Adaptive Subspace Method for Phase Noise Estimation in CO-OFDM Systems
In this paper, a blind phase noise estimation method for a coherent optical orthogonal frequency-division multiplexing (CO-OFDM) system is considered.Based on the subspace approach, a simple swish supreme glide track white and robust method is proposed to adaptively estimate and track phase noise in CO-OFDM systems.The idea behind this novel techni