Carrier-less amplitude-phase geometric probabilistic hybrid shaping 16QAM scheme applied to data center networks

Xia Sheng; Qi Zhang; Xiangjun Xin; Xishuo Wang; Qinghua Tian; Lijia Zhang; Ying Tao; Naijin Liu; Feng Tian; Xiaolong Pan; Bo Zhang

doi:10.1117/1.OE.58.8.086105

Carrier-less amplitude-phase geometric probabilistic hybrid shaping 16QAM scheme applied to data center networks

Xia Sheng, Qi Zhang^*, Xiangjun Xin, Xishuo Wang, Qinghua Tian, Lijia Zhang, Ying Tao, Naijin Liu, Feng Tian, Xiaolong Pan, Bo Zhang

^*Corresponding author for this work

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

Abstract

A hybrid shaping scheme, carrier-less amplitude and phase modulation geometric-probabilistic hybrid shaping 16QAM (CAP-GPS-16QAM), is proposed for data center networks. The probabilistic shaping is achieved by applying the proposed probabilistic subset shaping to the constellation after geometric shaping (GS). An intensity modulation/direct detection experimental system of 5 GBaud is built to verify the proposal. The results show that the gains of the proposed scheme are 2.4, 2.6, and 3 dB compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively, at BER = 10^-3. Meanwhile, in terms of generalized mutual information, the proposal improves the performance by 0.078, 0.125, and 0.153 bits/symbol compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively.

Original language	English
Article number	086105
Journal	Optical Engineering
Volume	58
Issue number	8
DOIs	https://doi.org/10.1117/1.OE.58.8.086105
Publication status	Published - 1 Aug 2019
Externally published	Yes

Keywords

carrier-less amplitude and phase modulation
intensity modulation/direct detection
probabilistic subset shaping

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10.1117/1.OE.58.8.086105

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@article{4be562f094da4a09bcc9d8b90e81c969,

title = "Carrier-less amplitude-phase geometric probabilistic hybrid shaping 16QAM scheme applied to data center networks",

abstract = "A hybrid shaping scheme, carrier-less amplitude and phase modulation geometric-probabilistic hybrid shaping 16QAM (CAP-GPS-16QAM), is proposed for data center networks. The probabilistic shaping is achieved by applying the proposed probabilistic subset shaping to the constellation after geometric shaping (GS). An intensity modulation/direct detection experimental system of 5 GBaud is built to verify the proposal. The results show that the gains of the proposed scheme are 2.4, 2.6, and 3 dB compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively, at BER = 10-3. Meanwhile, in terms of generalized mutual information, the proposal improves the performance by 0.078, 0.125, and 0.153 bits/symbol compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively.",

keywords = "carrier-less amplitude and phase modulation, intensity modulation/direct detection, probabilistic subset shaping",

author = "Xia Sheng and Qi Zhang and Xiangjun Xin and Xishuo Wang and Qinghua Tian and Lijia Zhang and Ying Tao and Naijin Liu and Feng Tian and Xiaolong Pan and Bo Zhang",

note = "Publisher Copyright: {\textcopyright} 2019 Society of Photo-Optical Instrumentation Engineers (SPIE).",

year = "2019",

month = aug,

day = "1",

doi = "10.1117/1.OE.58.8.086105",

language = "English",

volume = "58",

journal = "Optical Engineering",

issn = "0091-3286",

publisher = "SPIE",

number = "8",

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TY - JOUR

T1 - Carrier-less amplitude-phase geometric probabilistic hybrid shaping 16QAM scheme applied to data center networks

AU - Sheng, Xia

AU - Zhang, Qi

AU - Xin, Xiangjun

AU - Wang, Xishuo

AU - Tian, Qinghua

AU - Zhang, Lijia

AU - Tao, Ying

AU - Liu, Naijin

AU - Tian, Feng

AU - Pan, Xiaolong

AU - Zhang, Bo

PY - 2019/8/1

Y1 - 2019/8/1

N2 - A hybrid shaping scheme, carrier-less amplitude and phase modulation geometric-probabilistic hybrid shaping 16QAM (CAP-GPS-16QAM), is proposed for data center networks. The probabilistic shaping is achieved by applying the proposed probabilistic subset shaping to the constellation after geometric shaping (GS). An intensity modulation/direct detection experimental system of 5 GBaud is built to verify the proposal. The results show that the gains of the proposed scheme are 2.4, 2.6, and 3 dB compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively, at BER = 10-3. Meanwhile, in terms of generalized mutual information, the proposal improves the performance by 0.078, 0.125, and 0.153 bits/symbol compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively.

AB - A hybrid shaping scheme, carrier-less amplitude and phase modulation geometric-probabilistic hybrid shaping 16QAM (CAP-GPS-16QAM), is proposed for data center networks. The probabilistic shaping is achieved by applying the proposed probabilistic subset shaping to the constellation after geometric shaping (GS). An intensity modulation/direct detection experimental system of 5 GBaud is built to verify the proposal. The results show that the gains of the proposed scheme are 2.4, 2.6, and 3 dB compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively, at BER = 10-3. Meanwhile, in terms of generalized mutual information, the proposal improves the performance by 0.078, 0.125, and 0.153 bits/symbol compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively.

KW - carrier-less amplitude and phase modulation

KW - intensity modulation/direct detection

KW - probabilistic subset shaping

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U2 - 10.1117/1.OE.58.8.086105

DO - 10.1117/1.OE.58.8.086105

M3 - Article

AN - SCOPUS:85072405088

SN - 0091-3286

VL - 58

JO - Optical Engineering

JF - Optical Engineering

IS - 8

M1 - 086105

ER -

Carrier-less amplitude-phase geometric probabilistic hybrid shaping 16QAM scheme applied to data center networks

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Keywords

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