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| Presentation | 2008-03-06 13:40 Detection Method for Recognizing Number of Parallel Transmitted Symbols in MIMO-Cognitive Wireless Communication Osamu Takyu (Tokyo Univ. of Science), Takeo Fujii (Univ. of Electro-Commun.), Yohtaro Umeda (Tokyo Univ. of Science), Masao Nakagawa (Keio Univ.)  SR2007-91 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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) |
| (in English) | Cognitive Radio / MIMO / Number of Parallel Transmitted Symbols / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 519, SR2007-91, pp. 39-44, March 2008. | |
| Paper # | SR2007-91 | |
| Date of Issue | 2008-02-28 (SR) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SR2007-91 |
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| Conference Information | |
| Committee | RCS AN MoNA SR WBS |
| Conference Date | 2008-03-05 - 2008-03-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2008-03-RCS-AN-MoMuC-SR-WBS |
| Language | Japanese |
| 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 |
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| 1st Author's Name | Osamu Takyu |
| 1st Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 2nd Author's Name | Takeo Fujii |
| 2nd Author's Affiliation | The University of Electro-Communications (Univ. of Electro-Commun.) |
| 3rd Author's Name | Yohtaro Umeda |
| 3rd Author's Affiliation | Tokyo University of Science (Tokyo Univ. of Science) |
| 4th Author's Name | Masao Nakagawa |
| 4th Author's Affiliation | Keio University (Keio Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-03-06 13:40:00 |
| Presentation Time | 20 minutes |
| Registration for | SR |
| Paper # | SR2007-91 |
| Volume (vol) | vol.107 |
| Number (no) | no.519 |
| Page | pp.39-44 |
| #Pages | 6 |
| Date of Issue | 2008-02-28 (SR) |
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