Large deviation solution for cooperative spectrum sensing with diversity analysis

Dongliang Duan; Liuqing Yang; Louis L. Scharf; Shuguang Cui

doi:10.1109/GLOCOM.2013.6831564

Large deviation solution for cooperative spectrum sensing with diversity analysis

Dongliang Duan, Liuqing Yang, Louis L. Scharf, Shuguang Cui

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

Spectrum sensing is an important building block to realize the cognitive radio concept. In order to combat fading in the wireless environment, cooperation among the sensing users is usually employed. In this paper, we develop a closed-form optimal local decision threshold for cooperative spectrum sensing in cognitive radio systems via large deviation analysis. The resultant strategy is independent of the total number of cooperating users. We show that it is not only asymptotically optimal when the number of sensing users approaches infinity, but also can achieve the maximum diversity. Numerical results are provided to verify our analysis.

Original language	English (US)
Title of host publication	2013 IEEE Global Communications Conference, GLOBECOM 2013
Pages	3200-3205
Number of pages	6
DOIs	https://doi.org/10.1109/GLOCOM.2013.6831564
State	Published - 2013
Externally published	Yes
Event	2013 IEEE Global Communications Conference, GLOBECOM 2013 - Atlanta, GA, United States Duration: Dec 9 2013 → Dec 13 2013

Publication series

Name	Proceedings - IEEE Global Communications Conference, GLOBECOM
ISSN (Print)	2334-0983
ISSN (Electronic)	2576-6813

Other

Other	2013 IEEE Global Communications Conference, GLOBECOM 2013
Country/Territory	United States
City	Atlanta, GA
Period	12/9/13 → 12/13/13

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10.1109/GLOCOM.2013.6831564

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Large deviation solution for cooperative spectrum sensing with diversity analysis. / Duan, Dongliang; Yang, Liuqing; Scharf, Louis L. et al.
2013 IEEE Global Communications Conference, GLOBECOM 2013. 2013. p. 3200-3205 6831564 (Proceedings - IEEE Global Communications Conference, GLOBECOM).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Duan, D, Yang, L, Scharf, LL & Cui, S 2013, Large deviation solution for cooperative spectrum sensing with diversity analysis. in 2013 IEEE Global Communications Conference, GLOBECOM 2013., 6831564, Proceedings - IEEE Global Communications Conference, GLOBECOM, pp. 3200-3205, 2013 IEEE Global Communications Conference, GLOBECOM 2013, Atlanta, GA, United States, 12/9/13. https://doi.org/10.1109/GLOCOM.2013.6831564

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AB - Spectrum sensing is an important building block to realize the cognitive radio concept. In order to combat fading in the wireless environment, cooperation among the sensing users is usually employed. In this paper, we develop a closed-form optimal local decision threshold for cooperative spectrum sensing in cognitive radio systems via large deviation analysis. The resultant strategy is independent of the total number of cooperating users. We show that it is not only asymptotically optimal when the number of sensing users approaches infinity, but also can achieve the maximum diversity. Numerical results are provided to verify our analysis.

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Large deviation solution for cooperative spectrum sensing with diversity analysis

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