| Presentation | 2012-07-27 A study on frequency offset countermeasure for cyclostationarity-based a number of signals detection Takashi MIURA, Kenta UMEBAYASHI, Yasuo SUZUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we have investigated 4-level hypothesis based spectrum sensing technique for spectrum spectrum sharing between primary users (PUs) and secondary users (SUs). In the most of related works, they focused on 2-level hypothesis, H_0: frequency is vacant and H_1: frequency is used by PU. In the 4-level hypothesis, we add two hypothesis, H_2: frequency is used by SU and H_3: frequency is used by PU and SU. Benefit of the 4-level hypothesis approach is that it is possible to achieve more effective spectrum utilization by recognizing details of status of frequency. In a previous work of spectrum sensing for the 4-level hypothesis, cyclostationarity of SU is designed to enable accurate recognition. Specifically, a small frequency shift is added to the SU signal. However, in this approach, frequency offset caused by doppler shift and uncertainty of local oscillator is a significant issue for accurate spectrum sensing in the 4-level hypothesis. For this issue, we proposed a test statistic which can achieve robustness against the frequency offset and introduced a design method of the proposed spectrum sensing. The numerical results have shown the validity of the design and a robustness of the proposed spectrum sensing. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spectrum sharing / sensing / cyclostationarity / multiple hypothesis test / frequency offset |
| Paper # | SR2012-29 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2012/7/19(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Registration To | Software Radio(SR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on frequency offset countermeasure for cyclostationarity-based a number of signals detection |
| Sub Title (in English) | |
| Keyword(1) | spectrum sharing |
| Keyword(2) | sensing |
| Keyword(3) | cyclostationarity |
| Keyword(4) | multiple hypothesis test |
| Keyword(5) | frequency offset |
| 1st Author's Name | Takashi MIURA |
| 1st Author's Affiliation | Department of Electrical Engineering, Graduate School of Engineering, Tokyo University of Agriculture and Technology() |
| 2nd Author's Name | Kenta UMEBAYASHI |
| 2nd Author's Affiliation | Department of Electrical Engineering, Graduate School of Engineering, Tokyo University of Agriculture and Technology |
| 3rd Author's Name | Yasuo SUZUKI |
| 3rd Author's Affiliation | Department of Electrical Engineering, Graduate School of Engineering, Tokyo University of Agriculture and Technology |
| Date | 2012-07-27 |
| Paper # | SR2012-29 |
| Volume (vol) | vol.112 |
| Number (no) | 153 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |