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Location privacy protection in smart health care system

journal contribution
posted on 2019-04-01, 00:00 authored by Iynkaran NatgunanathanIynkaran Natgunanathan, Abid Mehmood, Yong XiangYong Xiang, Longxiang GaoLongxiang Gao, Shui Yu
In a smart health system, patients’ location information is periodically sent to hospitals and this information helps hospitals to provide improved health care services. The location information together with time stamp alone can reveal a patient’s private information such as person’s life style, places frequently visited by the person and personal interests. Thus, it is important to protect the location privacy of a patient. In the existing privacy protection mechanisms, trusted third party (TTP) and location perturbation techniques are used. However, in TTP based mechanism, an adversary who illegally gets access to TTP server will have access to the private location information. On the other hand in location perturbation technique, utility of the location information is significantly compromised. In this paper, we propose a location privacy protection mechanism in which location privacy is protected while maintaining the utility of the location data. In the proposed mechanism, a main processing unit (MPU) attached to a patient’s body generates the perturbed location by considering the distance between the patient’s location and the pre-identified patient’s sensitive locations. This adaptive generation of perturbed location, removes the necessity to trust other parties while preserving the privacy and utility of the location data. The validity of the proposed mechanism is demonstrated by simulation results.

History

Journal

IEEE internet of things journal

Volume

6

Issue

2

Pagination

3055 - 3069

Publisher

IEEE

Location

Piscataway, N.J.

eISSN

2327-4662

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2018 IEEE