Title
Participant Recruitment for Coverage-Aware Mobile Crowdsensing with Location Differential Privacy
Abstract
Mobile crowdsensing is recognized to be a promising paradigm wherein location-based sensing tasks are out-sourced to participants carrying mobile devices. A prominent issue of crowdsensing is to guarantee the sensing coverage by appropriately recruiting participating devices, which requires the disclosure of participants locations and leads to potential location privacy threats. In this paper, we aim to develop a privacy-preserving participant recruiting scheme for mobile crowdsensing, which guarantees the crowdsensing coverage while preserving participants' location differential privacy against a semi-honest crowdsensing aggregator. Briefly, based on the differential private geo-indistinguishability method, we enable candidate participants to locally perturb their location data. With the obfuscated location information, we formulate the crowdsensing coverage optimization as an Integer Program (IP), and develop a 1 - (1 - 1/f)(f)-approximation algorithm, which yields a near-optimal participant recruiting solution. Through extensive simulations, we demonstrate the tradeoff between privacy preservation and crowdsensing utility, and show that satisfactory crowdsensing coverage can be achieved while preserving the participants' differential location privacy.
Year
DOI
Venue
2019
10.1109/GLOBECOM38437.2019.9013831
IEEE Global Communications Conference
DocType
ISSN
Citations 
Conference
2334-0983
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Li Liang11417.68
Xinyue Zhang22420.06
Ronghui Hou37313.79
Hao Yue444656.19
Hui Li581492.33
Miao Pan669868.15