Constant Envelope OFDM in Multipath Rayleigh Fading Channels

Stephen C Thompson ,J.r Zeidler ,J.g Proakis ,Michael Geile

doi:10.1109/milcom.2006.302187

Constant Envelope OFDM in Multipath Rayleigh Fading Channels

Stephen C Thompson , J.r Zeidler + Show 2 more

https://doi.org/10.1109/milcom.2006.302187

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Publication Date: Oct 1, 2006

Citations: 30

Affiliation: University of California, San Diego

#Constant Envelope Orthogonal Frequency Division Multiplexing #Constant Envelope Orthogonal Frequency Division + Show 8 more

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Abstract

In this paper we consider the problem of equalizing constant envelope orthogonal frequency division multiplexing (CE-OFDM) signals that have been corrupted by frequency-selective multipath fading channels. A cyclic prefix guard interval is used to avoid interblock interference (IBI), and to make possible frequency-domain equalization (FDE) using the discrete Fourier transform. It is shown that CE-OFDM exploits the multipath diversity of the channel due to frequency spreading of the data symbols. CE-OFDM compares favorably with conventional OFDM when the impact of nonlinear power amplification and power backoff is taken into account.

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