81.7% Complexity Reduction of Volterra Nonlinear Equalizer by Adopting L1 Regularization Penalty in an OFDM Long-Reach PON
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Abstract
We successfully reduce 81.7% complexity of 3rd-order Volterra nonlinear equalizer and the data rate has only 2% reduction by adopting the L1 regularization penalty in a 60-km OFDM long-reach PON.