Bluetooth Low Energy Dataset Using In-Phase and Quadrature Samples for Indoor Localization

Abstract

One significant challenge in research is to collect a large amount of data and learn the underlying relationship between the input and the output variables. This article outlines the process of collecting and validating a dataset designed to determine the angle of arrival (AoA) using Bluetooth low energy (BLE) technology. The data, collected in a laboratory setting, are intended to approximate real-world industrial scenarios. This article discusses the data collection process, the structure of the dataset, and the methodology adopted for automating sample labeling for supervised learning. The collected samples and the process of generating ground-truth (GT) labels were validated using the Texas instruments (TIs) phase difference of arrival (PDoA) implementation on the data, yielding a mean absolute error (MAE) at one of the heights without obstacles of 25.71°. The distance estimation on BLE was implemented using a Gaussian process regression algorithm, yielding an MAE of 0.174 m.