Improve the Robustness of Indoor Localization Using DRSS

Abstract

In this paper, we present a fingerprint positioning technique based on differential received signal strength (DRSS).By using DRSS fingerprints, the problem of degraded accuracy caused by heterogeneous devices in indoor WLAN localization. The robustness of DRSS fingerprints is proved, both theoretically and practically, to be better than that of RSS, thus the applicability as well as accuracy is improved in a WLAN indoor localization system with various devices.