Indoor wireless signal coverage and enhancement based on passive reconfigurable intelligent metasurface

Haixia LIU; Hao YI; Xiangjin MA; Shuyao YUE; Xudong KONG; Pei MA; Yuxin ZENG; Long LI

doi:10.11959/j.issn.1000-436x.2022229

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Indoor wireless signal coverage and enhancement based on passive reconfigurable intelligent metasurface

Topics: Applications of Information Metamaterials in Mobile Communications | 更新时间：2024-06-05

- Indoor wireless signal coverage and enhancement based on passive reconfigurable intelligent metasurface
- Journal on Communications Vol. 43, Issue 12, Pages: 32-44(2022)
- 作者机构：
  
  西安电子科技大学超高速电路设计与电磁兼容教育部重点实验室，陕西西安 710071
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(62288101);The National Key Research and Development Program of China(2021YFA1401001);The Key Research and Development Program of Shaanxi for Science and Technology Innovation Team(2021TD-07);Outstanding Youth Science Foundation of Shaanxi Province(2019JC-15)
- DOI：10.11959/j.issn.1000-436x.2022229
  CLC： TN92
- Online First：2022-12，
  
  Published：25 December 2022
- 稿件说明：
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Haixia LIU, Hao YI, Xiangjin MA, et al. Indoor wireless signal coverage and enhancement based on passive reconfigurable intelligent metasurface[J]. Journal on Communications, 2022, 43(12): 32-44.
DOI：

Haixia LIU, Hao YI, Xiangjin MA, et al. Indoor wireless signal coverage and enhancement based on passive reconfigurable intelligent metasurface[J]. Journal on Communications, 2022, 43(12): 32-44. DOI： 10.11959/j.issn.1000-436x.2022229.

摘要

可重构智能超表面（RIS）是一种新型人工电磁材料，可灵活调控电磁波的频率、幅度、相位、极化、传播方向、波形等特性。在无线通信领域，可利用RIS重构无线通信信道，实现无线信号的盲区覆盖，提高通信质量。首先，概述了RIS技术的发展和研究现状，分析了RIS的关键技术和应用场景。然后，提出了一种新型无源RIS，通过无源编码和拼接原理实现了RIS口径可重构和波束可重构特性，具有低成本、低功耗、低复杂度的优点。最后，在实际室内环境下进行了基于无源RIS的室内无线信号盲区覆盖增强实验。通过仿真与实测对比，证明了无源可拼接超表面在无线通信补盲场景应用中的有效性。此外，针对5G/6G毫米波通信，设计了双层十字交叉振子无源RIS，应用到室内典型的L形走廊场景，验证了无源RIS对室内无线信号覆盖的增强效果。

Abstract

Reconfigurable intelligent metasurface (RIS) is a new type of artificial electromagnetic metamaterial

which can control the frequency

amplitude

phase

polarization

propagation direction and wave type of electromagnetic wave flexibly.In the field of wireless communication

RIS can be used to reconstruct the wireless communication channel to achieve blind coverage of wireless signals and improve the communication quality.First

the development and research status of RIS

the key technologies and application scenarios of RIS were summarized and analyzed.Then

a new passive RIS was proposed to realize the characteristics of the aperture reconfiguration and beam reconfiguration through passive coding and splicing principle

which had the advantages of low cost

low power consumption and low complexity.Finally

the blind area coverage enhancement experiment of indoor wireless signal based on passive reflection metasurface was carried out.The effectiveness of passive splicing metasurface in wireless communication blind coverage scenarios was proved by comparison between simulation and field measurement.In addition

for 5G/6G millimeter wave communication

the passive RIS with double-layer cross dipole elements was designed and applied to typical indoor L-shaped corridor scene to verify the enhancement effect of indoor wireless signal coverage.

关键词

Keywords

references

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