The advent of Bluetooth Low Energy (BLE) enabled
Beacons is poised to revolutionize the indoor contextual aware
services to the users. Due to the lower energy consumption and
higher throughput, BLE could therefore be an integral pillar
of an Internet of Things (IoT) Location Based Service (LBS).
Tracking a user with high accuracy is known as Micro-Location.
This is a requirement of many IoT user-centric applications
for indoor environments. Although several technologies have
been used for tracking purposes, the accuracy has always been
a serious issue. At the same time, each vendor would install
different technologies. In this work, we propose to use the cuttingedge
and commercially available Apple’s iBeacon protocol and
iBeacon BLE sensors for micro-location. We propose to leverage
a control theoretic approach, namely particle filtering, in order
to increase the tracking accuracy in an indoor environment. We
performed extensive experiments and our results show that the
proposed beacon based micro-location system can be used to
locate a user in an indoor environment with an error as low as
0.27 meters.