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| Paper Abstract and Keywords | ||
| Presentation | 2022-01-21 11:45 Study on compensation for axis misalignment of UCA with multiple UCAs Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba)  IT2021-76 SIP2021-84 RCS2021-244 |
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| 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. Studies on spatial multiplex transmission using orbital angular momentum (OAM) has been undergoing as a solution. One of the OAM multiplexing methods is the use of uniform circular array (UCA). It is known that the performance deteriorates seriously if there are misalignments of the UCA at transmitter and/or receiver. In this paper, we propose a method of compensation for the degradation using maximum ratio transmission scheme for multiple UCAs in the transmitter side. We also compared the performance of double UCAs or single UCAs when the number of elements on the transmitter side was fixed, and confirmed the robustness to misalignment. As a result, the double UCA could increase the misalignment robustness compared to the single UCA. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Orbital angular momentum / Uniform circular array / Spatial multiplexing / misalignment / multiple UCAs / maximum ration combining / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 329, RCS2021-244, pp. 270-275, Jan. 2022. | |
| Paper # | RCS2021-244 | |
| 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) | |
| Download PDF | IT2021-76 SIP2021-84 RCS2021-244 |
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| 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) |
| Topics (in English) | |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2022-01-RCS-SIP-IT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on compensation for axis misalignment of UCA with multiple UCAs |
| Sub Title (in English) | |
| Keyword(1) | Orbital angular momentum |
| Keyword(2) | Uniform circular array |
| Keyword(3) | Spatial multiplexing |
| Keyword(4) | misalignment |
| Keyword(5) | multiple UCAs |
| Keyword(6) | maximum ration combining |
| Keyword(7) | |
| Keyword(8) | |
| 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 |
| 5th Author's Affiliation | Toshiba (Toshiba) |
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| Speaker | Author-1 |
| Date Time | 2022-01-21 11:45:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | IT2021-76, SIP2021-84, RCS2021-244 |
| Volume (vol) | vol.121 |
| Number (no) | no.327(IT), no.328(SIP), no.329(RCS) |
| Page | pp.270-275 |
| #Pages | 6 |
| Date of Issue | 2022-01-13 (IT, SIP, RCS) |
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