Paper Abstract and Keywords |
Presentation |
2017-03-03 14:30
User Selection Algorithm Considering Time Degradation of CSI for MU-MIMO systems Yuhi Kawakita, Yumi Takaki, Tomio Kamada, Chikara Ohta (Kobe Univ.) NS2016-241 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Multiuser MIMO attracts attention as a technology for increasing the speed and capacity of wireless communication. In this paper, we propose PUS-EF, PUS-FUS, and PUS-EF-FUS combining them in order to prevent degradation of orthogonality among transmission target user due to time degradation of CSI. PUS-EF and PUS-FUS are schemes to prevent degradation of orthogonality among transmission target users caused by CSI error. In the former, new CSI users are selected with priority based on the evaluation function that takes account of the elapsed time form CSI final update. In the latter, the newest CSI users are selected with priority in first user selection. We verify the effectiveness of the proposed scheme from the viewpoint of total communication capacity and fairness among users by computer simulation. The results show that the proposed scheme achieves higher total communication capacity and maintains fairness compared to a conventional scheme. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
multiuser MIMO / channel state information / user scheduling / feedback delay / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 116, no. 484, NS2016-241, pp. 481-486, March 2017. |
Paper # |
NS2016-241 |
Date of Issue |
2017-02-23 (NS) |
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) |
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NS2016-241 |
Conference Information |
Committee |
NS IN |
Conference Date |
2017-03-02 - 2017-03-03 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
OKINAWA ZANPAMISAKI ROYAL HOTEL |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General |
Paper Information |
Registration To |
NS |
Conference Code |
2017-03-NS-IN |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
User Selection Algorithm Considering Time Degradation of CSI for MU-MIMO systems |
Sub Title (in English) |
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Keyword(1) |
multiuser MIMO |
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channel state information |
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user scheduling |
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feedback delay |
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1st Author's Name |
Yuhi Kawakita |
1st Author's Affiliation |
Kobe University (Kobe Univ.) |
2nd Author's Name |
Yumi Takaki |
2nd Author's Affiliation |
Kobe University (Kobe Univ.) |
3rd Author's Name |
Tomio Kamada |
3rd Author's Affiliation |
Kobe University (Kobe Univ.) |
4th Author's Name |
Chikara Ohta |
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Kobe University (Kobe Univ.) |
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Speaker |
Author-1 |
Date Time |
2017-03-03 14:30:00 |
Presentation Time |
20 minutes |
Registration for |
NS |
Paper # |
NS2016-241 |
Volume (vol) |
vol.116 |
Number (no) |
no.484 |
Page |
pp.481-486 |
#Pages |
6 |
Date of Issue |
2017-02-23 (NS) |
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