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| Presentation | 2011-07-15 16:30 [Invited Talk] Multi-user MIMO technique in IEEE802.11ac Koichi Ishihara, Yusuke Asai, Riichi Kudo, Takeo Ichikawa, Masato Mizoguchi (NTT)  AN2011-19 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The standardization activities of microwave wireless LAN system for next generation, which targets more than 1 Gbit/s of system throughput, started in IEEE802.11 task group (TG)ac, which targets more than 1 Gbit/s of system throughput. One of the key techniques to achieve such high throughput is downlink (DL) multi-user MIMO (MU-MIMO). DL MU-MIMO technique enables simultaneous transmission of data to multiple terminals at the same time and on the same radio frequency (i.e., space-division multiple access or SDMA) by transmit beamforming at AP with multiple antennas. Consequently, higher spectral efficiency will be expected than that of single user transmission. We have proposed DL MU-MIMO related techniques and contributed to the activities of TGac. In this paper, we introduce recent trend in IEEE802.11 TGac and introduce our activities at TGac. Furthermore, we present indoor experimental results of real-time DL MU-MIMO transmission which supposes to PHY layer in TGac, and show that DL MU-MIMO is effective to improve the system throughput. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | IEEE802.11ac / MU-MIMO / Wireless LAN / Transmission beamforming / CSI feedback / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 139, AN2011-19, pp. 71-76, July 2011. | |
| Paper # | AN2011-19 | |
| Date of Issue | 2011-07-08 (AN) | |
| 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 | AN2011-19 |
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| Conference Information | |
| Committee | AN |
| Conference Date | 2011-07-15 - 2011-07-15 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyoto Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | etc. |
| Paper Information | |
| Registration To | AN |
| Conference Code | 2011-07-AN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multi-user MIMO technique in IEEE802.11ac |
| Sub Title (in English) | |
| Keyword(1) | IEEE802.11ac |
| Keyword(2) | MU-MIMO |
| Keyword(3) | Wireless LAN |
| Keyword(4) | Transmission beamforming |
| Keyword(5) | CSI feedback |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Koichi Ishihara |
| 1st Author's Affiliation | NTT (NTT) |
| 2nd Author's Name | Yusuke Asai |
| 2nd Author's Affiliation | NTT (NTT) |
| 3rd Author's Name | Riichi Kudo |
| 3rd Author's Affiliation | NTT (NTT) |
| 4th Author's Name | Takeo Ichikawa |
| 4th Author's Affiliation | NTT (NTT) |
| 5th Author's Name | Masato Mizoguchi |
| 5th Author's Affiliation | NTT (NTT) |
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| Speaker | Author-1 |
| Date Time | 2011-07-15 16:30:00 |
| Presentation Time | 35 minutes |
| Registration for | AN |
| Paper # | AN2011-19 |
| Volume (vol) | vol.111 |
| Number (no) | no.139 |
| Page | pp.71-76 |
| #Pages | 6 |
| Date of Issue | 2011-07-08 (AN) |
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