Adaptive modulation 1 Adaptive modulation scheme 1 Adaptive systems 1 CompactDAQ 1 Compactdaq 1 Computer programming languages 1 LabVIEW 1 Orthogonal frequency division multiplexing 1 Orthogonal frequency-division multiplexing 1 Performance 1 Real- time 1 Signal to noise ratio 1 Time varying channel 1 Time varying networks 1 Underwater acoustic channels 1 Underwater acoustic communication 1 Underwater acoustic communication system 1 adaptive modulation 1 orthogonal frequency-division multiplexing (OFDM) 1 time-varying channel underwater acoustic communication 1