Patent ID: 9252988
Filing Date: 2016-02-02
CPC Classification: H04B,H04J,H04L

Claim Text:
1. A method comprising: receiving, by a processor, a carrier wave comprising a first polarization state and a second polarization state, wherein a correlation exists between the first polarization state and the second polarization state; generating a first constellation and a second constellation by demultiplexing the first polarization state and the second polarization state, wherein the first constellation corresponds to the first polarization state and the second constellation corresponds to the second polarization state; calculating, by the processor, a first expected value based on the first polarization state and the first constellation and a second expected value based on the second polarization state and the second constellation; equalizing, by the processor, a first output based on a first signal associated with the first polarization state and a second output based on a second signal associated with the second polarization state; calculating, by the processor, a first error based on a difference between the first expected value and the first output, the first expected value being constrained based on the first output and the second output; calculating, by the processor, a second error based on a difference between the second expected value and the second output, the second expected value being constrained based on the first output and the second output; and generating, by the processor, a feedback signal based on the first error, the second error and the correlation.