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| Presentation | 2022-08-29 09:30 Design Method of Pre-equalization Filters to Alleviate Spectrum Narrowing Yoshiaki Ishikawa, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa (Nagoya Univ.)  PN2022-8 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | To satisfy the ever-increasing traffic demand in a cost-effective manner, the use of high-baud signals and dense wavelength-division multiplexing is expected. However, the increase in the signal baud results in severe spectrum narrowing because of bandwidth limitation of digital analog converters (DACs). Furthermore, spectrum narrowing is also caused by bandwidth limitation of wavelength selective switches (WSSs). So far, several pre-equalization schemes were proposed to alleviate spectrum narrowing, where deterministic channel models are utilized; however, passband characteristics of DAC and WSS have deviations caused in the production process or those caused by environment changes. In this paper, we propose a method of creating pre-equalization filters without relying on the channel model, where Bayesian optimization is utilized. Computer simulations confirm the effectiveness of our scheme. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Spectrum narrowing / Digital signal processing / Pre-equalization / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 169, PN2022-8, pp. 1-4, Aug. 2022. | |
| Paper # | PN2022-8 | |
| Date of Issue | 2022-08-22 (PN) | |
| 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 | PN2022-8 |
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| Conference Information | |
| Committee | PN |
| Conference Date | 2022-08-29 - 2022-08-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | PN |
| Conference Code | 2022-08-PN |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design Method of Pre-equalization Filters to Alleviate Spectrum Narrowing |
| Sub Title (in English) | |
| Keyword(1) | Spectrum narrowing |
| Keyword(2) | Digital signal processing |
| Keyword(3) | Pre-equalization |
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| Keyword(8) | |
| 1st Author's Name | Yoshiaki Ishikawa |
| 1st Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 2nd Author's Name | Ryuta Shiraki |
| 2nd Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 3rd Author's Name | Yojiro Mori |
| 3rd Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 4th Author's Name | Hiroshi Hasegawa |
| 4th Author's Affiliation | Nagoya University (Nagoya Univ.) |
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| Speaker | Author-1 |
| Date Time | 2022-08-29 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | PN |
| Paper # | PN2022-8 |
| Volume (vol) | vol.122 |
| Number (no) | no.169 |
| Page | pp.1-4 |
| #Pages | 4 |
| Date of Issue | 2022-08-22 (PN) |
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