An Algorithm Based on Double-Threshold Energy Detection in Cognitive Radio

Yuan Li; Jia Yin Chen; Xiao Feng Liu; Ming Chuan Yang

doi:10.4028/www.scientific.net/AMM.643.105

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 643An Algorithm Based on Double-Threshold Energy...

An Algorithm Based on Double-Threshold Energy Detection in Cognitive Radio

Abstract:

Aiming at the situation where the double-threshold detection has been widely used without complete mathematical proof and condition of application, this paper proves its correctness under the circumstance of spectrum sensing, and circulates the condition where this method can work. The proof and simulation show that, comparing with traditional energy detection, this method can increase the probability of detection by 27% to 42% at most when the SNR is between-15dB and-2dB, while the probability of false alarm is increased by less than 2%.

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Periodical:

Applied Mechanics and Materials (Volume 643)

Pages:

105-110

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.643.105

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Online since:

September 2014

Authors:

Yuan Li, Jia Yin Chen, Xiao Feng Liu, Ming Chuan Yang*

Keywords:

Cognitive Radio, Double-Threshold Detection, Energy Detection

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* - Corresponding Author

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