Global Institute for Research & Education (GIFRE)
Mobile data usage over cellular networks has been dramatically increasing over the past years. Smartphone is location based services using sensor set (GPS, Wi-Fi, the acceleration sensor, the orientation sensor, etc.), consume more energy and continuously using GPS, can cause the complete battery drain within a few hours, coverage areas of GPS are still limited that GPS typically cannot function indoors. EasyTrack, a location tracking service that leverages the sensor hints on the android smart phone to reduce the usage of GPS. Easy track executes a GPS sampling using the information from the acceleration and orientation sensors.