120-GBaud coded 8 dimensional 16QAM WDM transmission using low-complexity iterative decoding based on bit-wise log likelihood ratio

摘要

We propose a low-complexity decoding scheme that is 8.68e-4 times that of conventional optimal decoding for 8D-16QAM. Experiments confirm that the proposed scheme allows 9-WDM 600-Gbps/ch transmission over 3,500km without penalty.