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| Presentation | 2015-08-18 15:30 Uplink Interference Suppression by MMSE-CMA Adaptive Array on Multicell Massive MIMO Systems Kazuki Maruta, Atsushi Ohta, Yushi Shirato, Satoshi Kurosaki, Takuto Arai, Tatsuhiko Iwakuni, Masataka Iizuka (NTT)  RCS2015-154 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes uplink interference suppression scheme for multicell massive MIMO systems. Single frequency reuse is required for effective frequency resource utilization but it increases inter-cell interference (ICI) that severely degrades communication quality. Mulituser MIMO is also effective in improving spectral efficiency. Though the orthogonal pilot sequences enables efficient channel estimation for the number of users spatially multiplexed, they must be reused among cells due to the limitation of orthogonal sequence set. It causes pilot contamination and inter-user interference (IUI) cannot be suppressed enough. In the massive MIMO systems, ICI and IUI can be suppressed since base station has excess degrees of freedom (DoFs). We apply constant modulus algorithm (CMA) adaptive array to the output of minimum mean-square error (MMSE) reception. MMSE weight enables CMA to capture desired signal and CMA effectively suppresses IUI and ICI. Computer simulation revealed that CDF=5% value of SINR can be improved by 17 dB when base station equips 100 antennas. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Massive MIMO / Inter-Cell Interference / Pilot Contamination / Adaptive Array / Constant Modulus Algorithm / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 181, RCS2015-154, pp. 129-134, Aug. 2015. | |
| Paper # | RCS2015-154 | |
| Date of Issue | 2015-08-10 (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 | RCS2015-154 |
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| Conference Information | |
| Committee | RCS SAT |
| Conference Date | 2015-08-17 - 2015-08-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukuoka Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Satellite Communications, Broadcasting, Error Correction, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2015-08-RCS-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Uplink Interference Suppression by MMSE-CMA Adaptive Array on Multicell Massive MIMO Systems |
| Sub Title (in English) | |
| Keyword(1) | Massive MIMO |
| Keyword(2) | Inter-Cell Interference |
| Keyword(3) | Pilot Contamination |
| Keyword(4) | Adaptive Array |
| Keyword(5) | Constant Modulus Algorithm |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kazuki Maruta |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 2nd Author's Name | Atsushi Ohta |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 3rd Author's Name | Yushi Shirato |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 4th Author's Name | Satoshi Kurosaki |
| 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 | Tatsuhiko Iwakuni |
| 6th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
| 7th Author's Name | Masataka Iizuka |
| 7th Author's Affiliation | Nippon Telegraph and Telephone Corporation (NTT) |
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| Speaker | Author-1 |
| Date Time | 2015-08-18 15:30:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2015-154 |
| Volume (vol) | vol.115 |
| Number (no) | no.181 |
| Page | pp.129-134 |
| #Pages | 6 |
| Date of Issue | 2015-08-10 (RCS) |
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