Low complexity 2-level (FFT-GOERTZEL) spectrum sensing method for cognitive radio
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Dhirubhai Ambani Institute of Information and Communication Technology
Abstract
Energy detection in frequency domain is a preferred technique for the spectrum sensing and the accuracy of frequency estimation depends on the Discrete Fourier Transform (DFT) size. Instead of computing full length (N) DFT of the whole data, a new two level (coarse-fine) technique for energy detection is proposed. In the first (coarse) level, time averaging of smaller size (L<
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Keywords
Opportunistic Spectrum Access, Cognitive Radio Networks, Radio spectrum, Spectrum Sensing, Usage detection, Radio frequency allocation
Citation
Bhatt, Prakruti Vinodchandra (2012). Low complexity 2-level (FFT-GOERTZEL) spectrum sensing method for cognitive radio. Dhirubhai Ambani Institute of Information and Communication Technology, 61 p. (Acc.No: T00354)