Systems and methods for time domain equalization enhanced phase noise (eepn) tracking and compensation

A method, comprising:

• generating, by a processing system including a processor, an error estimate based on information from a carrier phase recovery system that digitally recovers a carrier phase associated with a signal;
• deriving, by the processing system, filter coefficients based on the error estimate;
• and
• using, by the processing system, the filter coefficients to perform equalization enhanced phase noise (EEPN) compensation relating to the signal, wherein a correlation time of at least one of the filter coefficients is substantially equal to a relative delay associated with digital compensation of chromatic dispersion relating to the signal.

A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processing system of a device including a processor, facilitate performance of operations, the operations comprising:

• generating an error estimate based on information from a carrier phase recovery system that digitally recovers a carrier phase associated with a signal;
• deriving filter coefficients based on the error estimate;
• and
• using the filter coefficients to perform equalization enhanced phase noise (EEPN) compensation relating to the signal, wherein a correlation time of at least one of the filter coefficients is substantially equal to a relative delay associated with digital compensation of chromatic dispersion relating to the signal.