Indoor Positioning Bluetooth Angle of Arrival

Abstract: In this thesis, we present the Angle of Arrival (AoA) technique to detect the direction of a source indoors using radio frequency (RF) signal. This technique estimates the direction of the incoming Bluetooth signal, using a tag as a transmitter and an array equipped with a number of antennas as a receiver. We explore the theoretical basis of array processing and algorithms for direction finding. A simulation of the suggested direction finding algorithms was performed. The main task of this thesis is to test and analyse a commercial widely-used Bluetooth-based indoor positioning system using angle of arrival technique. We explain the system architecture and characteristics. To evaluate the performance of the system, several experiments and testing have been implemented. Afterwards, we discuss the results gathered from these measurements and the reasons behind them. The obtained results showed that there is a gap between the theoretical expectations and the empirical measurements in different environments. The main factors affecting the performance have been identified and analysed. We suggest that there can be room for enhancement.