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Over-the-air federated learning (OTA-FL) integrates communication and model aggregation by exploiting the innate superposition property of wireless channels. The approach renders bandwidth efficient learning, but requires care in handling…

信息论 · 计算机科学 2023-09-19 Jiayu Mao , Aylin Yener

Over-the-air computation (AirComp) integrates analog communication with task-oriented computation, serving as a key enabling technique for communication-efficient federated learning (FL) over wireless networks. However, AirComp-enabled FL…

信息论 · 计算机科学 2024-09-26 Wei Shi , Jiacheng Yao , Jindan Xu , Wei Xu , Lexi Xu , Chunming Zhao

Over-the-air computation (OAC) leverages the physical superposition property of wireless multiple access channels (MACs) to compute functions while communication occurs, enabling scalable and low-latency processing in distributed networks.…

信号处理 · 电气工程与系统科学 2025-06-24 Saeed Razavikia , Carlo Fischione

Over-the-air computation (AirComp) integrates analog communication with task-oriented computation, serving as a key enabling technique for communication-efficient federated learning (FL) over wireless networks. However, owing to its analog…

信息论 · 计算机科学 2025-01-28 Wei Shi , Jiacheng Yao , Wei Xu , Jindan Xu , Xiaohu You , Yonina C. Eldar , Chunming Zhao

Communication and computation are often viewed as separate tasks. This approach is very effective from the perspective of engineering as isolated optimizations can be performed. However, for many computation-oriented applications, the main…

信息论 · 计算机科学 2023-04-04 Alphan Sahin , Rui Yang

This paper analyses the performance of reconfigurable intelligent surface (RIS)-assisted device-to-device (D2D) communication systems, focusing on addressing co-channel interference, a prevalent issue due to the frequency reuse of sidelink…

信号处理 · 电气工程与系统科学 2024-11-15 Hamid Amiriara , Farid Ashtiani , Mahtab Mirmohseni , Masoumeh Nasiri-Kenari , Behrouz Maham

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…

信息论 · 计算机科学 2020-09-17 Wenzhi Fang , Min Fu , Kunlun Wang , Yuanming Shi , Yong Zhou

Reconfigurable Intelligent Surfaces (RIS) are programmable metasurfaces utilizing sub-wavelength meta-atoms and a controller for precise electromagnetic wave manipulation. This work introduces an innovative channel coding scheme, termed…

信号处理 · 电气工程与系统科学 2024-08-20 Yingzhe Hui , Shuyi Chen , Yifan Qin , Weixiao Meng , Qiushi Zhang , Wei Jin

Federated edge learning (FEEL) enables distributed model training across wireless devices without centralising raw data, but deployment is constrained by the wireless uplink. A promising direction is over-the-air (OTA) aggregation, which…

机器学习 · 计算机科学 2025-09-23 Antonio Tarizzo , Mohammad Kazemi , Deniz Gündüz

This paper presents the first orthogonal frequency-division multiplexing(OFDM)-based digital over-the-air computation (AirComp) system for wireless federated edge learning, where multiple edge devices transmit model data simultaneously…

信息论 · 计算机科学 2023-07-06 Lizhao You , Xinbo Zhao , Rui Cao , Yulin Shao , Liqun Fu

Neural differential equations are a promising new member in the neural network family. They show the potential of differential equations for time series data analysis. In this paper, the strength of the ordinary differential equation (ODE)…

机器学习 · 计算机科学 2020-05-21 Mansura Habiba , Barak A. Pearlmutter

Device-to-device (D2D) communications offers high spectral efficiency, low energy consumption and transmission latency. However, one of the main limitations of D2D communications is co-channel interference from underlaying wireless system.…

信号处理 · 电气工程与系统科学 2023-08-02 Wali Ullah Khan , Eva Lagunas , Asad Mahmood , Zain Ali , Symeon Chatzinotas , Björn Ottersten

Edge-device co-inference, which concerns the cooperation between edge devices and an edge server for completing inference tasks over wireless networks, has been a promising technique for enabling various kinds of intelligent services at the…

信息论 · 计算机科学 2024-07-02 Xiang Jiao , Dingzhu Wen , Guangxu Zhu , Wei Jiang , Wu Luo , Yuanming Shi

Reconfigurable intelligent surface (RIS) can manipulate the wireless communication environment by controlling the coefficients of RIS elements. However, due to the large number of passive RIS elements without signal processing capability,…

信息论 · 计算机科学 2021-01-26 Xiuhong Wei , Decai Shen , Linglong Dai

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…

信息论 · 计算机科学 2024-12-05 Jiayu Mao , Aylin Yener

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…

信号处理 · 电气工程与系统科学 2023-01-18 Bile Peng , Finn Siegismund-Poschmann , Eduard A. Jorswieck

The performance of over-the-air computation (AirComp) systems degrades due to the hostile channel conditions of wireless devices (WDs), which can be significantly improved by the employment of reconfigurable intelligent surfaces (RISs).…

信号处理 · 电气工程与系统科学 2023-01-06 Xiongfei Zhai , Guojun Han , Yunlong Cai , Yuanwei Liu , Lajos Hanzo

Neural ordinary differential equations (Neural ODEs) propose the idea that a sequence of layers in a neural network is just a discretisation of an ODE, and thus can instead be directly modelled by a parameterised ODE. This idea has had…

机器学习 · 计算机科学 2024-05-07 Christina Runkel , Ander Biguri , Carola-Bibiane Schönlieb

In this paper, we focus on the reconfigurable intelligent surface (RIS)-enhanced two-way device-to-device (D2D) multi-pair orthogonal-frequency-division-multiplexing (OFDM) communication systems. Specifically, we maximize the minimum…

信号处理 · 电气工程与系统科学 2020-05-06 Chandan Pradhan , Ang Li , Lingyang Song , Jun Li , Branka Vucetic , Yonghui Li

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…

信号处理 · 电气工程与系统科学 2022-05-19 Emre Arslan , Ibrahim Yildirim , Fatih Kilinc , Ertugrul Basar