iBeacon is a protocol standardized by Apple based on Bluetooth Low Energy which allows broadcasting devices (e.g. beacons) to emit signals and a compatible receiver (e.g. smartphone) to capture and interpret the same. iBeacon seems useful in indoor positioning and proximity based solutions.   This paper talks about our experiences with iBeacon and establishing its effectiveness in indoor positioning. We placed multiple beacons in a room and recorded received signal strength (RSSI) at designated points (fingerprinting) to create a RSSI fingerprint database. This was used to establish location of a user in real time based on the measured RSSI in the user's mobile device.   We found beacon signal strength is inconsistent and is dependent on height, position, direction of device and obstacles. RSSI fingerprinting is time consuming and must be redone if beacons are moved or if room is rearranged. Our conclusion was that iBeacon was more suitable for applications around proximity rather than positioning.
['P. C. Deepesh', 'Rashmita Rath', 'Akshay Tiwary', 'Vikram Nagaraja Rao', 'N. Kanakalata']
Experiences with using iBeacons for Indoor Positioning