Equalization apparatus, optical transmission system, and equalization method
AssigneeNEC Corporation
InventorsMingqi WU, Kazushi MURAOKA
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Abstract
A penalty is introduced to the channel with less noise when the difference in the transmitted signal quality among channels is reduced; therefore, an equalization apparatus according to an exemplary aspect of the disclosure includes a processing means for performing a process associated with a signal using a transfer function with a coefficient, the signal propagating through each of a plurality of channels; and a coefficient generating means for generating the coefficient based on channel quality information on each of the plurality of channels.
Claims20
An equalization apparatus, comprising:
- a processing unit configured to perform a process associated with a signal using a transfer function with a coefficient, the signal propagating through each of a plurality of channels;
- and
- at least one memory configured to store instructions;
- and at least one processor configured to execute the instructions to generate the coefficient based on channel quality information on each of the plurality of channels.
An optical transmission system, comprising:
- a transmitting processing unit configured to receive input of data to be transmitted through a plurality of channels, and converting the data into a signal using a first transfer matrix with a coefficient in such a way as to give more signal power to a channel with lower channel quality;
- a receiving processing unit configured to receive input of the signal after propagating through the plurality of channels, and restoring the signal after the propagating to the data using a second transfer matrix that is an inverse matrix of the first transfer matrix;
- and
- at least one memory configured to store instructions;
- and at least one processor configured to execute the instructions to generate the coefficient based on channel quality information on each of the plurality of channels.
An equalization method, comprising:
- performing a process associated with a signal using a transfer function with a coefficient, the signal propagating through each of a plurality of channels;
- and
- generating the coefficient based on channel quality information on each of the plurality of channels.
Dependencies are inferred from the claim text.