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Chin. Opt. Lett.
 Home  List of Issues    Issue 04 , Vol. 16 , 2018    10.3788/COL201816.040604


SER estimation method for 56 GBaud PAM-4 transmission system
Aadil Raza1, Kangping Zhong2, Salman Ghafoor3, Saeed Iqbal1, Muhammad Adeel2, Shahid Habib1, Muhammad Fasih Uddin Butt1, and Chao Lu2
1 [COMSATS Institute of Information Technology (CIIT)], Islamabad, Pakistan
2 Department of Electronic and Information Engineering, [The Hong Kong Polytechnic University], Hong Kong, China
3 [National University of Sciences and Technology (NUST)], Islamabad, Pakistan

Chin. Opt. Lett., 2018, 16(04): pp.040604

DOI:10.3788/COL201816.040604
Topic:Fiber optics and optical communication
Keywords(OCIS Code): 060.4510  060.2330  

Abstract
In this Letter, we have proposed a generalized Gaussian probability density function (GGPDF)-based method to estimate the symbol error ratio (SER) for pulse amplitude modulation (PAM-4) in an intensity modulation/direct detection (IM/DD) system. Furthermore, a closed form expression of SERGGD for PAM-4 has been derived. The performance of the proposed method is evaluated through simulation as well as experimental work. The fitting of probability density functions of the received signal is applied via GGPDF and shape parameters P1 and P2 associated with different PAM-4 levels are determined. The optimum single value of shape parameter P is then calculated to estimate the SER. The mathematical relationship of P with different received optical powers and receiver bandwidths has been determined and verified. The proposed method is a fast and accurate method to estimate SER of a PAM-4 system, which is more reliable and in agreement with the error counting method.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2018/2/6
Accepted:2018/2/9
Posted online:2018/3/26

Get Citation: Aadil Raza, Kangping Zhong, Salman Ghafoor, Saeed Iqbal, Muhammad Adeel, Shahid Habib, Muhammad Fasih Uddin Butt, and Chao Lu, "SER estimation method for 56 GBaud PAM-4 transmission system," Chin. Opt. Lett. 16(04), 040604(2018)

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