9.5. Computation of Spectral Compatibility
To compute the resulting SNR margin, we first need to compute the resulting output signal-to-noise ratio (SNRout) and then take the difference from the reference SNR value (SNRref) that corresponds to a bit error rate (BER) of 10-7. Table 9.2 lists the SNRref values [8] for the uncoded signal constellations considered in this study. To include the gain effects of the trellis code, the coding gain is subtracted from the uncoded signal's SNRref.
The output signal-to-noise ratio (SNRout) of the decision feedback equalizer in the CAP/QAM receiver is computed by [8]
The output signal-to-noise ratio of the ...
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