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| Presentation | 2017-10-19 10:50 A Study on Adaptive Channel Estimation for Distributed MIMO Cooperative Transmissions Fumiyuki Adachi, Amnart Boonkajay (Tohoku Univ.)  RCS2017-173 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In distributed MIMO cooperative transmission using time division duplex (TDD), base station (BS) selects at most 4 distributed antennas by carrying out channel estimation using the uplink pilot transmitted from user equipment (UE) and then, transmits the downlink pilot from selected distributed antennas for channel estimation at UE. By doing so, both BS and UE sides can share the MIMO channel state information (CSI) before data transmission and reception. However, in a high mobility environment, CSI acquired by using uplink and downlink pilots will become outdated for data transmission and reception closer to the subframe end. In this paper, we propose a decision-feedback adaptive channel estimation scheme. The linear prediction (LP) is applied. The bit error rate (BER) performances of OFDM downlink using maximal ratio transmit diversity (MRTD) and single-carrier (SC) uplink using maximal ratio combining diversity (MRCD)/minimum mean square error combining diversity (MMSECD) is evaluated by computer simulation in a high mobility environment. It is confirmed that the proposed decision-feedback adaptive channel estimation can significantly improve the BER performance in a high mobility environment. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Distributed MIMO / cooperative transmission / TDD / channel estimation / decision feedback / linear prediction / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 246, RCS2017-173, pp. 31-36, Oct. 2017. | |
| Paper # | RCS2017-173 | |
| Date of Issue | 2017-10-12 (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 | RCS2017-173 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2017-10-19 - 2017-10-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2017-10-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Adaptive Channel Estimation for Distributed MIMO Cooperative Transmissions |
| Sub Title (in English) | |
| Keyword(1) | Distributed MIMO |
| Keyword(2) | cooperative transmission |
| Keyword(3) | TDD |
| Keyword(4) | channel estimation |
| Keyword(5) | decision feedback |
| Keyword(6) | linear prediction |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Fumiyuki Adachi |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Amnart Boonkajay |
| 2nd Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-10-19 10:50:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2017-173 |
| Volume (vol) | vol.117 |
| Number (no) | no.246 |
| Page | pp.31-36 |
| #Pages | 6 |
| Date of Issue | 2017-10-12 (RCS) |
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