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| Presentation | 2019-04-19 09:30 A Study on Low Complexity Fair User Scheduling Employing Spatial Orthogonality for MU-MIMO Systems Ei Nandar Maung, Yukiko Shimbo, Hirofumi Suganuma, Fumiaki Maehara (Waseda Univ.)  RCS2019-13 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This report proposes a low complexity fair user scheduling method employing semiorthogonal user selection (SUS) for multi-user multiple-input multi-output (MU-MIMO) systems. The intent of the proposed approach is to consider the spatial orthogonality of users into fair user scheduling of the MU-MIMO system, which enhances the system capacity when compared to the traditional round robin (RR) based user scheduling. In the proposed method, the spatial orthogonality is calculated based on SUS which only requires the calculation of inner products among the channel state information (CSI). Therefore, both the improvement of the system capacity and fairness can be achieved with a reduced computational load. Moreover, in contrast to proportional fairness (PF), the proposed user scheduling does not require the heavy calculation of all possible user combinations as is required in MU-MIMO precoding, which is an effective and practical approach. The effectiveness of the proposed method is demonstrated and compared with RR and PF in terms of fairness and computational load. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MU-MIMO / round robin / semiorthogonal user selection / computational cost / system capacity / fairness index / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 8, RCS2019-13, pp. 55-59, April 2019. | |
| Paper # | RCS2019-13 | |
| Date of Issue | 2019-04-11 (RCS) | |
| ISSN | 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 | RCS2019-13 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2019-04-18 - 2019-04-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Noboribetsu Grand Hotel |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Radio Access Technologies, Wireless Communications, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2019-04-RCS |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Low Complexity Fair User Scheduling Employing Spatial Orthogonality for MU-MIMO Systems |
| Sub Title (in English) | |
| Keyword(1) | MU-MIMO |
| Keyword(2) | round robin |
| Keyword(3) | semiorthogonal user selection |
| Keyword(4) | computational cost |
| Keyword(5) | system capacity |
| Keyword(6) | fairness index |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ei Nandar Maung |
| 1st Author's Affiliation | Waseda University (Waseda Univ.) |
| 2nd Author's Name | Yukiko Shimbo |
| 2nd Author's Affiliation | Waseda University (Waseda Univ.) |
| 3rd Author's Name | Hirofumi Suganuma |
| 3rd Author's Affiliation | Waseda University (Waseda Univ.) |
| 4th Author's Name | Fumiaki Maehara |
| 4th Author's Affiliation | Waseda University (Waseda Univ.) |
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| Speaker | Author-1 |
| Date Time | 2019-04-19 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2019-13 |
| Volume (vol) | vol.119 |
| Number (no) | no.8 |
| Page | pp.55-59 |
| #Pages | 5 |
| Date of Issue | 2019-04-11 (RCS) |
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