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Proceedings Paper

Modified constant modulus algorithm based on constellation matching error with variable weight
Author(s): Hongchao Guo; Feng Tian; Lijia Zhang; Qi Zhang; Qinghua Tian; Yongjun Wang; Xiangjun Xin
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Paper 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.

Paper Details

Date Published: 15 November 2018
PDF: 5 pages
Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109643N (15 November 2018); doi: 10.1117/12.2505959
Show Author Affiliations
Hongchao Guo, Beijing Univ. of Posts and Telecommunications (China)
Feng Tian, Beijing Univ. of Posts and Telecommunications (China)
Lijia Zhang, Beijing Univ. of Posts and Telecommunications (China)
Qi Zhang, Beijing Univ. of Posts and Telecommunications (China)
Qinghua Tian, Beijing Univ. of Posts and Telecommunications (China)
Yongjun Wang, Beijing Univ. of Posts and Telecommunications (China)
Xiangjun Xin, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 10964:
Tenth International Conference on Information Optics and Photonics
Yidong Huang, Editor(s)

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