Abstract
We propose a multi-tap independent component analysis (ICA) scheme for
blind equalization and phase recovery in coherent optical communication systems.
The proposed algorithm is described and evaluated in the cases of QPSK and
16-QAM transmission. Comparison with CMA equalization shows similar performance
in the case of QPSK and an advantage for the ICA equalizer in the case of
16-QAM. The equalization scheme was evaluated in a multi-span optical communications
system impaired by both polarization mode dispersion (PMD) and polarization
dependent loss (PDL).
© 2013 IEEE
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