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Over-the-air computation (AirComp) becomes a promising approach for fast wireless data aggregation via exploiting the superposition property in a multiple access channel. To further overcome the unfavorable signal propagation conditions for…

Information Theory · Computer Science 2019-05-01 Tao Jiang , Yuanming Shi

Over-the-air computation (AirComp) enables fast wireless data aggregation at the receiver through concurrent transmission by sensors in the application of Internet-of-Things (IoT). To further improve the performance of AirComp under…

Information Theory · Computer Science 2022-06-15 Wenhui Zhang , Jindan Xu , Wei Xu , Xiaohu You , Weijie Fu

Over-the-air computation (AirComp) is emerging as a promising technology for wireless data aggregation. However, its performance is hampered by users with poor channel conditions. To mitigate such a performance bottleneck, this paper…

Information Theory · Computer Science 2023-12-01 Deyou Zhang , Ming Xiao , Mikael Skoglund , H. Vincent Poor

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

By leveraging the waveform superposition property of the multiple access channel, over-the-air computation (AirComp) enables the execution of digital computations through analog means in the wireless domain, leading to faster processing and…

Information Theory · Computer Science 2025-08-22 Meng Hua , Chenghong Bian , Haotian Wu , Deniz Gündüz

Over-the-air computation (AirComp) is an efficient solution to enable federated learning on wireless channels. AirComp assumes that the wireless channels from different devices can be controlled, e.g., via transmitter-side phase…

Signal Processing · Electrical Eng. & Systems 2020-04-21 Daesung Yu , Seok-Hwan Park , Osvaldo Simeone , Shlomo Shamai

The vision of 6G networks aims to enable edge inference by leveraging ubiquitously deployed artificial intelligence (AI) models, facilitating intelligent environmental perception for a wide range of applications. A critical operation in…

Networking and Internet Architecture · Computer Science 2026-01-19 Yang Fu , Peng Qin , Liming Chen , Xianchao Zhang , Yifei Wang

This paper investigates the problem of model aggregation in federated learning systems aided by multiple reconfigurable intelligent surfaces (RISs). The effective integration of computation and communication is achieved by over-the-air…

Information Theory · Computer Science 2021-07-09 Wanli Ni , Yuanwei Liu , Zhaohui Yang , Hui Tian , Xuemin Shen

Over-the-air computation (AirComp) provides a promising way to support ultrafast aggregation of distributed data. However, its performance cannot be guaranteed in long-distance transmission due to the distortion induced by the channel…

Signal Processing · Electrical Eng. & Systems 2021-01-26 Min Fu , Yong Zhou , Yuanming Shi , Ting Wang , Wei Chen

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…

Information Theory · Computer Science 2024-09-26 Wei Shi , Jiacheng Yao , Jindan Xu , Wei Xu , Lexi Xu , Chunming Zhao

One of the main challenges facing Internet of Things (IoT) networks is managing interference caused by the large number of devices communicating simultaneously, particularly in multi-cluster networks where multiple devices simultaneously…

Signal Processing · Electrical Eng. & Systems 2025-10-07 Lucas Sempéré , Yue Bi , Yue Wu , Pengwenlong Gu , Selma Boumerdassi

Over-the-air computation (AirComp) seamlessly integrates communication and computation by exploiting the waveform superposition property of multiple-access channels. Different from the existing works that focus on transceiver design of…

Signal Processing · Electrical Eng. & Systems 2021-06-02 Min Fu , Yong Zhou , Yuanming Shi , Wei Chen , Rui Zhang

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…

Information Theory · Computer Science 2025-01-28 Wei Shi , Jiacheng Yao , Wei Xu , Jindan Xu , Xiaohu You , Yonina C. Eldar , Chunming Zhao

Over-the-air computation (AirComp) leverages the signal-superposition characteristic of wireless multiple access channels to perform mathematical computations. Initially introduced to enhance communication reliability in interference…

Signal Processing · Electrical Eng. & Systems 2025-11-05 Ana Pérez-Neira , Marc Martinez-Gost , Alphan Şahin , Saeed Razavikia , Carlo Fischione , Kaibin Huang

To support the unprecedented growth of the Internet of Things (IoT) applications, tremendous data need to be collected by the IoT devices and delivered to the server for further computation. By utilizing the same signals for both radar…

Information Theory · Computer Science 2022-02-23 Xiaoyang Li , Fan Liu , Ziqin Zhou , Guangxu Zhu , Shuai Wang , Kaibin Huang , Yi Gong

The rapid advancement of artificial intelligence technologies has given rise to diversified intelligent services, which place unprecedented demands on massive connectivity and gigantic data aggregation. However, the scarce radio resources…

Signal Processing · Electrical Eng. & Systems 2024-07-11 Zhibin Wang , Yapeng Zhao , Yong Zhou , Yuanming Shi , Chunxiao Jiang , Khaled B. Letaief

The integration of intelligent reflecting surface (IRS) into over-the-air computation (AirComp) is an effective solution for reducing the computational mean squared error (MSE) via its high passive beamforming gain. Prior works on IRS aided…

Information Theory · Computer Science 2024-05-10 Guangji Chen , Jun Li , Qingqing Wu , Meng Hua , Kaitao Meng , Zhonghao Lyu

Over-the-air computation (AirComp) has been recognized as a promising technique in Internet-of-Things (IoT) networks for fast data aggregation from a large number of wireless devices. However, as the number of devices becomes large, the…

Signal Processing · Electrical Eng. & Systems 2020-06-09 Xiongfei Zhai , Xihan Chen , Jie Xu , Derrick Wing Kwan Ng

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).…

Signal Processing · Electrical Eng. & Systems 2023-01-06 Xiongfei Zhai , Guojun Han , Yunlong Cai , Yuanwei Liu , Lajos Hanzo

Reconfigurable intelligent surface (RIS)-empowered communication is a revolutionary technology that enables to manipulate wireless propagation environment via smartly controllable low-cost reflecting surfaces. However, in order to…

Information Theory · Computer Science 2022-12-13 Zehra Yigit , Ertugrul Basar , Ibrahim Altunbas
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