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Ah, yes. So I know of essentially 4 possibilities for addressing PAPR in OFDM, specifically:
There might also be some clever tricks you can play with adjusting the phase/amplitude of subcarriers with a P/N sequence, possibly conveyed over a side-channel, but this gets really customized and complicated really quickly. My first thought would be to extend the ofdmflexframe to include a fourth subcarrier allocation type for PAPR reduction, addressing 1, above. Thoughts? |
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I used liquid-dsp a few years ago to transfer low bitrate data between two custom HW and I remember high PAPR was killing me. It would be nice to add some PAPR mitigation technique for OFDM.
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