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Hearing is believing: Detecting mobile primary user emulation attack in white space

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3 Author(s)
Shaxun Chen ; Dept. of Comput. Sci., Univ. of California, Davis, CA, USA ; Kai Zeng ; Mohapatra, P.

In cognitive radio networks, an adversary transmits signals whose characteristics emulate those of primary users, in order to prevent secondary users from transmitting. Such an attack is called primary user emulation (PUE) attack. There are two main types of primary users in white space: TV towers and wireless microphones. Existing work on PUE attack detection focused on the first category. However, for the latter category, primary users are mobile and their transmission power is low. These unique properties of wireless microphones introduce great challenges and existing methods are not applicable. In this paper, we propose a novel method to detect the PUE attack of mobile primary users. We exploit the correlations between RF signals and acoustic information to verify the existence of wireless microphones. The effectiveness of our approach is validated through extensive real-world experiments. It shows that our method achieves both false positive rate and false negative rate lower than 0.1.

Published in:

INFOCOM, 2011 Proceedings IEEE

Date of Conference:

10-15 April 2011