Theoretical entropy assessment of fingerprint-based Wi-Fi localization accuracy
The entropy is employed as a new metric to evaluate the fingerprint-based Wi-Fi location accuracy. The relations of entropy and accuracy with variable RP densities and standard deviations are given. The reckless increase of the number of APs cannot be an effective way to improve location accuracy. The substantial saving of computation cost by the entropy is achieved over the existing metrics.
entropy wi-fi localization rss fingerprint precision expected errors