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. 2021 Nov 10;21(22):7472. doi: 10.3390/s21227472

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Cumulative distribution function of the RSSI for (a) backscatter outdoor and (b) backscatter indoor, and SNR for (c) backscatter outdoor and (d) backscatter indoor.