A dual privacy preserving approach for location-based services in mobile multicast environment

Privacy preserving is imperative for mobile location-based services of which the location data of the users and their objects of interest are subject to exploitation. A variety of privacy preserving mechanisms for location-based query has been proposed in recent years, but these current methods are generally either focused on the privacy of the users or the desired objects, which are not sufficient in mobile multicast environment. This paper introduces a novel dual privacy preserving approach, encompassing anonymous user’s location and object of interests as a means to minimize privacy risks for location-based services in multicast wireless environment. Experimental evaluation of the proposed method on a simulation platform demonstrated its effectiveness in preserving users’ privacy whilst ensuring minimum response time and power utilization of the users to receive the relevant objects.