A Generalized Location Privacy Protection Scheme in Location Based Services

When the user getting location based services by the traditional technology, his location information of region is always be exposed. However, in modern mobile networks, even the current geographical region is a part of privacy information. To solve this problem, a new generalized k-anonymity location privacy protection scheme in location based services (LPPS-GKA) with the third trust servicer is proposed. And it can guarantee the users get good location-based services (LBS) without leaking the information of the geo-location region, which has protected the perfect privacy. Analysis shows that LPPS-GKA is more secure in protecting location privacy, including region information, and is more efficient than other similar schemes in computational and communicational aspects. It is suitable for dynamic environment for different user’s various privacy protection requests.