An investigation into the use of the kriging for Wi-Fi RSSI estimation in complex indoor environments

Kriging was originally developed for geographical interpolation purposes, but has proven to be a powerful tool in many other applications as well. In this study we evaluate kriging for Wi-Fi signal strength estimation in three different complex indoor environments. The empirical investigation of several scenarios is described and the results are analysed. Kriging is shown to be an efficient method for RSSI estimation in complex environments with acceptable results and can be used to construct realistic coverage maps with little effort.