A Gray code mapping scheme for CAP probabilistically shaped 9QAM in an IM/DD system

Kai Lv; Qi Zhang; Xishuo Wang; Qinghua Tian; Feng Tian; Yongjun Wang; Xiangjun Xin; Xiaolong Pan

doi:10.1016/j.optcom.2018.12.042

A Gray code mapping scheme for CAP probabilistically shaped 9QAM in an IM/DD system

Kai Lv, Qi Zhang, Xishuo Wang, Qinghua Tian, Feng Tian, Yongjun Wang, Xiangjun Xin, Xiaolong Pan^*

^*此作品的通讯作者

Beijing University of Posts and Telecommunications

科研成果: 期刊稿件 › 文章 › 同行评审

3 引用（Scopus）

摘要

A Gray code mapping scheme is proposed to reduce coding penalty for probabilistically shaped 9QAM. The carrierless amplitude and phase modulation (CAP) probabilistically shaped 9QAM with the Gray code mapping scheme is experimentally investigated in a single carrier intensity modulation/direct detection (IM/DD) transmission system. The experiment results show that the proposed 9QAM with Gray coding has a gain of 0.034 bits/symbol and 0.111 bits/symbol over 9QAM without Gray coding and star-8QAM at a received optical power of -5.5 dBm, respectively. All of the three modulation formats have the same spectral efficiency (SE) equal to 3 bits/symbol.

源语言	英语
页（从-至）	174-177
页数	4
期刊	Optics Communications
卷	437
DOI	https://doi.org/10.1016/j.optcom.2018.12.042
出版状态	已出版 - 15 4月 2019
已对外发布	是

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title = "A Gray code mapping scheme for CAP probabilistically shaped 9QAM in an IM/DD system",

abstract = "A Gray code mapping scheme is proposed to reduce coding penalty for probabilistically shaped 9QAM. The carrierless amplitude and phase modulation (CAP) probabilistically shaped 9QAM with the Gray code mapping scheme is experimentally investigated in a single carrier intensity modulation/direct detection (IM/DD) transmission system. The experiment results show that the proposed 9QAM with Gray coding has a gain of 0.034 bits/symbol and 0.111 bits/symbol over 9QAM without Gray coding and star-8QAM at a received optical power of -5.5 dBm, respectively. All of the three modulation formats have the same spectral efficiency (SE) equal to 3 bits/symbol.",

keywords = "Carrierless amplitude and phase modulation, Gray code mapping, Intensity modulation/direct detection, Probabilistically shaped 9QAM",

author = "Kai Lv and Qi Zhang and Xishuo Wang and Qinghua Tian and Feng Tian and Yongjun Wang and Xiangjun Xin and Xiaolong Pan",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

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day = "15",

doi = "10.1016/j.optcom.2018.12.042",

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T1 - A Gray code mapping scheme for CAP probabilistically shaped 9QAM in an IM/DD system

AU - Lv, Kai

AU - Zhang, Qi

AU - Wang, Xishuo

AU - Tian, Qinghua

AU - Tian, Feng

AU - Wang, Yongjun

AU - Xin, Xiangjun

AU - Pan, Xiaolong

PY - 2019/4/15

Y1 - 2019/4/15

N2 - A Gray code mapping scheme is proposed to reduce coding penalty for probabilistically shaped 9QAM. The carrierless amplitude and phase modulation (CAP) probabilistically shaped 9QAM with the Gray code mapping scheme is experimentally investigated in a single carrier intensity modulation/direct detection (IM/DD) transmission system. The experiment results show that the proposed 9QAM with Gray coding has a gain of 0.034 bits/symbol and 0.111 bits/symbol over 9QAM without Gray coding and star-8QAM at a received optical power of -5.5 dBm, respectively. All of the three modulation formats have the same spectral efficiency (SE) equal to 3 bits/symbol.

AB - A Gray code mapping scheme is proposed to reduce coding penalty for probabilistically shaped 9QAM. The carrierless amplitude and phase modulation (CAP) probabilistically shaped 9QAM with the Gray code mapping scheme is experimentally investigated in a single carrier intensity modulation/direct detection (IM/DD) transmission system. The experiment results show that the proposed 9QAM with Gray coding has a gain of 0.034 bits/symbol and 0.111 bits/symbol over 9QAM without Gray coding and star-8QAM at a received optical power of -5.5 dBm, respectively. All of the three modulation formats have the same spectral efficiency (SE) equal to 3 bits/symbol.

KW - Carrierless amplitude and phase modulation

KW - Gray code mapping

KW - Intensity modulation/direct detection

KW - Probabilistically shaped 9QAM

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DO - 10.1016/j.optcom.2018.12.042

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VL - 437

SP - 174

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JO - Optics Communications

JF - Optics Communications

ER -

A Gray code mapping scheme for CAP probabilistically shaped 9QAM in an IM/DD system

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