Distance Estimation and Positioning Based on Bluetooth Low Energy Technology

This thesis deals with location determining, also known as positioning, using Bluetooth Low energy radio. The goal is to implement a low power low cost indoor positioning system which utilize existing hardware. Two main methods are investigated and their viability assessed. Previous efforts with indoor positioning systems concentrate on statistical fingerprinting methods, mainly using 802.11 (WLAN) as the platform. Some efforts have been made with purely signal strength based positioning, but indoor environments have shown to work unfavorably for these kinds of methods