Digital inverse multiplexing-based pre-distortion for analog multiplexed broadband transmitter

We proposed a method of digital pre-distortion scheme for transmitters with electrically analogmultiplexed digital-to-analog converters (DACs), based on a digital inverse multiplexing model. We performed 132 Gbaud PCS-64QAM signal generation and detection with an > 3.7-dB signal-to-noise ratio and > 180 Gb/s net bitrate improvement.