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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 (http://creativecommons.org/licenses/by/4.0/).
Zone allocation for Received Signal Strength Indication estimation on the basis of minimum path-loss (a) Combined path loss map of sensors and corresponding access point. (b) Calculated mask representing the device designation of a given region for the estimation of the radio map.