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| Presentation | 2008-01-24 13:40 Cooperative Control of Antenna Array Calibration in OFDMA/TDD Systems Yoshitaka Hara, Yasuhiro Yano, Hiroshi Kubo (Mitsubishi Electric Corp.)  SIP2007-141 RCS2007-144 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes antenna array calibration to exploit channel reciprocity through a cooperative supporter in OFDMA/TDD systems. For a terminal's calibration, the proposed scheme seeks a cooperative supporter which is another terminal or a fixed station capable of keeping high signal-to-noise power ratio (SNR) to the terminal. Then, calibration, which compensates mismatch of analog gains between antennas, is performed using measured channel parameters of both directions between the terminal and the supporter. Furthermore, normal calibration through a base station or cooperative calibration is adaptively selected according to positions of the terminal and possible supporters. The numerical results show that the proposed scheme improves calibration accuracy significantly compared to the conventional scheme. The proposed scheme keeps phase error less than 5 degrees in any positions of terminal in a cell, maintaining practical amount of control signalling and complexity. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Wireless communications / OFDMA / TDD / Calibration / Antenna arrays / Channel reciprocity / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 440, RCS2007-144, pp. 61-65, Jan. 2008. | |
| Paper # | RCS2007-144 | |
| Date of Issue | 2008-01-17 (SIP, RCS) | |
| 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 | SIP2007-141 RCS2007-144 |
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| Conference Information | |
| Committee | RCS SIP |
| Conference Date | 2008-01-24 - 2008-01-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima City Uni. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2008-01-RCS-SIP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Cooperative Control of Antenna Array Calibration in OFDMA/TDD Systems |
| Sub Title (in English) | |
| Keyword(1) | Wireless communications |
| Keyword(2) | OFDMA |
| Keyword(3) | TDD |
| Keyword(4) | Calibration |
| Keyword(5) | Antenna arrays |
| Keyword(6) | Channel reciprocity |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yoshitaka Hara |
| 1st Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric Corp.) |
| 2nd Author's Name | Yasuhiro Yano |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric Corp.) |
| 3rd Author's Name | Hiroshi Kubo |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric Corp.) |
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| Speaker | Author-1 |
| Date Time | 2008-01-24 13:40:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | SIP2007-141, RCS2007-144 |
| Volume (vol) | vol.107 |
| Number (no) | no.438(SIP), no.440(RCS) |
| Page | pp.61-65 |
| #Pages | 5 |
| Date of Issue | 2008-01-17 (SIP, RCS) |
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