Paper Abstract and Keywords |
Presentation |
2021-11-11 09:55
On Power Allocation Strategy for Realistic Cellular Structured Cluster-wise Distributed MU-MIMO System Sijie Xia, Chang Ge, Qiang Chen, Fumiyuki Adachi (Tohoku Univ.) RCS2021-157 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
With the demanding of higher capacity and higher data rate services in 5G-advanced systems, distributed multi-user multiple-input multiple-output (MU-MIMO) is a promising approach for radio access network (RAN). To avoid a prohibitively high signal processing complexity required for large-scale MU-MIMO, we have been studying cluster-wise distributed MU-MIMO for 5G advanced RAN. Multiple clusters are formed in each cell by K-means algorithm using user locations information. Unfortunately, cluster-wise distributed MU-MIMO introduces the inter-cluster-interference, thereby degrading the link capacity. In order to mitigate the capacity reduction, we recently proposed a sum capacity maximization-based power allocation strategy assuming an unrealistic square-shaped cellular structure.
It should be noted that the cluster shape may be different for a different cellular structure, resulting in a different inter-cluster interference. The aim of this paper is to evaluate the impact of sum capacity maximization-based power allocation strategy in the case of a realistic cellular structure. In this paper, a previously proposed modified K-means based cellular structuring method using antenna locations is considered. The link capacity evaluation is carried out by computer simulation assuming both the close-to-realistic cellular structure and the simple but unrealistic square-shaped cellular structure. It is shown that our previously proposed optimal power allocation strategy can effectively improve the link capacity even in the case of the close-to-realistic cellular structure. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
5G-advanced / Distributed antenna system / Clustering / K-means / Power allocation / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 234, RCS2021-157, pp. 75-79, Nov. 2021. |
Paper # |
RCS2021-157 |
Date of Issue |
2021-11-03 (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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RCS2021-157 |
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 |
RCS |
Conference Code |
2021-11-AP-RCS |
Language |
English |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
On Power Allocation Strategy for Realistic Cellular Structured Cluster-wise Distributed MU-MIMO System |
Sub Title (in English) |
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5G-advanced |
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Distributed antenna system |
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Clustering |
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K-means |
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Power allocation |
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1st Author's Name |
Sijie Xia |
1st Author's Affiliation |
Tohoku University (Tohoku Univ.) |
2nd Author's Name |
Chang Ge |
2nd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
3rd Author's Name |
Qiang Chen |
3rd Author's Affiliation |
Tohoku University (Tohoku Univ.) |
4th Author's Name |
Fumiyuki Adachi |
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Tohoku University (Tohoku Univ.) |
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Speaker |
Author-1 |
Date Time |
2021-11-11 09:55:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2021-157 |
Volume (vol) |
vol.121 |
Number (no) |
no.234 |
Page |
pp.75-79 |
#Pages |
5 |
Date of Issue |
2021-11-03 (RCS) |
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