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Title

A New Non- Gaussian Performance Evaluation Method in Uncompensated Coherent Optical Transmission Systems

Year: 1398
COI: JR_JIST-7-3_003
Language: EnglishView: 218
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Authors

Seyed Sadra Kashef - Faculty of Electrical and Computer Engineering, Urmia University, Iran
Paeiz Azmi - Faculty of Electrical and Computer Engineering, Tarbiat Modares University, Iran

Abstract:

In this paper, the statistical distribution of the received quadrature amplitude modulation (QAM) signal components is analyzed after propagation in a dispersion uncompensated coherent optical fiber link. Two Gaussian tests, the Anderson-Darling and the Jarque-Bera have been used to measure the distance from the Gaussian distribution. By increasing the launch power, the received signal distribution starts to deviate from Gaussian. This deviation can have significant effects in system performance evaluation. The use of the Johnson S(u) distribution is proposed for the performance evaluation of orthogonal frequency division multiplexing in an uncompensated coherent optical system. Here, the Johnson S(u) is extended to predict the performance of multi-subcarrier and also single carrier systems with M-QAM signals. In particular, symbol error rate is derived based on the Johnson S(u) distribution and performance estimations are verified through accurate Monte-Carlo simulations based on the split-step Fourier method. In addition, a new formulation for the calculation of signal to noise ratio is presented, which is more accurate than those proposed in the literature. In the linear region, the Johnson based estimations are the same as Gaussian; however, in the nonlinear region, Johnson distribution power prediction is more accurate than the one obtained using the Gaussian approximation, which is verified by the numerical results.

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Paper COI Code

This Paper COI Code is JR_JIST-7-3_003. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1142418/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Kashef, Seyed Sadra and Azmi, Paeiz,1398,A New Non- Gaussian Performance Evaluation Method in Uncompensated Coherent Optical Transmission Systems,https://civilica.com/doc/1142418

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Type of center: دانشگاه دولتی
Paper count: 12,708
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