Location-Based Indoor Mobile Advertising

Abstract

Smart phones and smart devices play a major role in people’s lifestyle all over the world. Localization is one of the useful features available on those smart devices. Outdoor localization and indoor localization are the two main categories of localization. The most common localization system on mobile phones is outdoor localization with GPS. However indoor positioning is generally not supported by GPS. This study mainly target on indoor localization or preciously track indoor location. A detailed discussion on most of the available techniques, methods and technologies for indoor localization is also included. A discussion on Bluetooth Low Energy (BLE) along with trilateration based indoor localization methodology, effective use of smoothing RSSI signals using filters such as feedback filter and RSSI mean filter are key features of this study. Prototype system showed an accuracy around ± 0.75 to ± 1 meter range. Bluetooth transmitting device quality, environment temperature, device temperature, impact of human body, reflections and interference from other communication signals are the main challenges faced with prototype. Accuracy of this system is significant for a successful implementation of for Location-Based Indoor Mobile Advertising. Since algorithms and techniques used for outdoor mobile advertising can be adopted for indoor as well, our main emphasis was to improve the accuracy of indoor localization. Keywords: Indoor Localization, Bluetooth, Bluetooth Low Energy (BLE), Received Signal Strength Indicator (RSSI), Trilateration