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| Presentation | 2012-06-21 16:10 Indoor Experiments on 4-by-2 MU-MIMO Considering Various Antenna Arrangements of Base Station in LTE-Advanced Downlink Yuichi Kakishima, Teruo Kawamura, Yoshihisa Kishiyama (NTT DOCOMO), Hidekazu Taoka (DOCOMO Euro Labs.), Hidehiro Andoh (NTT DOCOMO)  RCS2012-56 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper presents indoor experimental results that consider a real propagation environment for 4-by-2 multi-user (MU)-MIMO that achieves up to 1-Gbps throughput using carrier aggregation with 5 component carriers (CCs), i.e., a 90-MHz bandwidth, in the LTE-Advanced downlink. The achievable throughput performance considering various transmitter antenna arrangements, i.e., localized and distributed antenna arrangements, is evaluated using the implemented LTE-Advanced transceiver, where extended channel state information (CSI) feedback based on eigenvalue decomposition (EVD) is implemented for MU-MIMO operation. The indoor experimental results show that the peak throughput exceeding 1 Gbps and average throughput of 920 Mbps are achieved by applying 4-by-2 Rank-4 MU-MIMO with 2 mobile stations in a centralized antenna arrangement. Furthermore, we confirm that, in a distributed antenna arrangement, although the peak throughput of 1 Gbps is not observed, a stable and relatively high throughput is expected. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | LTE-Advanced / OFDMA / multi-user MIMO / BS antenna arrangement / Indoor experiment / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 89, RCS2012-56, pp. 79-84, June 2012. | |
| Paper # | RCS2012-56 | |
| Date of Issue | 2012-06-14 (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 | RCS2012-56 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2012-06-21 - 2012-06-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hakodate City Central Library |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2012-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Indoor Experiments on 4-by-2 MU-MIMO Considering Various Antenna Arrangements of Base Station in LTE-Advanced Downlink |
| Sub Title (in English) | |
| Keyword(1) | LTE-Advanced |
| Keyword(2) | OFDMA |
| Keyword(3) | multi-user MIMO |
| Keyword(4) | BS antenna arrangement |
| Keyword(5) | Indoor experiment |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yuichi Kakishima |
| 1st Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 2nd Author's Name | Teruo Kawamura |
| 2nd Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 3rd Author's Name | Yoshihisa Kishiyama |
| 3rd Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 4th Author's Name | Hidekazu Taoka |
| 4th Author's Affiliation | DOCOMO Communications Laboratories Europe GmbH (DOCOMO Euro Labs.) |
| 5th Author's Name | Hidehiro Andoh |
| 5th Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
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| Speaker | Author-1 |
| Date Time | 2012-06-21 16:10:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2012-56 |
| Volume (vol) | vol.112 |
| Number (no) | no.89 |
| Page | pp.79-84 |
| #Pages | 6 |
| Date of Issue | 2012-06-14 (RCS) |
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