Hi Sam Sung, Thank you for introducing this interesting paper. However, we are discussing a specific case here. Lalit would like to know why I suggested a longer bit sequence and that if the reason for getting more acceptable results after lengthening the sequence can be interpreted as better system performance, and I proposed what Damian had formerly suggested in a few similar occasions. Neither lengthening the sequence would take up so much time and memory in here nor any hybrid optical amplifier has been used in his system. It’s a practical question rather than theoretical from Lalit, which is asked about a specific case discussed above. I suggest that you go through the whole discussion about the issue to avoid confusing it with the idea in the paper.
Regards