Sensors, Vol. 19, Pages 3931: Experimental Evaluation of an RSSI-Based Localization Algorithm on IoT End-Devices

Sensors, Vol. 19, Pages 3931: Experimental Evaluation of an RSSI-Based Localization Algorithm on IoT End-Devices
Sensors doi: 10.3390/s19183931
Authors:
Rosa Pita
Ramiro Utrilla
Roberto Rodriguez-Zurrunero
Alvaro Araujo

In recent years, wireless sensor networks (WSNs) have experienced a significant growth as a fundamental part of the Internet of Things (IoT). WSNs nodes constitute part of the end-devices present in the IoT, and in many cases location data of these devices is expected by IoT applications. For this reason, many localization algorithms for WSNs have been developed in the last years, although in most cases the results provided are obtained from simulations that do not consider the resource constraints of the end-devices. Therefore, in this work we present an experimental evaluation of a received signal strength indicator (RSSI)-based localization algorithm implemented on IoT end-devices, comparing its results with those obtained from simulations. We have implemented the fuzzy ring-overlapping range-free (FRORF) algorithm with some modifications to make its operation feasible on resource-constrained devices. Multiple tests have been carried out to obtain the localization accuracy data in three different scenarios, showing the difference between simulation and real results. While the overall behaviour is similar in simulations and in real tests, important differences can be observed attending to quantitative accuracy results. In addition, the executio...

Source: Sensors - September 11, 2019 Category: Biotechnology Authors: Rosa Pita Ramiro Utrilla Roberto Rodriguez-Zurrunero Alvaro Araujo Tags: Article Source Type: research