Open AccessAccuracy analysis of BLE beacon-based localization in smart buildings
Author(s) -
Rosen Ivanov
Publication year - 2021
Publication title -
journal of ambient intelligence and smart environments
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.381
H-Index - 29
eISSN - 1876-1372
pISSN - 1876-1364
DOI - 10.3233/ais-210607
Subject(s) - beacon , computer science , bluetooth low energy , bluetooth , noise (video) , real time computing , software deployment , wireless , visitor pattern , algorithm , artificial intelligence , telecommunications , image (mathematics) , programming language , operating system
The majority of services that deliver personalized content in smart buildings require accurate localization of their clients. This article presents an analysis of the localization accuracy using Bluetooth Low Energy (BLE) beacons. The aim is to present an approach to create accurate Indoor Positioning Systems (IPS) using algorithms that can be implemented in real time on platforms with low computing power. Parameters on which the localization accuracy mostly depends are analyzed: localization algorithm, beacons’ density, deployment strategy, and noise in the BLE channels. An adaptive algorithm for pre-processing the signals from the beacons is proposed, which aims to reduce noise in beacon’s data and to capture visitor’s dynamics. The accuracy of five range-based localization algorithms in different use case scenarios is analyzed. Three of these algorithms are specially designed to be less sensitive to noise in radio channels and require little computing power. Experiments conducted in a simulated and real environment show that using proposed algorithms the localization accuracy less than 1 m can be obtained.