Comparative Analysis of RSSI Interpolation Accuracy: Kriging vs. Linear Methods for Indoor Localization

The article presents kriging as the potential alternative interpolation method for radio received signal indicator distributions. Reference maps of Received Signal Strength Indication (RSSI) are used for indoor localization systems. The study compares two methods of interpolating RSSI radio maps - linear interpolation and kriging. It is verified that for a smaller number of samples selected for interpolation, the kriging method demonstrates higher interpolation accuracy compared to standard linear interpolation.