Presentation 2012-05-25
Overlapped FFT Scheme with Frames of Non-continuous Samples
Shoya UCHIDA, Akihiro SATO, Mamiko INAMORI, Yukitoshi SANADA,
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Abstract(in English) Overlapped FFT has been proposed as a signal detection scheme in dynamic spectrum access to reduce the variance of the noise and improve the detection probability. However, the improvement of the detection probability in the conventional overlapped FFT is bounded with the upper limit of the overlap ratio. This report proposes a new overlapped FFT scheme using additional frames. In the proposed scheme, in addition to the conventional DFT frames, new frames that consists of multiple subframes with non-continuous samples are constructed and included. It can realize the increase of the number of DFT outputs and the improvement of the detection probability compared with the conventional scheme. Numerical results through computer simulation show that the proposed scheme improves the detection probability by up to 0.09.
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Keyword(in English) Cognitive radio / Overlapped FFT / Spectrum Sensing
Paper # SR2012-13
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Conference Date 2012/5/17(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Overlapped FFT Scheme with Frames of Non-continuous Samples
Sub Title (in English)
Keyword(1) Cognitive radio
Keyword(2) Overlapped FFT
Keyword(3) Spectrum Sensing
1st Author's Name Shoya UCHIDA
1st Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University()
2nd Author's Name Akihiro SATO
2nd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
3rd Author's Name Mamiko INAMORI
3rd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
4th Author's Name Yukitoshi SANADA
4th Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University
Date 2012-05-25
Paper # SR2012-13
Volume (vol) vol.112
Number (no) 55
Page pp.pp.-
#Pages 7
Date of Issue