Nonlinear impairment compensation using expectation maximization for PDM 16-QAM systems

@article{Zibar2012NonlinearIC,
  title={Nonlinear impairment compensation using expectation maximization for PDM 16-QAM systems},
  author={Darko Zibar and Ole Winther and Niccolo Franceschi and Robert Borkowski and Antonio Caballero and Valeria Arlunno and Mikkel N. Schmidt and Neil Guerrero Gonzales and Bangning Mao and Knud J. Larsen and Idelfonso Tafur Monroy},
  journal={2012 38th European Conference and Exhibition on Optical Communications},
  year={2012},
  pages={1-3}
}
We show experimentally that by using non-linear signal processing based algorithm, expectation maximization, nonlinear system tolerance can be increased by 2 dB. Expectation maximization is also effective in combating I/Q modulator nonlinearities and laser linewidth. 

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