Paper Abstract and Keywords |
Presentation |
2021-11-12 13:35
[Invited Lecture]
Examination of user selection method by simple channel capacity estimation using determinant in Coordinated MU-MIMO Shotaro Sasaki, Mitoshi Fujimoto (Univ. Fukui) AP2021-127 RCS2021-173 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this report, a user selection method based on determinant considering interference between base stations is proposed. In the 5th generation mobile communication system (5G), the use of cooperative Multi User-MIMO, which is a high-density distributed antenna system, is being studied in order to improve the frequency utilization efficiency. In MU-MIMO, the combination of users who communicate at the same time greatly affects the channel capacity.
The conventional method, US-D (User Selection based on Determinant), enables selective metric calculation that can obtain a high effect with a low amount of calculation by simple channel capacity estimation using a determinant. However, when assuming cooperative MU-MIMO, interference between base stations is not taken into consideration, As a result, there is a high possibility that the channel capacity of cell-end users will decrease.
In this report, a method to add the degree of orthogonality with the interference channel to the selection metric is proposed. It is verified that the channel capacity improvement effect of about 2 times can be obtained in the entire system while suppressing the increase in the amount of calculation. It is also confirmed that the difference from the proposed method becomes smaller under the condition that the distance between base stations is narrower than 100m. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Coordinated MU-MIMO / Determinant / User scheduling / 5th generation mobile communication system / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 233, AP2021-127, pp. 137-141, Nov. 2021. |
Paper # |
AP2021-127 |
Date of Issue |
2021-11-03 (AP, 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) |
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AP2021-127 RCS2021-173 |
Conference Information |
Committee |
AP RCS |
Conference Date |
2021-11-10 - 2021-11-12 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
NBC-Bekkan (Nagasaki) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
Paper Information |
Registration To |
AP |
Conference Code |
2021-11-AP-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Examination of user selection method by simple channel capacity estimation using determinant in Coordinated MU-MIMO |
Sub Title (in English) |
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Coordinated MU-MIMO |
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Determinant |
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User scheduling |
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5th generation mobile communication system |
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1st Author's Name |
Shotaro Sasaki |
1st Author's Affiliation |
University of Fukui (Univ. Fukui) |
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Mitoshi Fujimoto |
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University of Fukui (Univ. Fukui) |
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Speaker |
Author-1 |
Date Time |
2021-11-12 13:35:00 |
Presentation Time |
25 minutes |
Registration for |
AP |
Paper # |
AP2021-127, RCS2021-173 |
Volume (vol) |
vol.121 |
Number (no) |
no.233(AP), no.234(RCS) |
Page |
pp.137-141(AP), pp.159-163(RCS) |
#Pages |
5 |
Date of Issue |
2021-11-03 (AP, RCS) |
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