| Presentation | 2011-03-02 A Study on Improvement of Low-Complexity Cyclostaionary Feature Detection Method for Compensating Cyclostationarity-degradation Hiroyoshi YANO, Osamu TAKYU, Takeo FUJII, Tomoaki OHTSUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In autonomous decentralized cognitive radio system, we have studied a high accuracy and low complexity cyclostationarity feature detection method for compensating cyclostationarity-degradation. In previous method, we added stop period equal to GI length and avoided the increase of timing mismatch between detected symbol and detection window. Moreover, in order to avoid cyclostationarity-degradation by synchronization of timing shift, we proposed multi-tap delay line filter whose unit delay is equal to GI length. However, this filter does not use energy of stop period. Therefore, compensating the unused energy of stop period, we improve the detection probability of the weak signals. Also, in multipath environment, the previous proposed method cannot detect first path, and thus ISI occurs and cyclostationarity degrades. Therefore, we made two-step multi-tap delay line filter, which has conventional multi-tap delay line and also has one with the high temporal resolution. Computer simulation show the effectiveness of the proposed detection method compared to the conventional one. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cognitive Radio / Two-step Sensing / Cyclostationarity / Guard Interval / Synthesis |
| Paper # | SR2010-97 |
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| Committee | SR |
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| Conference Date | 2011/2/23(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (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 Improvement of Low-Complexity Cyclostaionary Feature Detection Method for Compensating Cyclostationarity-degradation |
| Sub Title (in English) | |
| Keyword(1) | Cognitive Radio |
| Keyword(2) | Two-step Sensing |
| Keyword(3) | Cyclostationarity |
| Keyword(4) | Guard Interval |
| Keyword(5) | Synthesis |
| 1st Author's Name | Hiroyoshi YANO |
| 1st Author's Affiliation | School of Science for OPEN and Environmental Systems, Graduate School of Science and Technology, Keio University() |
| 2nd Author's Name | Osamu TAKYU |
| 2nd Author's Affiliation | Department of Electrical Engineering, Faculty of Science and Technology, Tokyo University of Science |
| 3rd Author's Name | Takeo FUJII |
| 3rd Author's Affiliation | Advanced Wireless Communication Research Center, University of Electro-Communications |
| 4th Author's Name | Tomoaki OHTSUKI |
| 4th Author's Affiliation | School of Science for OPEN and Environmental Systems, Graduate School of Science and Technology, Keio University |
| Date | 2011-03-02 |
| Paper # | SR2010-97 |
| Volume (vol) | vol.110 |
| Number (no) | 435 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |