| Presentation | 2014-10-31 Development of a measurement system for spectrum awareness : DC estimation based on Welch-FFT(Poster session) Hiroki IWATA, Kenta UMEBAYASHI, Riki MIZUCHI, Tatsuya MARUYAMA, Kazuki MORIWAKI, Samuli TIIRO, Janne J LEHTOMAKI, Yasuo SUZUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To resolve the spectrum scarcity problem, dynamic spectrum access (DSA) has been investigated recently. In DSA, an unlicensed user (secondary user: SU) can opportunistically access the unused spectrum (White Space: WS) owned by the licensed user (primary user: PU) while mitigating harmful interference from SU to PU. Key technique in DSA is spectrum sensing which is used to detect WS. However, implementing spectrum sensing in practice with reasonably low cost is very challenging due to the required detection accuracy and quickness. 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. In the DC estimation method, there is a trade-off relationship between DC estimation accuracy and WS detection accuracy with regard to the segment size of Welch-FFT. In this paper, we define the evaluation criteria for DC estimation accuracy and WS detection accuracy and provide the segment size design guideline in terms of DSA. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Dynamic spectrum access / Spectrum measurement / Duty Cycle / Welch FFT |
| Paper # | SR2014-89 |
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| Committee | SR |
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| Conference Date | 2014/10/23(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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of a measurement system for spectrum awareness : DC estimation based on Welch-FFT(Poster session) |
| 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 | Department of Electrical Engineering, Tokyo University of Agriculture and Technology() |
| 2nd Author's Name | Kenta UMEBAYASHI |
| 2nd Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| 3rd Author's Name | Riki MIZUCHI |
| 3rd Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| 4th Author's Name | Tatsuya MARUYAMA |
| 4th Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| 5th Author's Name | Kazuki MORIWAKI |
| 5th Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| 6th Author's Name | Samuli TIIRO |
| 6th Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| 7th Author's Name | Janne J LEHTOMAKI |
| 7th Author's Affiliation | University of Oulu |
| 8th Author's Name | Yasuo SUZUKI |
| 8th Author's Affiliation | Department of Electrical Engineering, Tokyo University of Agriculture and Technology |
| Date | 2014-10-31 |
| Paper # | SR2014-89 |
| Volume (vol) | vol.114 |
| Number (no) | 284 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |