Flexible Transmission Enabled by Novel M2-QAM Formats with Record Distance - Spectral Efficiency Tuneability
11 March 2018
We propose a variable M2-QAM format and coding scheme and demonstrate record distance â" spectral efficiency tuneability by 6.4 bit/s/Hz and Î"Lâ18x, respectively, at 400 and 600 Gb/s per carrier and report record terrestrial reach for high spectral efficient up to 256QAM.