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Peak-to-average power reduction for OFDM by repeated clipping and frequency domain filtering

Peak-to-average power reduction for OFDM by repeated clipping and frequency domain filtering

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It is shown that repeated clipping and frequency domain filtering of an orthogonal frequency division multiplexing (OFDM) signal can significantly reduce the peak-to-average power ratio (PAPR) of the transmitted signal. The technique causes no increase in out-of-band power. Significant PAPR reduction can be achieved with only moderate levels of clipping noise.

References

    1. 1)
      • Panta, K., Armstrong, J.: `Use of peak-to-average power reduction technique in HIPERLAN2 and its performance in fading channel', 6th Int. Symp. on DSP for Communication Systems, January 2002, Sydney, Australia, accepted for publication.
    2. 2)
    3. 3)
      • Armstrong, J.: `New OFDM peak-to-average power reduction scheme', Proc. IEEE, VTC2001 Spring, 2001, Rhodes, Greece.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_20020175
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