Query-Dependency-Aware Location Privacy Protection for Road Networks
Hui Chen, Xiaolin Qin · International Journal of Security and Its Applications · 2018
Effective location privacy protection policies could protect mobile users from suffering location privacy leakage threat when they enjoy location-based services (LBS).The anonymization effectiveness will suffer great deterioration if attacker obtains more background knowledge with respect to user's historical queries in conventional location privacy protection approaches mainly based on spatial cloaking.Most mobile users move over road networks and the dependency of their queries significantly affect the anonymous space privacy degree.This paper presents a query-dependency-based location privacy protection method for road networks.In the proposed method, the personalized privacy requirement of user is adequately considered.The feasibility and validity of the proposed method are verified through experiments for many scenarios.