Yunlong Mao
ABSTRACT
Collaborative sensing has become increasingly popular in cognitive radio networks to enable unlicensed secondary users to coexist with the licensed primary users and share spectrum without interference. Despite its promise in performance enhancement, collaborative sensing is still facing a lot of security challenges. The problem of revealing secondary users' location information through sensing reports has been reported recently. Unlike any existing work, in this paper we not only address the location privacy issues in the collaborative sensing process against semi-honest adversaries, but also take the malicious adversaries into consideration. We propose efficient schemes to protect secondary users' report from being revealed in the report aggregation process at the fusion center. We rigorously prove that our privacy-preserving collaborative sensing schemes are secure against the fusion center and the secondary users in semi-honest model. We also evaluate our scheme extensively and verify its efficiency.
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Index Terms
- Protecting Location Information in Collaborative Sensing of Cognitive Radio Networks
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