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Enhanced frequency-domain fractionally spaced equalization for coherent optical transmission system with colored noise

机译:具有色噪声的相干光传输系统的增强频域分数间隔均衡

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摘要

An enhanced minimum mean-square-error (MMSE) frequency-domain (FD) fractionally spaced equalizer (FSE) for polarization demultiplexing is proposed in the presence of colored noise. The 2-norm of the estimated channel matrix and polynomial fitting of equalization coefficients are introduced to mitigate the colored noise without requiring knowledge of the optical and electrical filtering. Simulation results show that ∼3-dB improvement of equalization performance is achieved compared to conventional MMSE FD-FSE in an 8×112-Gbit/s wavelength-division multiplexing polarization-division multiplexing-quadrature phase shift keying transmission system over a 1200-km single mode fiber link.
机译:在有色噪声的情况下,提出了一种增强的最小均方误差(MMSE)频域(FD)分数间隔均衡器(FSE),用于偏振解复用。引入了估计信道矩阵的2范数和均衡系数的多项式拟合,以减轻有色噪声,而无需了解光学和电气滤波。仿真结果表明,与传统的MMSE FD-FSE相比,在1200 km范围内的8×112 Gbit / s波分复用偏振分频复用正交相移键控传输系统中,均衡性能提高了约3dB。单模光纤链路。

著录项

  • 来源
    《Optical engineering》 |2017年第6期|066116.1-066116.6|共6页
  • 作者单位

    Southwest Jiaotong University, School of Information Science and Technology, Center for Information Photonics and Communications, Chengdu, China,Sichuan University of Science and Engineering, School of Automation and Information Engineering, Zigong, China;

    Southwest Jiaotong University, School of Information Science and Technology, Center for Information Photonics and Communications, Chengdu, China;

    Southwest Jiaotong University, School of Information Science and Technology, Center for Information Photonics and Communications, Chengdu, China;

    Southwest Jiaotong University, School of Information Science and Technology, Center for Information Photonics and Communications, Chengdu, China;

    Southwest Jiaotong University, School of Information Science and Technology, Center for Information Photonics and Communications, Chengdu, China;

    Southwest Jiaotong University, School of Information Science and Technology, Center for Information Photonics and Communications, Chengdu, China;

    Southwest Jiaotong University, School of Information Science and Technology, Center for Information Photonics and Communications, Chengdu, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Colored noise; Fiber optic communication; Frequency-domain equalization; Polynomial fitting;

    机译:有色噪音;光纤通讯;频域均衡;多项式拟合;

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