Mobility

Location Privacy Preservation in Collaborative Spectrum Sensing

Download Now Free registration required

Executive Summary

Collaborative spectrum sensing has been regarded as a promising approach to enable secondary users to detect primary users by exploiting spatial diversity. In this paper, the authors consider a converse question: could space diversity be exploited by a malicious entity, e.g., an external attacker or an untrusted Fusion Center (FC), to achieve involuntary geo-location of a secondary user by linking his location-dependent sensing report to his physical position. They answer this question by identifying a new security threat in collaborative sensing from test-bed implementation, and it is shown that the attackers could geo-locate a secondary user from its sensing report with a successful rate of above 90% even in the presence of data aggregation.

  • Format: PDF
  • Size: 430.31 KB