  In recent years, there has been an increasing number of information
technologies utilized in buildings to advance the idea of "smart buildings".
Among various potential techniques, the use of Wi-Fi based indoor positioning
allows to locate and track smartphone users inside a building, therefore,
location-aware intelligent solutions can be applied to control and of building
operations. These location-aware indoor services (e.g., path finding, internet
of things, location based advertising) demand real-time accurate indoor
localization, which is a key issue to guarantee high quality of service in
smart buildings. This paper presents a new Wi-Fi based indoor localization
technique that achieves significantly improvement of indoor positioning
accuracy with the help of Li-Fi assisted coefficient calibration. The proposed
technique leverages indoor existing Li-Fi lighting and Wi-Fi infrastructure,
and results in a cost-effective and user-convenient indoor accurate
localization framework. In this work, experimental study and measurements are
conducted to verify the performance of the proposed idea. The results
substantiate the concept of refining Wi-Fi based indoor localization with Li-Fi
assisted computation calibration.
