Low complexity digital backpropagation for high baud subcarrier-multiplexing systems.


In this paper, we propose two modifications to reduce the complexity of the subcarrier-multiplexing (SCM) based digital backpropagation (DBP) for high symbol rate SCM systems. The first one is to reduce the number of interfering subcarriers (RS-SCM-DBP) when evaluating the cross-subcarrier nonlinearity (CSN). The second one is to replace the original… (More)
DOI: 10.1364/OE.24.017027


10 Figures and Tables