| Presentation | 2022-08-29 Design Method of Pre-equalization Filters to Alleviate Spectrum Narrowing Yoshiaki Ishikawa, Ryuta Shiraki, Yojiro Mori, Hiroshi Hasegawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Spectrum narrowing / Digital signal processing / Pre-equalization |
| Paper # | PN2022-8 |
| Date of Issue | 2022-08-22 (PN) |
| Conference Information | |
| Committee | PN |
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| Conference Date | 2022/8/29(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hideaki Furukawa(NICT) |
| Vice Chair | Kohei Shiomoto(Tokyo City Univ.) / Ryuichi Sugizaki(Furukawa Electric) / Noboru Yoshikane(KDDI Research) |
| Secretary | Kohei Shiomoto(NTT) / Ryuichi Sugizaki(Univ. of Electr-Comm.) / Noboru Yoshikane |
| Assistant | Kenji Ishii(Mitsubishi Electric) / Yojiro Mori(Nagoya Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Photonic Network |
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| Language | JPN |
| 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 |
| 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.) |
| Date | 2022-08-29 |
| Paper # | PN2022-8 |
| Volume (vol) | vol.122 |
| Number (no) | PN-169 |
| Page | pp.pp.1-4(PN), |
| #Pages | 4 |
| Date of Issue | 2022-08-22 (PN) |