| Presentation | 2015-01-30 Welch FFT segment size selection method for Duty Cycle estimation Hiroki IWATA, Kenta UMEBAYASHI, Samuli TIIRO, Janne J LEHTOMAKI, Yasuo SUZUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In dynamic spectrum access (DSA) and the scenario with dynamic primary user (PU), spectrum sensing with reasonably low cost is very challenging due to the required detection accuracy and quickness which is used to detect the unused spectrum (White Space : WS) owned by PU. One possible approach to achieve the requirements is to use statistics regarding PU spectrum utilization in spectrum sensing. For this issue, it is necessary to develop a system for obtaining the statistical information, such as Duty Cycle (DC). In our previous work, DC estimation based on Welch FFT has been investigated. The DC estimation method requires the optimum segment size selection method for both estimation accuracy because there is a trade-off relationship between DC estimation accuracy and WS estimation accuracy with regard to the segment size of Welch FFT. In this paper, we show the optimum segment size depends on the signal-to-noise power ratio in frequency domain (SNR_ |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Dynamic spectrum access / Spectrum measurement / Duty Cycle / Welch FFT |
| Paper # | SR2014-110 |
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| Committee | SR |
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| Conference Date | 2015/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Smart Radio(SR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Welch FFT segment size selection method for Duty Cycle estimation |
| Sub Title (in English) | |
| Keyword(1) | Dynamic spectrum access |
| Keyword(2) | Spectrum measurement |
| Keyword(3) | Duty Cycle |
| Keyword(4) | Welch FFT |
| 1st Author's Name | Hiroki IWATA |
| 1st Author's Affiliation | () |
| 2nd Author's Name | Kenta UMEBAYASHI |
| 2nd Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| 3rd Author's Name | Samuli TIIRO |
| 3rd Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| 4th Author's Name | Janne J LEHTOMAKI |
| 4th Author's Affiliation | University of Oulu |
| 5th Author's Name | Yasuo SUZUKI |
| 5th Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| Date | 2015-01-30 |
| Paper # | SR2014-110 |
| Volume (vol) | vol.114 |
| Number (no) | 435 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |