Research On Location Privacy Preserving Model And Algorithm Based On Area Exchange In Mobile Applications

With the rapid development of mobile computing technology and the intellisensetechnology, the location-based services (LBS) have become one of the hottest attentions ofmobile Internet applications. LBS have brought greatly facilitated to people’s lives, but in theprocess of collection, storage and sharing user location information it will suffer serious leakageproblems. Attackers who use data mining techniques can also infer the user’s other informationbased on the location information, such as the identity of the identifier, habits, health status, andpolitical tendencies, and even cause injury through track the location information. So, it is needto adopt methods and techniques to avoid disclosure of personal privacy and personal securitythreats due to the location information disclosure.In this paper, we conducted in-depth studies of the current location privacy protectionmethod. This paper proposes a multi-user area exchange based mobile user locationprivacy method, namely AELP. While guaranteeing the users’ personal location privacyrequirements; we obtain a higher quality of service and improve the overall performanceof the position anonymous system.First, we gave the attack model of location privacy and trust mode, expounded thesystem structure based on the area exchange of location privacy, and highlight proposedthe service mode of area exchange and the location privacy model of area exchange.Secondly, requirement first、query first and weight first of heuristic algorithms arepresented to obtain the minimum-users-exchange-set to minimize the waiting-time ofanonymous users, and we address services-user return exchange algorithm, the serviceresult is returned to the user service accurately and timely.Finally, realized the location privacy of area exchange based on the Java language,verified the high performance and effectiveness of the location privacy protection method.