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| Presentation | 2008-10-23 15:35 A Consideration on An Improved User Selection Algorithm in Multiuser MIMO Broadcast Zhi Min, Tomoaki Ohtsuki (Keio Univ.)  RCS2008-118 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In multiuser MIMO-BC (Multiple-Input Multiple-Output Broadcasting) systems, user selection is important to achieve multiuser diversity. To achieve this multiuser diversity with a small amount of calculation, we have proposed an improved user selection algorithm in an earlier report, referred to as user re-selection based on spatial orthogonality (URSO), the URSO algorithm achieves higher sum rate capacity than the SUS (Semiorthogonal User Selection) algorithm. Although some studies have been made on the earlier report, what seems to be lacking is the study about calculation complexity and setting of the algorithm threshold. In this report we evaluate the calculation complexity of URSO algorithm by using the amount of complex multiplications as parameters. We also evaluate the URSO algorithm’s execution threshold parameter. We show that the URSO algorithm is shown to have a calculation complexity almost equal to that of the SUS algorithm and they are much lower than that of the optimal user selection algorithm. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Multiuser MIMO / Diversity / User selection / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 249, RCS2008-118, pp. 93-100, Oct. 2008. | |
| Paper # | RCS2008-118 | |
| Date of Issue | 2008-10-15 (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 | RCS2008-118 |
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| Conference Information | |
| Committee | SR RCS USN AN |
| Conference Date | 2008-10-22 - 2008-10-24 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa industry support center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless discributed network special session and general session |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2008-10-SR-RCS-USN-AN |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Consideration on An Improved User Selection Algorithm in Multiuser MIMO Broadcast |
| Sub Title (in English) | |
| Keyword(1) | Multiuser MIMO |
| Keyword(2) | Diversity |
| Keyword(3) | User selection |
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| 1st Author's Name | Zhi Min |
| 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 | 2008-10-23 15:35:00 |
| Presentation Time | 20 minutes |
| Registration for | RCS |
| Paper # | RCS2008-118 |
| Volume (vol) | vol.108 |
| Number (no) | no.249 |
| Page | pp.93-100 |
| #Pages | 8 |
| Date of Issue | 2008-10-15 (RCS) |
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