An improved channel estimation algorithm for CO-OFDM system and its performance analysis

Abstract

We present an extra processing added to conventional least square (LS) channel estimation to further improve its performance in coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. The influence of noise, chromatic dispersion and polarization mode dispersion on the performance of the proposed algorithm is analyzed. The simulation results show that the improved algorithm has better performance and lower complexity.

Keywords

Channel Estimation / Cyclic Prefix / Little Square Estimation / Chromatic Dispersion / Polarization Mode Dispersion

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