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| Presentation | 2018-02-28 10:00 Study on Adaptive STBC-TD for Distributed MIMO Cooperative Transmission Tomoyuki Saito, Amnart Boonkajay, Fumiyuki Adachi (Tohoku Univ.)  RCS2017-320 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Space-time block coded transmit diversity (STBC-TD) uses the minimum mean square error combining diversity (MMSECD) for single-carrier (SC) uplink and the maximal ratio transmit diversity (MRTD) for OFDM downlink. The MMSECD weight and the MRTD weight are generated before transmission. This is done by using pilot based channel estimation using the uplink and downlink pilots which are transmitted before data. However, in a high mobility environment, the bit-err rate (BER) performance degrades because the channel changes after pilot transmission. In order to mitigate the performance degradation, in this paper, we propose an adaptive STBC-TD with decision feedback channel estimation. Using decision feedback channel estimation, the adaptive STBC-TD updates the MMSECD weight for SC uplink transmission while it introduces the receive filter for OFDM downlink transmission so as to keep the equivalent channel close to the equivalent channel computed upon receiving the downlink pilot. We evaluate, by computer simulation, the uncoded BER performance with adaptive STBC-TD. It is shown that the proposed adaptive STBC-TD increases the allowable maximum Doppler frequency fDT for keeping BER<10-2 about 4.3 times and 2.2 times for SC uplink transmission and OFDM downlink transmission, respectively. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | STBC / Channel estimation / Decision feedback / SC / OFDM / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 456, RCS2017-320, pp. 19-24, Feb. 2018. | |
| Paper # | RCS2017-320 | |
| Date of Issue | 2018-02-21 (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 | RCS2017-320 |
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| Conference Information | |
| Committee | RCS SR SRW |
| Conference Date | 2018-02-28 - 2018-03-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2018-02-RCS-SR-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Adaptive STBC-TD for Distributed MIMO Cooperative Transmission |
| Sub Title (in English) | |
| Keyword(1) | STBC |
| Keyword(2) | Channel estimation |
| Keyword(3) | Decision feedback |
| Keyword(4) | SC |
| Keyword(5) | OFDM |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Tomoyuki Saito |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Amnart Boonkajay |
| 2nd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 3rd Author's Name | Fumiyuki Adachi |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2018-02-28 10:00:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2017-320 |
| Volume (vol) | vol.117 |
| Number (no) | no.456 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2018-02-21 (RCS) |
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