Distribution Matching for High Spectral Efficiency Optical Communication with Multiset Partitions

In this paper, we review the concept of multisetpartition based distribution matching (MPDM). We then characterize performance over short block lengths of 20, 40 and 80 symbols, and with 16QAM, 64QAM and 56QAM modulation formats. We note that a 40 symbol distribution matcher length can obtain better than uniform performance, while an 80 symbol distribution matcher can utilize most of the available gain over a wide range of signal-to-noise ratios.