Paper Abstract and Keywords |
Presentation |
2022-01-21 14:20
[Encouragement Talk]
Ultra-Wide Coverage and High-Capacity Massive MIMO System for High-Altitude Platform Stations Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank) IT2021-79 SIP2021-87 RCS2021-247 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Coverage extension to the sky, seas, and elsewhere is one of the important concepts of the 6th generation (6G) mobile communications. High-altitude platform stations (HAPS) have attracted much attention as a leading candidate for the coverage extension. Service link capacity can be increased by using massive MIMO (mMIMO) systems with a large number of antenna elements. However, the coverage radius achieved by a conventional planar array antenna is limited to only tens of kilometers. This paper proposes a cylindrical mMIMO system that achieves ultra-wide coverage of a radius 100 km as well as high capacity. Assuming the service area with a radius 100 km, simulation results demonstrate that the proposed system improves the signal-to-interference-plus-noise ratio around the boundaries of the area by about 9 dB, and it achieves around 1.5 times as high capacity as a conventional mMIMO system with the planar array antenna. In addition, a low-complexity user selection algorithm is also proposed, which can efficiently group the users with low spatial correlations based on their angle information. The proposed algorithm is evaluated under real-world population distribution scenarios in Kanto region. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
high-altitude platform station (HAPS) / cylindrical array antenna / massive MIMO / user selection / 6G / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 329, RCS2021-247, pp. 288-288, Jan. 2022. |
Paper # |
RCS2021-247 |
Date of Issue |
2022-01-13 (IT, SIP, 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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IT2021-79 SIP2021-87 RCS2021-247 |
Conference Information |
Committee |
RCS SIP IT |
Conference Date |
2022-01-20 - 2022-01-21 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
RCS |
Conference Code |
2022-01-RCS-SIP-IT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
Ultra-Wide Coverage and High-Capacity Massive MIMO System for High-Altitude Platform Stations |
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high-altitude platform station (HAPS) |
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cylindrical array antenna |
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massive MIMO |
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user selection |
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6G |
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1st Author's Name |
Koji Tashiro |
1st Author's Affiliation |
SoftBank Corp. (SoftBank) |
2nd Author's Name |
Kenji Hoshino |
2nd Author's Affiliation |
SoftBank Corp. (SoftBank) |
3rd Author's Name |
Atsushi Nagate |
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SoftBank Corp. (SoftBank) |
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Speaker |
Author-1 |
Date Time |
2022-01-21 14:20:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
IT2021-79, SIP2021-87, RCS2021-247 |
Volume (vol) |
vol.121 |
Number (no) |
no.327(IT), no.328(SIP), no.329(RCS) |
Page |
p.288 |
#Pages |
1 |
Date of Issue |
2022-01-13 (IT, SIP, RCS) |
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