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| Presentation | 2022-01-18 11:10 PSO-based Antenna Tilt Control Method for Cell Outage Compensation in Cellular Networks Masayoshi Iwamoto (NTT), Ryota Kusunoki (JAIST), Akito Suzuki, Masahiro Kobayashi (NTT)  IN2021-24 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Mobile networks are an essential public infrastructure providing multiple services and then necessary to maintain high availability. On the other hand, cells can be out of service (cell outage) due to natural disasters or unexpected failures. Recently, to accommodate the traffic in cell outage areas, cell outage compensation (COC) methods have been proposed to temporarily change antenna down-tilt angles of the frequency band (carrier). In our previous work, we have proposed a heuristic method with less computation time than the existing methods. However, the computation time of our conventional method increases with the number of outage cells, so our method cannot complete in a short period when multiple base stations fail simultaneously. In addition, radio interference can increase when our conventional method changes down-tilt angles of multiple carriers, resulting in the degradation of wireless communication quality. To address these problems, we propose an antenna tilt control method that consolidates the neighboring cell outage areas into one area and then calculates down-tilt angles with particle swarm optimization (PSO). Through simulation evaluations, we show that our proposed method solves the problems of our conventional method and can obtain down-tilt angels that achieve COC while reducing the computation time. |
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| Keyword | (in Japanese) | (See Japanese page) |
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| Reference Info. | IEICE Tech. Rep., vol. 121, no. 324, IN2021-24, pp. 1-6, Jan. 2022. | |
| Paper # | IN2021-24 | |
| Date of Issue | 2022-01-11 (IN) | |
| 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 | IN2021-24 |
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| Conference Information | |
| Committee | IN |
| Conference Date | 2022-01-18 - 2022-01-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Contents Distribution, Social Networking Services, Data Analytics and Processing Platform, Big data, etc. |
| Paper Information | |
| Registration To | IN |
| Conference Code | 2022-01-IN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | PSO-based Antenna Tilt Control Method for Cell Outage Compensation in Cellular Networks |
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| 1st Author's Name | Masayoshi Iwamoto |
| 1st Author's Affiliation | NTT (NTT) |
| 2nd Author's Name | Ryota Kusunoki |
| 2nd Author's Affiliation | Japan Advanced Institute of Science and Technology (JAIST) |
| 3rd Author's Name | Akito Suzuki |
| 3rd Author's Affiliation | NTT (NTT) |
| 4th Author's Name | Masahiro Kobayashi |
| 4th Author's Affiliation | NTT (NTT) |
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| Speaker | Author-1 |
| Date Time | 2022-01-18 11:10:00 |
| Presentation Time | 25 minutes |
| Registration for | IN |
| Paper # | IN2021-24 |
| Volume (vol) | vol.121 |
| Number (no) | no.324 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2022-01-11 (IN) |
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