Date Added: Aug 2012
Smart phones and Location Based Services (LBSs) are getting very popular in recent years. To this end, locating the positions of smart phones becomes inevitable. To date, there exist some localization systems in some specific areas. For instance, GPS can be used only in the outdoor space. However, people always live in large scale environments like campus, urban and tourist areas, including both indoor and outdoor space. For large scale environment, a single location technique is not always available everywhere. Therefore, the authors propose a heterogeneous localization algorithm which combines GPS, Wi-Fi and Internet Of Things (IOT) localizations.