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| Presentation | 2016-03-04 15:30 A study of regenerative relay in linearly precoded MU-MIMO downlink Kentaro Iida, Yasunori Iwanami (N.I.T.)  RCS2015-396 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, Muti-User MIMO (MU-MIMO) downlink system which uses multiple transmit antennas at base station and accommodates multiple users with multiple receive antennas attracts much attention. In MU-MIMO downlink system, by knowing the Channel State Information (CSI) at the base station, Inter User Interferences (IUI’s) among users are pre-excluded at the base station. By increasing the number of transmit antennas at base station assigned to each user, the transmission quality of each user is improved. In MU-MIMO, there exists linear precoding or nonlinear precoding method, but linear precoding is considered more easily implemented and adjusted than nonlinear precoding. In this paper, we aim to extend the coverage and improve the transmission quality by using a regenerative Detect & Forward (DF) relay in MU-MIMO downlink system with BD (Block Diagonalization) + Eigen mode transmission (E-SDM). By sharing the block diagonalization matrix at both base station and DF relay, the DF relay can detect the receive signal only with the receive CSI and can forward the signal to each user during the second time slot also by using BD + Eigen mode transmission. Under this system configuration, we have shown the effectiveness of using regenerative relay. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MU-MIMO / Block Diagonalization / Eigen mode transmission / Regenerative relay / Detect & Forward / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 472, RCS2015-396, pp. 369-374, March 2016. | |
| Paper # | RCS2015-396 | |
| Date of Issue | 2016-02-24 (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 | RCS2015-396 |
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| Conference Information | |
| Committee | RCS CCS SR SRW |
| Conference Date | 2016-03-02 - 2016-03-04 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2016-03-RCS-CCS-SR-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of regenerative relay in linearly precoded MU-MIMO downlink |
| Sub Title (in English) | |
| Keyword(1) | MU-MIMO |
| Keyword(2) | Block Diagonalization |
| Keyword(3) | Eigen mode transmission |
| Keyword(4) | Regenerative relay |
| Keyword(5) | Detect & Forward |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kentaro Iida |
| 1st Author's Affiliation | Nagoya Institute of Technology (N.I.T.) |
| 2nd Author's Name | Yasunori Iwanami |
| 2nd Author's Affiliation | Nagoya Institute of Technology (N.I.T.) |
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| Speaker | Author-1 |
| Date Time | 2016-03-04 15:30:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2015-396 |
| Volume (vol) | vol.115 |
| Number (no) | no.472 |
| Page | pp.369-374 |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (RCS) |
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