Fast-adaptive weighted constellation designs based on hybrid constellation shaping for long-haul optical fiber communication systems

Wenmao Zhou; Qi Zhang; Ran Gao; Xiangjun Xin; Bingchun Liu; Xishuo Wang; Feng Tian; Qinghua Tian; Xia Sheng; Yongjun Wang; Huan Chang; Leijing Yang

doi:10.1002/mop.32846

Fast-adaptive weighted constellation designs based on hybrid constellation shaping for long-haul optical fiber communication systems

Wenmao Zhou, Qi Zhang^*, Ran Gao, Xiangjun Xin, Bingchun Liu, Xishuo Wang, Feng Tian, Qinghua Tian, Xia Sheng, Yongjun Wang, Huan Chang, Leijing Yang

^*Corresponding author for this work

School of Information and Electronics

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A novel fast-adaptive weighted hybrid-shaped M-ary quadrature amplitude modulation (HS-MQAM) format is proposed in this paper. By introducing a fast-adaptive weighting factor array related to geometric shaping and probabilistic shaping, the non-linear impairment is mitigated and the bit error rate (BER) and mutual information (MI) performances are further improved. The simulation results show that the proposed HS-61QAM outperforms both geometric-shaped 61 quadrature amplitude modulation (GS-61QAM) and regular 64QAM, and has more obvious advantages in the long-haul optical transmission system. For a 120-Gb/s optical communication system over 10 × 75 km fiber transmission link, compared with GS-61QAM and regular 64QAM, the proposed approach can achieve about 4.2 and 8 dB OSNR gain at the BER of 10⁻², and 0.21 and 0.55 bits/symbol MI gain at the OSNR of 22 dB.

Original language	English
Pages (from-to)	1984-1989
Number of pages	6
Journal	Microwave and Optical Technology Letters
Volume	63
Issue number	7
DOIs	https://doi.org/10.1002/mop.32846
Publication status	Published - Jul 2021

Keywords

advanced modulation formats
geometric shaping
hybrid shaping
probabilistic shaping
quadrature amplitude modulation

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title = "Fast-adaptive weighted constellation designs based on hybrid constellation shaping for long-haul optical fiber communication systems",

abstract = "A novel fast-adaptive weighted hybrid-shaped M-ary quadrature amplitude modulation (HS-MQAM) format is proposed in this paper. By introducing a fast-adaptive weighting factor array related to geometric shaping and probabilistic shaping, the non-linear impairment is mitigated and the bit error rate (BER) and mutual information (MI) performances are further improved. The simulation results show that the proposed HS-61QAM outperforms both geometric-shaped 61 quadrature amplitude modulation (GS-61QAM) and regular 64QAM, and has more obvious advantages in the long-haul optical transmission system. For a 120-Gb/s optical communication system over 10 × 75 km fiber transmission link, compared with GS-61QAM and regular 64QAM, the proposed approach can achieve about 4.2 and 8 dB OSNR gain at the BER of 10−2, and 0.21 and 0.55 bits/symbol MI gain at the OSNR of 22 dB.",

keywords = "advanced modulation formats, geometric shaping, hybrid shaping, probabilistic shaping, quadrature amplitude modulation",

author = "Wenmao Zhou and Qi Zhang and Ran Gao and Xiangjun Xin and Bingchun Liu and Xishuo Wang and Feng Tian and Qinghua Tian and Xia Sheng and Yongjun Wang and Huan Chang and Leijing Yang",

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year = "2021",

month = jul,

doi = "10.1002/mop.32846",

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AU - Zhou, Wenmao

AU - Zhang, Qi

AU - Gao, Ran

AU - Xin, Xiangjun

AU - Liu, Bingchun

AU - Wang, Xishuo

AU - Tian, Feng

AU - Tian, Qinghua

AU - Sheng, Xia

AU - Wang, Yongjun

AU - Chang, Huan

AU - Yang, Leijing

PY - 2021/7

Y1 - 2021/7

N2 - A novel fast-adaptive weighted hybrid-shaped M-ary quadrature amplitude modulation (HS-MQAM) format is proposed in this paper. By introducing a fast-adaptive weighting factor array related to geometric shaping and probabilistic shaping, the non-linear impairment is mitigated and the bit error rate (BER) and mutual information (MI) performances are further improved. The simulation results show that the proposed HS-61QAM outperforms both geometric-shaped 61 quadrature amplitude modulation (GS-61QAM) and regular 64QAM, and has more obvious advantages in the long-haul optical transmission system. For a 120-Gb/s optical communication system over 10 × 75 km fiber transmission link, compared with GS-61QAM and regular 64QAM, the proposed approach can achieve about 4.2 and 8 dB OSNR gain at the BER of 10−2, and 0.21 and 0.55 bits/symbol MI gain at the OSNR of 22 dB.

AB - A novel fast-adaptive weighted hybrid-shaped M-ary quadrature amplitude modulation (HS-MQAM) format is proposed in this paper. By introducing a fast-adaptive weighting factor array related to geometric shaping and probabilistic shaping, the non-linear impairment is mitigated and the bit error rate (BER) and mutual information (MI) performances are further improved. The simulation results show that the proposed HS-61QAM outperforms both geometric-shaped 61 quadrature amplitude modulation (GS-61QAM) and regular 64QAM, and has more obvious advantages in the long-haul optical transmission system. For a 120-Gb/s optical communication system over 10 × 75 km fiber transmission link, compared with GS-61QAM and regular 64QAM, the proposed approach can achieve about 4.2 and 8 dB OSNR gain at the BER of 10−2, and 0.21 and 0.55 bits/symbol MI gain at the OSNR of 22 dB.

KW - advanced modulation formats

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KW - hybrid shaping

KW - probabilistic shaping

KW - quadrature amplitude modulation

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SP - 1984

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JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

IS - 7

ER -

Fast-adaptive weighted constellation designs based on hybrid constellation shaping for long-haul optical fiber communication systems

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Keywords

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