Toward Ubiquitous Sensing and Localization With Reconfigurable Intelligent Surfaces
Toward Ubiquitous Sensing and Localization With Reconfigurable Intelligent Surfaces
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DOI：
10.1109/jproc.2022.3169771
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发表时间：
2022-09
影响因子：
20.6
通讯作者：
Hongliang Zhang;Boya Di;Kaigui Bian;Zhu Han;H. Poor;Lingyang Song
中科院分区：
文献类型：
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作者：
Hongliang Zhang;Boya Di;Kaigui Bian;Zhu Han;H. Poor;Lingyang Song
在未来的蜂窝系统中，无线定位和传感功能将内置在特定应用中，例如导航、运输和医疗保健，并支持灵活和无缝的连接。在这一趋势的推动下，出现了对精细分辨率传感解决方案和厘米级定位精度的需求，而当前无线系统的精度受到传播环境质量的限制。近年来，随着新材料的发展，可重构智能表面（RISs）为重塑和控制环境的电磁特性提供了机会，可用于提高无线传感和定位的性能。在本教程中，我们将首先回顾利用无线信号进行传感和定位的背景和动机。接下来，我们将介绍如何将RIS纳入传感和定位的应用，包括关键挑战和使能技术，然后，将介绍一些案例研究。最后，对未来的研究方向进行了展望。
In future cellular systems, wireless localization and sensing functions will be built-in for specific applications, e.g., navigation, transportation, and healthcare, and to support flexible and seamless connectivity. Driven by this trend, the need for fine-resolution sensing solutions and centimeter-level localization accuracy arises, while the accuracy of current wireless systems is limited by the quality of the propagation environment. Recently, with the development of new materials, reconfigurable intelligent surfaces (RISs) provide an opportunity to reshape and control the electromagnetic characteristics of the environment, which can be utilized to improve the performance of wireless sensing and localization. In this tutorial, we will first review the background and motivation for utilizing wireless signals for sensing and localization. Next, we will introduce how to incorporate RIS into applications of sensing and localization, including key challenges and enabling techniques, and then, some case studies will be presented. Finally, future research directions will also be discussed.