Greedy Random Walk Scheme Based MSL Privacy for WSN

Abstract

The privacy for station-locations of WSN is a key problem in battlefield. Being exposed for location, the consequences are unthinkable. RDCS (Random Data Collection Scheme) has a problem that message latencies become higher. In this paper, GRWS (Greedy Random Walk Scheme) is proposed to preserve MSL (Mobile-Station-Location) privacy. In GRWS, data are forwarded and stored at pass nodes, the station move to get data sporadically, which prevents the attackers from predicting their locations and movements. Compared to RDCS, GRWS has smaller message latencies, while providing satisfactory MSL privacy.