| 摘要 |
<p>Disclosed is a DMT (discrete multi-tone) system including a first ONU (optical network unit) receiver connected to a first transmission line from a remote site transmitter, and a second ONU receiver connected to a second transmission line, for receiving data signals to which FEXT (far and crosstalk) from the first transmission line is combined. The first ONU receiver comprises: a first equalizer for compensating transmission line attenuation in the data signals received through the first transmission line; and a first slicer for performing decision-making on the output of the first equalizer to find a decision value, and the second ONU receiver comprises: a second equalizer for using a tap coefficient to compensate transmission line attenuation in the data signals to which the FEXT is combined; and an FEXT canceller for using a tap coefficient of the FEXT canceller and a decision value of the first ONU receiver to calculate the influence caused by the FEXT.</p> |
