Modified constant modulus algorithm based on constellation matching error with variable weight

Hongchao Guo, Feng Tian, Lijia Zhang, Qi Zhang, Qinghua Tian, Yongjun Wang, Xiangjun Xin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

In this paper, we propose a modified constant modulus algorithm based on constellation matching error with variable weight (VW-CME-MCMA) for polarization-mode dispersion (PMD) equalization in coherent optical communication system. The new algorithm added a constellation matching error (CME) term to the cost function of the traditional modified constant modulus algorithm (MCMA), considering that the CME term does not provide correct error information in the early stage of algorithmic equalization. In this case, the CME is equivalent to the noise role. Therefore, the new algorithm adaptively adjusts the weight of the CME term according to the error value of the current equalizer output signal. Through the analysis of simulation results, the new algorithm proposed in this paper can achieve faster convergence speed and lower steady-state error.

Original languageEnglish
Title of host publicationTenth International Conference on Information Optics and Photonics
EditorsYidong Huang
PublisherSPIE
ISBN (Electronic)9781510625792
DOIs
Publication statusPublished - 2018
Externally publishedYes
Event10th International Conference on Information Optics and Photonics - Beijing, China
Duration: 8 Jul 201811 Jul 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10964
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference10th International Conference on Information Optics and Photonics
Country/TerritoryChina
CityBeijing
Period8/07/1811/07/18

Keywords

  • CME
  • Coherent optical communication
  • PMD equalization
  • algorithm
  • variable weight

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Cite this

Guo, H., Tian, F., Zhang, L., Zhang, Q., Tian, Q., Wang, Y., & Xin, X. (2018). Modified constant modulus algorithm based on constellation matching error with variable weight. In Y. Huang (Ed.), Tenth International Conference on Information Optics and Photonics Article 109643N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10964). SPIE. https://doi.org/10.1117/12.2505959