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Reconfigurable Intelligent Surfaces for 6G IoT Wireless Positioning: A Contemporary Survey
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  • Rui Chen ,
  • Mengjie Liu ,
  • Yilong Hui ,
  • Nan Cheng ,
  • Jiandong Li
Mengjie Liu
Xidian University

Corresponding Author:[email protected]

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Yilong Hui
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Nan Cheng
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Jiandong Li
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Abstract

The sixth-generation (6G) wireless communication system is expected to integrate communication, intelligence, sensing, positioning, control, and calculation to adapt to time-critical, ultra-reliable, and energy-saving data delivery, as well as accurate positioning of personnel and equipment, serving the Internet of Things (IoT). On one hand, reconfigurable intelligent surface (RIS) can intelligently manipulate radio waves and is considered to be one of the candidate technologies for the 6G wireless communication. Hence, there are more and more surveys on RIS-assisted communications. On the other hand, the potential of RIS in positioning has attracted growing attention, and articles on RIS-assisted positioning have been blown out. Therefore, it is time to review this literature to understand the potential of RIS positioning, research status, and point out the direction for future research. This paper first explains the working principle and channel model of RIS and summarizes some characteristics of RIS suitable for positioning. Then we give a concise review and classification of existing RIS positioning research. Finally, we put forward our views on the future research challenges and attractive directions for RIS-aided wireless positioning technology.
01 Dec 2022Published in IEEE Internet of Things Journal volume 9 issue 23 on pages 23570-23582. 10.1109/JIOT.2022.3203890