Patent ID: 9219550
Filing Date: 2015-12-22
Classification: H04B,H04L

Abstract:
1. A method performed by a device, the method comprising: receiving, from an optical receiver, a signal derived from a first optical signal and a second optical signal generated by a local oscillator; filtering the signal by using a filter, set to a first configuration, to obtain a first recovered signal; performing forward error correction, on the first recovered signal, to obtain a first quantity of bit errors that corresponds to the first recovered signal; filtering the signal by using the filter, set to a second configuration, to obtain a second recovered signal; performing the forward error correction, on the second recovered signal, to obtain a second quantity of bit errors that corresponds to the second recovered signal; determining that the first quantity of bit errors is less than the second quantity of bit errors; and processing the signal by using the first configuration based on determining that the first quantity of bit errors is less than the second quantity of bit errors.