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Summary: PCC-OFDM WITH REDUCED PEAK-TO-AVERAGE POWER RATIO
Jean Armstrong
Department of Electronic Engineering, La Trobe University, Bundoora, Victoria 3086, Australia
Email: j.armstrong@ee.latrobe.edu.au
This work was supported in part by an Australian Research Council Grant
Abstract
Polynomial cancellation coded orthogonal frequency
division multiplexing (PCC-OFDM) with overlapping
symbol periods is a modulation technique which
overcomes many of the disadvantages of OFDM. PCC-
OFDM is much less sensitive to frequency offset and
Doppler spread than OFDM. PCC-OFDM like OFDM has
a high peak-to-average power ratio (PAPR). In this paper
it is shown that the PAPR can be reduced without increase
in out-of-band power by using a new clip and filter
technique. Results are presented for the new system in a
two path multipath channel and for the case of frequency
offsets. The PAPR can be reduced to 6dB or lower with
little increase in bit error rate.
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