arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.02181cs.NIcs.ITeess.SPmath.IT
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大规模IoT中无线数据聚合的空中计算

Over-the-Air Computing for Wireless Data Aggregation in Massive IoT

Guangxu Zhu, Jie Xu, Kaibin Huang, Shuguang Cui

摘要:

无线数据聚合(wireless data aggregation,WDA),指的是聚合分布在设备(例如,传感器和智能手机),是5G及以后机器类型通信中的常见操作,以支持物联网(IoT),这为分布式传感,学习和控制等多样化应用奠定了基础。传统的WDA技术是基于通信和计算分离的原理设计的,在有限的无线资源和新兴应用(例如,自动驾驶)施加的严格延迟约束下,难以适应大规模接入。为了解决这个问题,空中计算(AirComp)正在开发作为一种新的WDA解决方案,通过无缝集成计算和通信。通过利用多路访问信道的波形叠加特性,AirComp将空气变成计算机,用于在许多设备上计算和传输分布式数据的功能,从而允许在大规模设备上进行低延迟WDA。鉴于人们对AirComp的兴趣日益增长,本文通过介绍基本原理,讨论先进技术和应用,并确定有前途的研究机会,及时概述了该技术。

英文摘要:

Wireless data aggregation (WDA), referring to aggregating data distributed at devices (e.g., sensors and smartphone), is a common operation in 5G-and-beyond machine-type communications to support Internet-of-Things (IoT), which lays the foundation for diversified applications such as distributed sensing, learning, and control. Conventional WDA techniques that are designed based on a separated-communication-and-computation principle encounter difficulty in accommodating the massive access under the limited radio resource and stringent latency constraints imposed by emerging applications (e.g, auto-driving). To address this issue, over-the-air computation (AirComp) is being developed as a new WDA solution by seamlessly integrating computation and communication. By exploiting the waveform superposition property of a multiple-access channel, AirComp turns the air into a computer for computing and communicating functions of distributed data at many devices, thereby allowing low-latency WDA over massive devices. In view of growing interests on AirComp, this article provides a timely overview of the technology by introducing basic principles, discussing advanced techniques and applications, and identifying promising research opportunities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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