Cooperative sensing of improved energy detector based on minimum Bayes risk
Cooperative sensing of improved energy detector based on minimum Bayes risk
- Author(s): Yang Zheng ; Yuebin Chen ; Ting Peng ; Jianpei Chen ; Lin Gao
- DOI: 10.1049/cp.2015.0660
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- Author(s): Yang Zheng ; Yuebin Chen ; Ting Peng ; Jianpei Chen ; Lin Gao Source: 11th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2015), 2015 page ()
- Conference: 11th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2015)
- DOI: 10.1049/cp.2015.0660
- ISBN: 978-1-78561-034-9
- Location: Shanghai, China
- Conference date: 21-23 Sept. 2015
- Format: PDF
In cognitive radio networks, the improved energy detector is a very useful detector for the random signals corrupted by Gauss noise. In the single node sensing, we research the change of p values which has impacted on system performance under certain signal to noise ratio and obtain the optimal p values making the Bayes risk minimum. In the cooperative spectrum sensing, we use “K-out-of-N” rule and when the rule of K is a certain value, research the change of p values impact on the system performance, as well as the effect of system performance by changing K values. Theoretical analysis and simulation results show that the optimal K value, and p value are existed in cooperative spectrum sensing networks, contrast to the conventional energy detector improved energy detectors make system performance optimized.
Inspec keywords: random processes; signal detection; radio spectrum management; cooperative communication; cognitive radio; Bayes methods
Subjects: Radio links and equipment; Other topics in statistics; Signal detection
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