , Ali Anwar , Ali Jannesari

We consider channel estimation in systems equipped with a reconfigurable intelligent surface (RIS). In order to illuminate the additional cascaded channel as compared to systems without a RIS, commonly an unaffordable amount of pilot…

Signal Processing · Electrical Eng. & Systems 2023-01-27 Benedikt Fesl , Andreas Faika , Nurettin Turan , Michael Joham , Wolfgang Utschick

Reconfigurable intelligent surface (RIS)-empowered communications is on the rise and is a promising technology envisioned to aid in 6G and beyond wireless communication networks. RISs can manipulate impinging waves through their…

Signal Processing · Electrical Eng. & Systems 2022-05-19 Emre Arslan , Ibrahim Yildirim , Fatih Kilinc , Ertugrul Basar

Federated learning (FL) is a distributed learning paradigm that enables a large number of devices to collaboratively learn a model without sharing their raw data. Despite its practical efficiency and effectiveness, the iterative on-device…

Machine Learning · Computer Science 2020-12-16 Bing Luo , Xiang Li , Shiqiang Wang , Jianwei Huang , Leandros Tassiulas

Federated learning (FL) has been a promising approach in the field of medical imaging in recent years. A critical problem in FL, specifically in medical scenarios is to have a more accurate shared model which is robust to noisy and out-of…

Machine Learning · Computer Science 2020-08-19 Yousef Yeganeh , Azade Farshad , Nassir Navab , Shadi Albarqouni

Federated learning (FL) enables collaborative learning of computer vision models, where privacy and regulatory constraints prevent centralizing data across devices or organizations. However, practical FL deployments often exhibit severe…

Machine Learning · Computer Science 2026-05-20 Asim Ukaye , Nurbek Tastan , Mubarak Abdu-Aguye , Karthik Nandakumar

Reconfigurable intelligent surface (RIS) provides a promising way to build the programmable wireless transmission environments in the future. Owing to the large number of reflecting elements used at the RIS, joint optimization for the…

Information Theory · Computer Science 2021-01-11 Xiaoyan Ma , Shuaishuai Guo , Haixia Zhang , Yuguang Fang , Dongfeng Yuan

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

Over-the-air computation (AirComp) is a promising technology that is capable of achieving fast data aggregation in Internet of Things (IoT) networks. The mean-squared error (MSE) performance of AirComp is bottlenecked by the unfavorable…

Information Theory · Computer Science 2020-09-17 Wenzhi Fang , Min Fu , Kunlun Wang , Yuanming Shi , Yong Zhou

Intelligent reflecting surface (IRS) has been widely recognized as an efficient technique to reconfigure the electromagnetic environment in favor of wireless communication performance. In this paper, we propose a new application of IRS for…

Signal Processing · Electrical Eng. & Systems 2023-01-24 Peilan Wang , Weidong Mei , Jun Fang , Rui Zhang

Edge computing allows artificial intelligence and machine learning models to be deployed on edge devices, where they can learn from local data and collaborate to form a global model. Federated learning (FL) is a distributed machine learning…

Machine Learning · Computer Science 2024-05-03 Chris Xing Tian , Yibing Liu , Haoliang Li , Ray C. C. Cheung , Shiqi Wang

The proliferation of low-earth-orbit (LEO) satellite networks leads to the generation of vast volumes of remote sensing data which is traditionally transferred to the ground server for centralized processing, raising privacy and bandwidth…

Signal Processing · Electrical Eng. & Systems 2024-04-03 Yuanming Shi , Li Zeng , Jingyang Zhu , Yong Zhou , Chunxiao Jiang , Khaled B. Letaief

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

The reconfigurable intelligent surface (RIS) is a promising technology for next-generation wireless communication. It comprises many passive antennas, which reflect signals from the transmitter to the receiver with adjusted phases without…

Signal Processing · Electrical Eng. & Systems 2023-01-18 Bile Peng , Finn Siegismund-Poschmann , Eduard A. Jorswieck