CPC H04L 1/0057 (2013.01) [H03M 13/19 (2013.01); H03M 13/251 (2013.01); H03M 13/2906 (2013.01); H04L 1/0041 (2013.01); H04L 1/0059 (2013.01); H04L 1/0064 (2013.01); H04L 1/0071 (2013.01); H04L 1/0058 (2013.01); H04L 1/0643 (2013.01); H04L 27/2627 (2013.01)] | 18 Claims |
1. An optical transmitter comprising:
a first encoder configured to encode data using a staircase code to generate first codewords;
a first interleaver configured to interleave the first codewords using convolutional interleaving to spread a transmission order of the first codewords, the convolutional interleaving comprising outputting blocks of a predetermined number of consecutive bits from the first codewords in a sequence that spreads burst errors across the first codewords generated using the staircase code;
a second encoder configured to encode the interleaved first codewords using a second code to generate second codewords;
a mapper configured to map the second codewords to transmit symbols;
a second interleaver configured to interleave the transmit symbols to distribute the transmit symbols between pilot symbols; and
a frame generator configured to generate a transmit frame including the interleaved transmit symbols and the pilot symbols,
wherein the optical transmitter is configured to transmit the generated transmit frame to a receiver over a communication channel.
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