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| Presentation | 2011-03-04 11:30 Transmit/Receive Schemes Based on Amount of Information at Transmitter/Receiver in Base Station Cooperative MIMO Mitsuki Yamada, Tomoaki Ohtsuki (Keio Univ.)  RCS2010-305 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In cellular MIMO system, user in a cell center area can achieve high throughput. However, user in a cell edge area cannot, because long-distance propagation attenuates an electric wave and because cell edge user receives interference from different cells. For supporting large throughput performance in the cell edge user, base station cooperation (BSC) MIMO is attracting much attention. BSC-MIMO makes the signal transmitted from the adjacent BS change from the interference to the desired signal. BS uses beamforming technique to avoid intra and inter cell interferences. If BS has channel state information (CSI) from each BS to each user, the beamforming technique is possible to eliminate interference perfectly. However, the discussions above are not valid in practical environments, because it assumes that BS has all users’ CSI in the system. If all users feed back CSI, the system needs to have a very huge feedback link. Therefore, it is important to reduce the amount of feedback information from the receivers to BS. In this report, we propose the algorithm to improve the cell edge performance with limited feedback. The main idea of the proposed algorithm is receiving CSI only from a specific user. The proposed algorithm selects user without feedback, and only the selected users feed back CSI. We evaluate the proposing algorithms using the computer simulation. As the simulation results, we show that the proposed algorithm improve the cell edge MS capacity. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MIMO / Base Station Cooperation MIMO / Feedback / Codebook / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 433, RCS2010-305, pp. 331-336, March 2011. | |
| Paper # | RCS2010-305 | |
| Date of Issue | 2011-02-23 (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 | RCS2010-305 |
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| Conference Information | |
| Committee | RCS MoNA SR |
| Conference Date | 2011-03-02 - 2011-03-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2011-03-RCS-MoMuC-SR |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Transmit/Receive Schemes Based on Amount of Information at Transmitter/Receiver in Base Station Cooperative MIMO |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | Base Station Cooperation MIMO |
| Keyword(3) | Feedback |
| Keyword(4) | Codebook |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Mitsuki Yamada |
| 1st Author's Affiliation | Keio University (Keio Univ.) |
| 2nd Author's Name | Tomoaki Ohtsuki |
| 2nd Author's Affiliation | Keio University (Keio Univ.) |
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| Speaker | Author-1 |
| Date Time | 2011-03-04 11:30:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2010-305 |
| Volume (vol) | vol.110 |
| Number (no) | no.433 |
| Page | pp.331-336 |
| #Pages | 6 |
| Date of Issue | 2011-02-23 (RCS) |
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