Bit-Interleaved Coded Modulation using Set Partitioned 4-D Multidimensional for Optical Commmunications

Abstract

In this paper, we proposed a novel Bit-Interleaved LDPC Coded Modulation scheme for long-haul coherent optical link at 50/80/100 km using the method called Set Partitioned (SP) to generate 4-D Multidimensional Modulations with 3 subcarriers in order to transmit at 4096 SP-QAM and 8192 SP-QAM rectangular and cross constellations-points respectively. The results show that the Spectral Efficiency (SE) is reduced at 2 bit/sym/Hz and improve the BER performance system around 10dB in terms of OSNR with respect to traditional techniques of modulations.