عنوان انگلیسی مقاله:
Privacy-preserving aggregation for cooperative spectrum sensing
ترجمه فارسی عنوان مقاله:
تجمیع حفظ حریم خصوصی برای سنجش طیف تعاونی
Sciencedirect - Elsevier - Journal of Network and Computer Applications, 140 (2019) 54-64: doi:10:1016/j:jnca:2019:05:011
Yali Zeng a, Li Xua,∗, Xu Yangb, Xun Yi b, Ibrahim Khalil b
Cognitive radio technology has been proposed as a promising way to alleviate spectrum scarcity. In cognitive
radio networks, cooperative spectrum sensing is an effective approach to improve spectrum-estimation accuracy.
In this approach, a fusion center (FC) outsources sensing tasks to secondary users (SUs), and aggregates sensing
reports provided by SUs to estimate spectrum availability. However, as sensing reports are highly correlated to
SUs’ real locations, revealing sensing reports to an untrusted FC may incur a serious privacy threat for SUs. In this
paper, we propose an efficient scheme that allows the FC to learn desired statistics from a group of SUs without
compromising individual privacy. Moreover, the FC is still able to compute the sum over the remaining SUs
when some SUs fail to submit their reports. Besides, to ensure secure communication in cooperative spectrum
sensing, the proposed scheme verifies the legitimacy of SUs by utilizing the elliptic curve cryptography technique.
The results of security analysis show that the proposed scheme achieves the combined objectives of privacy
preservation, authentication, fault tolerance, and resistance to various types of attacks. Performance evaluation
results demonstrate the feasibility and practicality of the proposed scheme.
Keywords: Cognitive radio networks | Cooperative spectrum sensing | Privacy preservation | Authentication | Fault tolerance | Elliptic curve cryptography