This paper proposes a localization improvement algorithm in GPS interfering spots by
integrating information of multiple sensors such as gyroscope and compass in the
smartphone. The proposed algorithm is implemented in a smartphone and the performance is
evaluated on a campus.
The proposed algorithm has better performance than only the GPS location information in
GPS interfering spots and maintains reasonable performance in open spaces where the GPS
receiver is accurate. As a future work, we consider localization improvement method for
smartphones using other built-in sensors such as accelerometer and camera.