Increased dimensionality of SP-MQAM modulation higher than 4D to 8D
Increased dimensionality of SP-MQAM modulation higher than 4D to 8D
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SP-MQAM 调制的维数增加，高于 4D 至 8D
DOI：
10.1016/j.optcom.2017.03.029
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发表时间：
2017-08
影响因子：
2.4
通讯作者：
Zhengxun Song
中科院分区：
文献类型：
--
作者：
EnockLewa Kashero;Guijun Hu;Zhengxun Song
在这封信中，我们介绍了两种用于相干光通信的八维集分割mQAM(SP-8D-QAM)调制格式SP-8D-16QAM和SP-8D-32QAM，重点介绍了它们的频谱效率(SE)分别提高到3.75b/S/Hz/POL和4.75Gb/S/Hz/POL。比较了SP-8D-QAM调制格式与PM-16QAM、PM-32QAM、128ary SP-QAM和512ary SP-QAM的频谱效率和渐近功率效率。为了实现八维化，我们将时间作为正交通道添加到极化X和Y、同相I和正交Q以用于信号映射。仿真结果表明，SP-8D-16QAM和SP-8D-32QAM的性能分别介于128ary SP-QAM和PM-16QAM和512ary SP-QAM和PM-32QAM之间。
In this letter we introduce two eight dimensional set partition mQAM (SP-8D-QAM) modulation formats for coherent optical communication as SP-8D-16QAM and SP-8D-32QAM, focusing on their improved spectral efficiency (SE) of up to 3.75 and 4.75 b/s/Hz/pol respectively. We compared the SP-8D-QAM modulation formats to PM-16QAM, PM-32QAM, 128ary SP-QAM and 512ary SP-QAM, and showed the trade-off between their spectral efficiency and asymptotic power efficiency. To achieve the eight dimensionality, we added time as orthogonal channels to both polarization X and Y, in-phase I and quadrature Q for signals mapping. The simulation results show that both SP-8D-16QAM and SP-8D-32QAM give an intermediate performance compromise between 128ary SP-QAM and PM-16QAM and between 512ary SP-QAM and PM-32QAM respectively.
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影响因子：
4.7
作者：
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通讯作者：
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DOI：
10.1049/cp.2013.1368
发表时间：
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期刊：
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影响因子：
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DOI：
10.1364/ecoc.2011.mo.2.b.4
发表时间：
2011-09
期刊：
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影响因子：
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