Farah Arabian, Willie K. Harrison, Chad Josephson, M. Rice, E. Perrins
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On Peak-to-Average Power Ratio Optimization for Coded APSK
The symmetric information rate is used to define the relationship between the APSK constellation parameters, the code rate, and the average and peak Eb/N0. Minimizing the average Eb/N0 reproduces the DVB-S2 constellation parameters for 16- and 32-APSK. Minimizing the peak Eb/N0produces DVB-S2 constellation parameters for 16- and 32-APSK that minimize the peak-to-average power ratio. The peak-to-average power ratio gains are less than 1 dB, but when used on coded systems with very steep decoded bit error probability vs. Eb/N0 curves, the gains can be significant.
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