Improved Performance of high-order QAM OFDM Based on Probabilistically Shaping in the Datacom

Improved Performance of high-order QAM OFDM Based on Probabilistically Shaping in the Datacom
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DOI：
10.1364/ofc.2018.w4g.6
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发表时间：
2018-03
期刊：
2018 Optical Fiber Communications Conference and Exposition (OFC)
影响因子：
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通讯作者：
Jianyang Shi;Junwen Zhang;Xinying Li;N. Chi;Yun Zhang;Qi Zhang;Jianjun Yu
Jianyang Shi;Junwen Zhang;Xinying Li;N. Chi;Yun Zhang;Qi Zhang;Jianjun Yu
中科院分区：
其他
文献类型：
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作者：
Jianyang Shi;Junwen Zhang;Xinying Li;N. Chi;Yun Zhang;Qi Zhang;Jianjun Yu

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我们通过实验演示了低成本 IM-DD 系统中的 PS-256-QAM OFDM 光纤传输。与统一的128-QAM相比，所提出的PS-256-QAM获得了相同的7比特/QAM符号的熵，但可实现更高的信息速率性能和更强的非线性鲁棒性。
We experimentally demonstrated a PS-256-QAM OFDM fiber transmission in a low-cost IM-DD system. Compared with uniform 128-QAM, the proposed PS-256-QAM obtains the same entropy of 7 bits/QAM symbol, but higher achievable-information-rate performance and stronger nonlinearity robustness.