Equalization Methods for NLIN Mitigation

Ori Golani; Meir Feder; Mark Shtaif

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arXiv · 1710.00625

Equalization Methods for NLIN Mitigation

Ori Golani·Meir Feder·Mark Shtaif

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Abstract

We investigate the potential of adaptive equalization techniques to mitigate inter-channel nonlinear interference noise (NLIN). We derive a lower bound on the mutual information of a system using adaptive equalization, showing that the channel estimation error determines the equalizer's performance. We develop an adaptive equalization scheme which uses the statistics of the NLIN to obtain optimal detection, based on Kalman filtering and maximum likelihood sequence estimation (MLSE). This scheme outperforms commonly used equalizers and significantly increases performance.

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Ori Golani, Meir Feder, Mark Shtaif. 2017-08-22. Equalization Methods for NLIN Mitigation. https://arxiv.org/abs/1710.00625

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