Probabilistic shaping 16 quadrature amplitude modulation scheme based on trellis-coded modulation for short-reach optical communication

Zongyu Zhang; Qi Zhang; Xishuo Wang; Xiangjun Xin; Ran Gao; Hongxin Zhang; Jianxin Ren; Xiangyu Wu; Xing Xu; Qinghua Tian; Feng Tian; Huan Chang

doi:10.1117/1.OE.59.7.076109

Probabilistic shaping 16 quadrature amplitude modulation scheme based on trellis-coded modulation for short-reach optical communication

Zongyu Zhang, Qi Zhang^*, Xishuo Wang, Xiangjun Xin, Ran Gao, Hongxin Zhang, Jianxin Ren, Xiangyu Wu, Xing Xu, Qinghua Tian, Feng Tian, Huan Chang

^*Corresponding author for this work

School of Information and Electronics

Beijing University of Posts and Telecommunications

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

3 Citations (Scopus)

Abstract

A probabilistic shaping 16 quadrature amplitude modulation (PS-16QAM) scheme based on trellis-coded modulation (TCM) is proposed to provide an approach for improving TCM performance. With nonuniform probabilistic mapping of a subset of TCM-16QAM, the effective and favorable overall 16QAM constellation probability distribution is achieved. A 25-km standard single-mode fiber data transmission employing the proposed TCM-based PS-16QAM (TCM-PS-16QAM) is successfully demonstrated. Experimental results show that the proposed TCM-PS-16QAM-4 state (H = 2.9 bits/symbol) outperforms the traditional TCM-16QAM-n state (n = 4, 8, and 16) by 0.9, 0.5, and 0.1 dB in terms of optical signal-to-noise ratio (OSNR). TCM-PS-16QAM-4 state (H = 2.7 bits/symbol) exceeds TCM-PS-16QAM-4 state (H = 2.8 and 2.9 bits/symbol) by 0.6 and 0.9 dB OSNR enhancement, respectively, at the bit error rate of 1 × 10-3 and the data rate of 60 Gb/s.

Original language	English
Article number	076109
Journal	Optical Engineering
Volume	59
Issue number	7
DOIs	https://doi.org/10.1117/1.OE.59.7.076109
Publication status	Published - 1 Jul 2020

Keywords

nonuniform probabilistic mapping subset
probabilistic shaping
short-reach optical communication
trellis-coded modulation

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10.1117/1.OE.59.7.076109

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@article{527ecc3e6acf4ad9b8212bb7601b0d95,

title = "Probabilistic shaping 16 quadrature amplitude modulation scheme based on trellis-coded modulation for short-reach optical communication",

abstract = "A probabilistic shaping 16 quadrature amplitude modulation (PS-16QAM) scheme based on trellis-coded modulation (TCM) is proposed to provide an approach for improving TCM performance. With nonuniform probabilistic mapping of a subset of TCM-16QAM, the effective and favorable overall 16QAM constellation probability distribution is achieved. A 25-km standard single-mode fiber data transmission employing the proposed TCM-based PS-16QAM (TCM-PS-16QAM) is successfully demonstrated. Experimental results show that the proposed TCM-PS-16QAM-4 state (H = 2.9 bits/symbol) outperforms the traditional TCM-16QAM-n state (n = 4, 8, and 16) by 0.9, 0.5, and 0.1 dB in terms of optical signal-to-noise ratio (OSNR). TCM-PS-16QAM-4 state (H = 2.7 bits/symbol) exceeds TCM-PS-16QAM-4 state (H = 2.8 and 2.9 bits/symbol) by 0.6 and 0.9 dB OSNR enhancement, respectively, at the bit error rate of 1 × 10-3 and the data rate of 60 Gb/s.",

keywords = "nonuniform probabilistic mapping subset, probabilistic shaping, short-reach optical communication, trellis-coded modulation",

author = "Zongyu Zhang and Qi Zhang and Xishuo Wang and Xiangjun Xin and Ran Gao and Hongxin Zhang and Jianxin Ren and Xiangyu Wu and Xing Xu and Qinghua Tian and Feng Tian and Huan Chang",

note = "Publisher Copyright: {\textcopyright} 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).",

year = "2020",

month = jul,

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doi = "10.1117/1.OE.59.7.076109",

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T1 - Probabilistic shaping 16 quadrature amplitude modulation scheme based on trellis-coded modulation for short-reach optical communication

AU - Zhang, Zongyu

AU - Zhang, Qi

AU - Wang, Xishuo

AU - Xin, Xiangjun

AU - Gao, Ran

AU - Zhang, Hongxin

AU - Ren, Jianxin

AU - Wu, Xiangyu

AU - Xu, Xing

AU - Tian, Qinghua

AU - Tian, Feng

AU - Chang, Huan

PY - 2020/7/1

Y1 - 2020/7/1

N2 - A probabilistic shaping 16 quadrature amplitude modulation (PS-16QAM) scheme based on trellis-coded modulation (TCM) is proposed to provide an approach for improving TCM performance. With nonuniform probabilistic mapping of a subset of TCM-16QAM, the effective and favorable overall 16QAM constellation probability distribution is achieved. A 25-km standard single-mode fiber data transmission employing the proposed TCM-based PS-16QAM (TCM-PS-16QAM) is successfully demonstrated. Experimental results show that the proposed TCM-PS-16QAM-4 state (H = 2.9 bits/symbol) outperforms the traditional TCM-16QAM-n state (n = 4, 8, and 16) by 0.9, 0.5, and 0.1 dB in terms of optical signal-to-noise ratio (OSNR). TCM-PS-16QAM-4 state (H = 2.7 bits/symbol) exceeds TCM-PS-16QAM-4 state (H = 2.8 and 2.9 bits/symbol) by 0.6 and 0.9 dB OSNR enhancement, respectively, at the bit error rate of 1 × 10-3 and the data rate of 60 Gb/s.

AB - A probabilistic shaping 16 quadrature amplitude modulation (PS-16QAM) scheme based on trellis-coded modulation (TCM) is proposed to provide an approach for improving TCM performance. With nonuniform probabilistic mapping of a subset of TCM-16QAM, the effective and favorable overall 16QAM constellation probability distribution is achieved. A 25-km standard single-mode fiber data transmission employing the proposed TCM-based PS-16QAM (TCM-PS-16QAM) is successfully demonstrated. Experimental results show that the proposed TCM-PS-16QAM-4 state (H = 2.9 bits/symbol) outperforms the traditional TCM-16QAM-n state (n = 4, 8, and 16) by 0.9, 0.5, and 0.1 dB in terms of optical signal-to-noise ratio (OSNR). TCM-PS-16QAM-4 state (H = 2.7 bits/symbol) exceeds TCM-PS-16QAM-4 state (H = 2.8 and 2.9 bits/symbol) by 0.6 and 0.9 dB OSNR enhancement, respectively, at the bit error rate of 1 × 10-3 and the data rate of 60 Gb/s.

KW - nonuniform probabilistic mapping subset

KW - probabilistic shaping

KW - short-reach optical communication

KW - trellis-coded modulation

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ER -

Probabilistic shaping 16 quadrature amplitude modulation scheme based on trellis-coded modulation for short-reach optical communication

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