| Presentation | 2016-01-21 A study on threshold setting for spectrum sensing based on spectrum utilization rate Kazuhiro Hayashi, Kenta Umebayashi, Janne Lehtomaki, Yasuo Suzuki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we investigate threshold setting for spectrum sensing based on statistics of spectrum usage for spectrum sharing between PU (Primary User) and SU (Secondary User). It has been shown that spectrum sensing performance can be improved by using the statistics, i.e. distribution of received signal power, state transition probability. However, relationship between threshold and detection probability and false alarm probability has not been investigated deeply. In this paper, we show that estimation of received signal power statistics affect the detection performance (detection probability and false alarm probability). We assume that distribution of received signal power follows Gaussian distribution. We utilize margin for a countermeasure of estimation error in received signal power statistics to set threshold properly. The threshold and the margin are set in empirical manner. We evaluate robustness of the threshold in two scenarios: priori information of spectrum state is expressed by either probability of the state of decision of state. In fact, the former one has much robustness compared to the later one. We also confirmed that increasing number of samples in the spectrum sensing can enhance the performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Dynamic spectrum access / Smart spectrum access / Spectrum sensing / Cognitive radio / Statistical information / Gaussian approximation |
| Paper # | SR2015-73 |
| Date of Issue | 2016-01-14 (SR) |
| Conference Information | |
| Committee | SR |
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| Conference Date | 2016/1/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukue-bunka-kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Cognitive wireless network, Cross layer wireless technology, SDN, etc. |
| Chair | Takeo Fujii(Univ. of Electro-Comm.) |
| Vice Chair | Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) |
| Secretary | Kenta Umebayashi(Shinshu Univ.) / Masayuki Ariyoshi(NICT) |
| Assistant | Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Radio |
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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 threshold setting for spectrum sensing based on spectrum utilization rate |
| Sub Title (in English) | |
| Keyword(1) | Dynamic spectrum access |
| Keyword(2) | Smart spectrum access |
| Keyword(3) | Spectrum sensing |
| Keyword(4) | Cognitive radio |
| Keyword(5) | Statistical information |
| Keyword(6) | Gaussian approximation |
| 1st Author's Name | Kazuhiro Hayashi |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology(TUAT) |
| 2nd Author's Name | Kenta Umebayashi |
| 2nd Author's Affiliation | Tokyo University of Agriculture and Technology(TUAT) |
| 3rd Author's Name | Janne Lehtomaki |
| 3rd Author's Affiliation | University of Oulu(Univ. of Oulu) |
| 4th Author's Name | Yasuo Suzuki |
| 4th Author's Affiliation | Tokyo University of Agriculture and Technology(TUAT) |
| Date | 2016-01-21 |
| Paper # | SR2015-73 |
| Volume (vol) | vol.115 |
| Number (no) | SR-411 |
| Page | pp.pp.9-15(SR), |
| #Pages | 7 |
| Date of Issue | 2016-01-14 (SR) |