| Presentation | 2008-03-06 Detection Method for Recognizing Number of Parallel Transmitted Symbols in MIMO-Cognitive Wireless Communication Osamu TAKYU, Takeo FUJII, Yohtaro UMEDA, Masao NAKAGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In cognitive radio system, each mobile station observes the usage of frequency spectrum, detects the vacant frequency spectrum, and then uses it for sending the information data signal. In addition, multiple-input multiple-output (MIMO) system, which can transmit multiple data signals with using single frequency spectrum, is applied to cognitive radio, and thus frequency use efficiency is significantly improved. In MIMO-Cognitive Radio system, when new user joints the system for transmitting data signal, it is necessary that the new user should detect the number of parallel transmitted symbols which the other users transmit, because the new user should remove the interference signals whose number is the same as that of parallel data symbols. In this paper, in MIMO-Cognitive Radio system, the novel method for recognizing the number of parallel data symbols is proposed. In proposed recognition technique, the received signal point is more significantly fluctuated as the number of parallel transmitted symbols becomes larger. As a result, the fluctuation can be used for recognizing the number of parallel transmitted symbols. The effect of the proposed technique is shown by computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cognitive Radio / MIMO / Number of Parallel Transmitted Symbols |
| Paper # | SR2007-91 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2008/2/28(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) | Detection Method for Recognizing Number of Parallel Transmitted Symbols in MIMO-Cognitive Wireless Communication |
| Sub Title (in English) | |
| Keyword(1) | Cognitive Radio |
| Keyword(2) | MIMO |
| Keyword(3) | Number of Parallel Transmitted Symbols |
| 1st Author's Name | Osamu TAKYU |
| 1st Author's Affiliation | Department of Electrical Engineering, Faculty of Science and Technology, Tokyo University of Science() |
| 2nd Author's Name | Takeo FUJII |
| 2nd Author's Affiliation | Advanced Wireless Communication Research Center (AWCC), The University of Electro-Communications |
| 3rd Author's Name | Yohtaro UMEDA |
| 3rd Author's Affiliation | Department of Electrical Engineering, Faculty of Science and Technology, Tokyo University of Science |
| 4th Author's Name | Masao NAKAGAWA |
| 4th Author's Affiliation | Department of Information and Computer Science, Faculty of Science and Technology, Keio University |
| Date | 2008-03-06 |
| Paper # | SR2007-91 |
| Volume (vol) | vol.107 |
| Number (no) | 519 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |