Positioning with Dual Reconfigurable Intelligent Surfaces in Millimeter-Wave MIMO Systems

Jingwen Zhang, Zhong Zheng, Zesong Fei, Xuyan Bao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Citations (Scopus)

Abstract

The combination of reconfigurable intelligent surface (RIS) and millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) has drawn much attention for future wireless networks. In this paper, the RISs are used to assist the base station (BS) to localize the user equipment (UE) in the mmwave MIMO systems, where the reference signals sent by the UE are measured by the BS and the information of the direct UE-BS path and the reflection paths via RISs are utilized in the localization. In particular, the delay difference between the direct path and reflection path as well as the angles of each path are used to construct the triangulation needed in positioning. Therein, a two-stage positioning method with dual RISs is proposed, where in the first stage one suitable RIS is chosen to reflect signals and in the second stage location information is estimated. In particular, the optimal phase shifts of the RIS elements are obtained and the optimal RIS selection criterion is derived. Numerical results show that the proposed method achieves a localization accuracy up-to 10-510-4 meter.

Original languageEnglish
Title of host publication2020 IEEE/CIC International Conference on Communications in China, ICCC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages800-805
Number of pages6
ISBN (Electronic)9781728173276
DOIs
Publication statusPublished - 9 Aug 2020
Event2020 IEEE/CIC International Conference on Communications in China, ICCC 2020 - Chongqing, China
Duration: 9 Aug 202011 Aug 2020

Publication series

Name2020 IEEE/CIC International Conference on Communications in China, ICCC 2020

Conference

Conference2020 IEEE/CIC International Conference on Communications in China, ICCC 2020
Country/TerritoryChina
CityChongqing
Period9/08/2011/08/20

Keywords

  • Positioning
  • massive MIMO
  • millimeter-wave
  • reconfigurable intelligent surfaces

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Zhang, J., Zheng, Z., Fei, Z., & Bao, X. (2020). Positioning with Dual Reconfigurable Intelligent Surfaces in Millimeter-Wave MIMO Systems. In 2020 IEEE/CIC International Conference on Communications in China, ICCC 2020 (pp. 800-805). Article 9238887 (2020 IEEE/CIC International Conference on Communications in China, ICCC 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCC49849.2020.9238887