Paper Abstract and Keywords |
Presentation |
2020-06-25 10:50
Suppression of performance degradation due to misalignment in OAM multiplexing Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba) RCS2020-33 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In recent years, mobile data traffic has increased explosively due to increasing wireless devices. Capacity enhancement is required for fronthaul and backhaul accordingly. Spatial multiplex transmission using orbital
angular momentum (OAM) has been attracting attention as a solution. One of the OAM multiplexing methods is
to use an uniform circular array (UCA). It is known that the performance deteriorates seriously when there is misalignment between the UCAs at both sides. In this paper, the UCA installation height is shifted on the transmitting
or receiving sides and the UCA surface is slanted on the transmitting or receiving sides. We investigate performance
deterioration and propose a method of improvement. It is found that the channel symmetry was broken by the
slight misalignment, and total throughput can be improved by MMSE weights, while the throughput was degraded
by DFT weights. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Orbital angular momentum / Uniform circular array / Spatial multiplexing / misalignment / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 120, no. 74, RCS2020-33, pp. 61-66, June 2020. |
Paper # |
RCS2020-33 |
Date of Issue |
2020-06-17 (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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RCS2020-33 |
Conference Information |
Committee |
RCS |
Conference Date |
2020-06-24 - 2020-06-26 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2020-06-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Suppression of performance degradation due to misalignment in OAM multiplexing |
Sub Title (in English) |
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Keyword(1) |
Orbital angular momentum |
Keyword(2) |
Uniform circular array |
Keyword(3) |
Spatial multiplexing |
Keyword(4) |
misalignment |
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1st Author's Name |
Nobuhiko Sakuraya |
1st Author's Affiliation |
Hokkaido University (Hokkaido Univ) |
2nd Author's Name |
Toshihiko Nishimura |
2nd Author's Affiliation |
Hokkaido University (Hokkaido Univ) |
3rd Author's Name |
Takeo Ohgane |
3rd Author's Affiliation |
Hokkaido University (Hokkaido Univ) |
4th Author's Name |
Tomoya Tandai |
4th Author's Affiliation |
Toshiba (Toshiba) |
5th Author's Name |
Daisuke Uchida |
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Toshiba (Toshiba) |
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Speaker |
Author-1 |
Date Time |
2020-06-25 10:50:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2020-33 |
Volume (vol) |
vol.120 |
Number (no) |
no.74 |
Page |
pp.61-66 |
#Pages |
6 |
Date of Issue |
2020-06-17 (RCS) |
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