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| Presentation | 2015-11-04 12:15 Transmission Performance Evaluation of Multiuser Massive MIMO Null-Space Expansion for Time Varying Channel Tatsuhiko Iwakuni, Kazuki Maruta, Atsushi Ohta, Yushi Shirato, Takuto Arai, Masataka Iizuka (NTT)  RCS2015-198 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Inter-user interference (IUI) caused by channel time variation reduces multiuser MIMO transmission capacity. Massive MIMO null-space expansion was proposed to suppress it. This paper further investigates IUI suppression performance of null-space expansion by focusing propagation parameters such as K factor and angular spread which affect channel correlation. The vector space of channel time variation is evaluated by using singular value decomposition. IUI suppression via null-space expansion becomes effective in LoS (Line-of-Sight) dominant channel environment, which provides limited vector space of channel time variation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Massive MIMO / Channel Time Variation / Inter-User Interference / Null-Space Expansion / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 288, RCS2015-198, pp. 49-54, Nov. 2015. | |
| Paper # | RCS2015-198 | |
| Date of Issue | 2015-10-28 (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 | RCS2015-198 |
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| Conference Information | |
| Committee | AP RCS WPT SAT |
| Conference Date | 2015-11-04 - 2015-11-06 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Prefectural Museum & Art Museum |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antenna and Propagation, Radio Communication, Satelite Communication, Wireless Power Transfer |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2015-11-AP-RCS-WPT-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Transmission Performance Evaluation of Multiuser Massive MIMO Null-Space Expansion for Time Varying Channel |
| Sub Title (in English) | |
| Keyword(1) | Massive MIMO |
| Keyword(2) | Channel Time Variation |
| Keyword(3) | Inter-User Interference |
| Keyword(4) | Null-Space Expansion |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tatsuhiko Iwakuni |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 2nd Author's Name | Kazuki Maruta |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 3rd Author's Name | Atsushi Ohta |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 4th Author's Name | Yushi Shirato |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 5th Author's Name | Takuto Arai |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 6th Author's Name | Masataka Iizuka |
| 6th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
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| Speaker | Author-1 |
| Date Time | 2015-11-04 12:15:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2015-198 |
| Volume (vol) | vol.115 |
| Number (no) | no.288 |
| Page | pp.49-54 |
| #Pages | 6 |
| Date of Issue | 2015-10-28 (RCS) |
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