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DoA estimation with a single antenna and a few low-cost backscattering tags

Vougioukas Georgios, Bletsas Aggelos

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URIhttp://purl.tuc.gr/dl/dias/B4850798-2D71-440B-BDEB-9DA16E4E610F-
Identifierhttps://doi.org/10.1109/TCOMM.2022.3204828-
Identifierhttps://ieeexplore.ieee.org/document/9880919-
Languageen-
Extent12 pagesen
TitleDoA estimation with a single antenna and a few low-cost backscattering tagsen
CreatorVougioukas Georgiosen
CreatorΒουγιουκας Γεωργιοςel
CreatorBletsas Aggelosen
CreatorΜπλετσας Αγγελοςel
PublisherInstitute of Electrical and Electronics Engineersen
Content SummaryBackscatter radio utilizes the reflection that an electromagnetic wave undergoes when it impinges an unmatched-to-a-load antenna, in order to achieve ultra-low-power communication. This work exploits principles commonly found in the ultra-low-power, backscatter communication literature, offering multi-element array functionalities to a single-antenna receiver. A small number of simple, switching backscattering tags deployed in space, emulate a distributed, multi-element antenna array by copying a transmitter’s signal to distinct frequency bands. A receiver can then obtain independent observations of the same signal by discriminating said bands. Using the backscatter tag-based array, the direction of arrival (DoA) estimation problem is addressed without the cost of multiple RF front ends or hardware modifications, at either end of a wireless communication link. The feasibility of the idea was examined through both simulations and experimental deployments. An absolute error of ≈20 degrees was observed when utilizing 5 custom-built backscattering tags, while simulations showed that more than 10 tags can offer error of less than 5 degrees.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2023-11-09-
Date of Publication2022-
SubjectBackscatter radioen
SubjectDirection of arrival estimationen
SubjectAntenna arraysen
Bibliographic CitationG. Vougioukas and A. Bletsas, "DoA estimation with a single antenna and a few low-cost backscattering tags," IEEE Trans. Commun., vol. 70, no. 10, pp. 6849-6860, Oct. 2022, doi: 10.1109/TCOMM.2022.3204828.en

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