A Novel Strategy Enhancing Location Cloaker for Privacy in Location Based Services

Prosperity of mobile devices makes location-based services more and more popular in recent years. However, with existing service infrastructure, users have to reveal their location information in order to access location based services. It is possible that adversaries can collect the location information, which in turn invades userpsilas privacy. In this paper, we proposed an novel architecture to enhance location cloaker, which provides stronger privacy protection by adopting a buffer and periodical (B&P) query processing strategy. This B&P strategy enables the location cloaker to blur the userpsilas locations in terms of both spatial and temporal attributes. Through intensive simulation, we verified the correctness and effectiveness of this new strategy.