earticle

영어

This paper proposes a novel TTP(Trusted Third Party)-free location privacy preserving method. A cloaking region is used to hide the precise position of the location based service requestor (a mobile user). The cloaking region is formed through collaboration among neighbors. A mobile user can not only set personalized anticipated privacy requirements but also set minimum privacy requirements according to different contexts. The anticipated requirements will be satisfied if the time is allowed. Otherwise, the system will pursue the minimum standards for privacy requirements. This approach can satisfy k-anonymity, l-diversity and cloaking granularity simultaneously for privacy preserving.