Date Added: Aug 2012
This paper present the authors' mobile u-navigation system. This approach utilizes hybridization of wireless local area network and Global Positioning System internal sensor which to receive signal strength from access point and the same time retrieve Global Navigation System Satellite signal. This positioning information will be switched based on type of environment in order to ensure the ubiquity of positioning system. Finally they present their results to illustrate the performance of the localization system for an indoor/outdoor environment set-up.