Low-power MIMO guided-wave communication

  • This article demonstrates the use of guided elastic waves (GEW) for multiple-in and multiple-out (MIMO) data communication in the framework of a structural health monitoring (SHM) system. Therefore, miniaturized low-voltage communication nodes have been developed. They are arranged in a spatially distributed and permanently installed network. Wireless exchange of encoded information across a metallic plate and a stiffened carbon-fiber reinforced plastics (CFRP) structure is investigated. A combination of square-wave excitation sequences and frequency-division multiplexing (FDM) is explored for parallel communication with multiple nodes. Moreover, the impact of the excitation-sequence length on the reliability of information transmission is studied in view of future energy-aware application scenarios. The presented system achieves in both studied structures error-free transmission at a data rate of 0.17 kbps (per carrier frequency) with a power consumption of 224 mW.

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Author:Christian Kexel, Nicola Testoni, Federica Zonzini, Jochen Moll, Luca De Marchi
Parent Title (English):IEEE access
Publisher:Institute of Electrical and Electronics Engineers
Place of publication:New York, NY
Document Type:Article
Date of Publication (online):2020/12/03
Date of first Publication:2020/12/03
Publishing Institution:Universit├Ątsbibliothek Johann Christian Senckenberg
Release Date:2021/08/18
Tag:Lamb waves; digital communications; structural health monitoring
Page Number:12
First Page:217425
Last Page:217436
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - Namensnennung 4.0