| Presentation | 2022-10-20 Signal Phase Recovery Using Digital Signal Processing in Optical Wireless Communication Systems Ryoma Murakami, Shiro Ryu, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Research and development of optical wireless communication systems has been active. Optical receivers usually use a phase-locked loop (PLL) to regenerate the clock, but recent advances in digital signal processing technology have made phase-locking without a PLL possible. However, recent advances in digital signal processing technology have made phase-locking without a PLL possible. Therefore, in this paper, software-based signal phase regeneration processes such as M-th power phase estimation method and decision-directed phase estimation method has been applied to multi-level modulation scheme experiments. Moreover, experiments using a simultaneous clock transmission method, in which clock signal is simultaneously transmitted with a different wavelength from a signal wave were conducted. As a result, it was confirmed that stable communication is possible within a certain distance without using PLL in the multi-level modulation scheme. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical Wireless Communications / Phase Estimation / Clock Recovery / PLL |
| Paper # | OCS2022-21,OPE2022-67,LQE2022-30 |
| Date of Issue | 2022-10-13 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | OPE / OCS / LQE |
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| Conference Date | 2022/10/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Toshikazu Hashimoto(NTT) / Takeshi Hoshida(Fujitsu) / Junichi Takahara(Osaka Univ.) |
| Vice Chair | Taro Arakawa(Yokohama National Univ.) / / Kosuke Nishimura(KDDI Research) |
| Secretary | Taro Arakawa(Kochi Univ. of Tech) / (Mitsubishi Electric) / Kosuke Nishimura(NTT) |
| Assistant | Yuhei Ishizaka(Kanto Gakuin Univ.) / Takeshi Umeki(NTT) / / Yoshiaki Nishijima(Yokohama National Univ.) / Nobuhiko Nishiyama(Tokyo Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on OptoElectronics / Technical Committee on Optical Communication Systems / Technical Committee on Lasers and Quantum Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Signal Phase Recovery Using Digital Signal Processing in Optical Wireless Communication Systems |
| Sub Title (in English) | |
| Keyword(1) | Optical Wireless Communications |
| Keyword(2) | Phase Estimation |
| Keyword(3) | Clock Recovery |
| Keyword(4) | PLL |
| 1st Author's Name | Ryoma Murakami |
| 1st Author's Affiliation | Meiji University(Meiji Univ.) |
| 2nd Author's Name | Shiro Ryu |
| 2nd Author's Affiliation | Meiji University(Meiji Univ.) |
| Date | 2022-10-20 |
| Paper # | OCS2022-21,OPE2022-67,LQE2022-30 |
| Volume (vol) | vol.122 |
| Number (no) | OCS-216,OPE-217,LQE-218 |
| Page | pp.pp.22-27(OCS), pp.22-27(OPE), pp.22-27(LQE), |
| #Pages | 6 |
| Date of Issue | 2022-10-13 (OCS, OPE, LQE) |