Title:
SYMBOL DETERMINATION DEVICE, SYMBOL DETERMINATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/144966
Kind Code:
A1
Abstract:
According to the present invention, a plurality of candidate symbol sequences that are candidates for transmission signal sequences formed from transmission symbols are generated by using each of the plurality of generated candidate symbol sequences as input sequences, an estimated reception symbol is output that is obtained as an output when given to a function approximator for approximating a transfer function of a transmission channel for transmitting the transmission signal sequences, an estimated transmission symbol corresponding to a determination target reception symbol sequence is identified by determining a transmission symbol by means of maximum likelihood sequence estimation on the basis of the determination target reception symbol sequence obtained from the reception signal sequence when the transmission channel transmits the transmission signal sequence and the estimated reception symbol for each candidate symbol sequence, and when using, as an input sequence, the transmission signal sequence transmitted when the reception signal sequence is received or a sequence obtained from the estimated transmission signal sequence formed from the estimated transmission symbols, the function approximator is optimized so that the determination target reception symbols forming the determination target reception symbol sequence are obtained as an output.
Inventors:
TANIGUCHI HIROKI (JP)
YAMAMOTO SHUTO (JP)
MASUDA AKIRA (JP)
KISAKA YOSHIAKI (JP)
YAMAMOTO SHUTO (JP)
MASUDA AKIRA (JP)
KISAKA YOSHIAKI (JP)
Application Number:
PCT/JP2022/003121
Publication Date:
August 03, 2023
Filing Date:
January 27, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B3/04; H04B10/69
Other References:
MASUDA AKIRA; YAMAMOTO SHUTO; TANIGUCHI HIROKI; NAKAMURA MASANORI; KISAKA YOSHIAKI: "255-Gbps PAM-8 Transmission under 20-GHz Bandwidth Limitation using NL-MLSE Based on Volterra Filter", 2019 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), OSA, 3 March 2019 (2019-03-03), pages 1 - 3, XP033540247
TANIGUCHI HIROKI; YAMAMOTO SHUTO; MASUDA AKIRA; KISAKA YOSHIAKI; KANAZAWA SHIGERU: "800-Gbps PAM-4 2-km Transmission using $4-\lambda$ LAN-WDM TOSA with MLSE based on Deep Neural Network", 2022 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), OSA, 6 March 2022 (2022-03-06), pages 1 - 3, XP034109651
谷口寛樹 他, トレリスパス制限MLSE適用による255-Gbps PAM8 O帯 SMF 10-km伝送の実証, 信学技報, 09 January 2020, vol. 119, no. 366 , OCS2019-65, pp. 1-6
谷口寛樹 他, 非線形チャネル推定に基づくMLSEを用いた20-GHz帯域制限環境下におけるO帯255-Gb/s PAM-8光伝送の実証, 信学技報, 13 June 2019, vol. 119, no. 93, OCS2019-18, pp. 43-46
YAMAMOTO SHUTO, TANIGUCHI HIROKI, NAKAMURA MASANORI, KISAKA YOSHIAKI: "93-Gbaud PAM4 O-Band Transmission Using Nonlinear Spectral Shaping with Transition-Likelihood-Based Decoding", 2020 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATIONS (ECOC), IEEE, 1 December 2020 (2020-12-01) - 10 December 2020 (2020-12-10), pages 1 - 4, XP093081595, ISBN: 978-1-7281-7361-0, DOI: 10.1109/ECOC48923.2020.9333259
TANIGUCHI HIROKI; YAMAMOTO SHUTO; MASUDA AKIRA; KISAKA YOSHIAKI; KANAZAWA SHIGERU: "800-Gbps PAM-4 2-km Transmission using $4-\lambda$ LAN-WDM TOSA with MLSE based on Deep Neural Network", 2022 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), OSA, 6 March 2022 (2022-03-06), pages 1 - 3, XP034109651
谷口寛樹 他, トレリスパス制限MLSE適用による255-Gbps PAM8 O帯 SMF 10-km伝送の実証, 信学技報, 09 January 2020, vol. 119, no. 366 , OCS2019-65, pp. 1-6
谷口寛樹 他, 非線形チャネル推定に基づくMLSEを用いた20-GHz帯域制限環境下におけるO帯255-Gb/s PAM-8光伝送の実証, 信学技報, 13 June 2019, vol. 119, no. 93, OCS2019-18, pp. 43-46
YAMAMOTO SHUTO, TANIGUCHI HIROKI, NAKAMURA MASANORI, KISAKA YOSHIAKI: "93-Gbaud PAM4 O-Band Transmission Using Nonlinear Spectral Shaping with Transition-Likelihood-Based Decoding", 2020 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATIONS (ECOC), IEEE, 1 December 2020 (2020-12-01) - 10 December 2020 (2020-12-10), pages 1 - 4, XP093081595, ISBN: 978-1-7281-7361-0, DOI: 10.1109/ECOC48923.2020.9333259
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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