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| Presentation | 2016-05-17 14:00 [Poster Presentation] A Study on Propagation Model and Mechanism on Null-Space Dimension Expansion for Multi-User MIMO Tolerant to Channel Fluctuation Daichi Tokuyasu, Makoto Taromaru, Ryosuke Ono, Mai Ohta (Fukuoka Univ.)  SR2016-21 SRW2016-18 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Some papers reported that a zero-forcing (ZF) adaptive array antenna or multi-user MIMO system can be robust against channel variation due to fading and/or movement of the interfering terminals when the combining weights are set to cancel not only the most recent channels but also the previous ones of the interferences. This report discusses the mechanism to cancel the interferences focusing on the relation between the interference subspace spanned by the channel vectors of the interferences and the combining weight vector. In this report, it is shown that the ZF weight vector both for the most recent and the next previous channels can be still ZF for the current channels as well as these can be approximated by linear extrapolation of the former channels. It is also discussed how the subspace dimension should be extended to get the optimum weights in case the channels are deviating from the linearly extrapolated ones. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | adaptive array antenna / degree of freedom / MIMO / diversity / zero-forcing / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 29, SR2016-21, pp. 73-74, May 2016. | |
| Paper # | SR2016-21 | |
| Date of Issue | 2016-05-09 (SR, SRW) | |
| 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 | SR2016-21 SRW2016-18 |
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| Conference Information | |
| Committee | SR SRW |
| Conference Date | 2016-05-16 - 2016-05-17 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hotel Lasaretti, Oulu, Finland |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | SmartCom2016 |
| Paper Information | |
| Registration To | SR |
| Conference Code | 2016-05-SR-SRW |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Propagation Model and Mechanism on Null-Space Dimension Expansion for Multi-User MIMO Tolerant to Channel Fluctuation |
| Sub Title (in English) | |
| Keyword(1) | adaptive array antenna |
| Keyword(2) | degree of freedom |
| Keyword(3) | MIMO |
| Keyword(4) | diversity |
| Keyword(5) | zero-forcing |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Daichi Tokuyasu |
| 1st Author's Affiliation | Fukuoka University (Fukuoka Univ.) |
| 2nd Author's Name | Makoto Taromaru |
| 2nd Author's Affiliation | Fukuoka University (Fukuoka Univ.) |
| 3rd Author's Name | Ryosuke Ono |
| 3rd Author's Affiliation | Fukuoka University (Fukuoka Univ.) |
| 4th Author's Name | Mai Ohta |
| 4th Author's Affiliation | Fukuoka University (Fukuoka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2016-05-17 14:00:00 |
| Presentation Time | 100 minutes |
| Registration for | SR |
| Paper # | SR2016-21, SRW2016-18 |
| Volume (vol) | vol.116 |
| Number (no) | no.29(SR), no.30(SRW) |
| Page | pp.73-74(SR), pp.61-62(SRW) |
| #Pages | 2 |
| Date of Issue | 2016-05-09 (SR, SRW) |
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