Proposal and performance analysis on the PDM microwave photonic link for the mm-wave signal with hybrid QAM-MPPM-RZ modulation
Proposal and performance analysis on the PDM microwave photonic link for the mm-wave signal with hybrid QAM-MPPM-RZ modulation
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混合 QAM-MPPM-RZ 调制毫米波信号 PDM 微波光子链路的方案和性能分析
DOI：
10.1016/j.optcom.2018.03.004
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发表时间：
2018-07
影响因子：
2.4
通讯作者：
Pan Xiaolong
中科院分区：
文献类型：
--
作者：
Tian Bo;Zhang Qi;Ma Jianxin;Tao Ying;Shen Yufei;Wang Yang;Zhang Geng;Zhou Wenmao;Zhao Yi;Pan Xiaolong
针对毫米波信号，提出了一种基于正交幅度调制、多脉冲位置调制和归零调制(QAM-MPPM-RZ)相结合的混合调制方式的偏振分复用微波光子链路。在该方案中，两个正交偏振态可以同时传输四个数据流，可以根据数据速率要求为用户提供不同的服务。为了产生QAM-MPPM-RZ混合毫米波信号，QAM毫米波信号直接由MPPM-RZ信号调制，而不需要使用数字信号处理(DSP)器件，从而减少了编码过程的开销。然后，将产生的QAM-MPPM-RZ毫米波信号在基于单边带调制的PDM微波光链路中传输。QAM-MPPM-RZ的稀疏特性不仅提高了功率效率，而且减少了光纤色散引起的劣化。仿真结果表明，在相同传输速率的约束下，采用50 GHz QAM-MPPM-RZ毫米波信号的PDM微波光链路的误码率比普通的32-QAM要低得多。此外，激光线宽的增加对所提出的方案没有额外的影响。
A polarization division multiplexed (PDM) microwave photonic link for the millimeter (MM)-wave signal with hybrid modulation scheme is proposed in this paper, which is based on the combination of quadrature amplitude modulation, multi-pulse pulse-position modulation and return to zero modulation (QAM-MPPM-RZ). In this scheme, the two orthogonal polarization states enable simultaneous transmission of four data flows, which can provide different services for users according to the data rate requirement. To generate hybrid QAM-MPPM-RZ mm-wave signal, the QAM mm-wave signal is directly modulated by MPPM-RZ signal without using digital signal processing (DSP) devices, which reduces the overhead of the encoding process. Then, the generated QAM-MPPM-RZ mm-wave signal is transmitted in PDM microwave photonic link based on SSB modulation. The sparsity characteristic of QAM-MPPM-RZ not only improves the power efficiency, but also decreases the degradation caused by the fiber chromatic dispersion. The simulation results show that, under the constraint of the same transmitted data rate, the PDM microwave photonic link with 50 GHz QAM-MPPM-RZ mm-wave signal achieves much lower levels of bit-error rate than ordinary 32-QAM. In addition, the increase of laser linewidth brings no additional impact to the proposed scheme.
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影响因子：
4.7
作者：
Xinying Li;Jiangnan Xiao;Jianjun Yu
通讯作者：
Xinying Li;Jiangnan Xiao;Jianjun Yu
影响因子：
1.7
作者：
Xin Xiangjun;Ma Jianxin;Zhang Qi;Deng Chaogong;Wang Kuiru;Yu Chongxiu;Liu Bo
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影响因子：
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DOI：
10.1016/j.osn.2015.08.002
发表时间：
2015-11
期刊：
Opt. Switch. Netw.
影响因子：
--
作者：
Ruijiao Zhang;Jianxin Ma;Wen Liu;Wei Zhou-;Yang Yang-Yang
通讯作者：
Ruijiao Zhang;Jianxin Ma;Wen Liu;Wei Zhou-;Yang Yang-Yang
影响因子：
3.6
作者：
Bo Liu;Lijia Zhang;X. Xin;Lei Liu
通讯作者：
Bo Liu;Lijia Zhang;X. Xin;Lei Liu