Constant Envelope OFDM in Multipath Rayleigh Fading Channels

Author

Thompson, Steve C. ; Proakis, John G. ; Zeidler, James R. ; Geile, Michael

Author_Institution

California Univ., San Diego, La Jolla, CA

fYear

2006

fDate

23-25 Oct. 2006

Firstpage

1

Lastpage

7

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 transforms. 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

Keywords

OFDM modulation; Rayleigh channels; discrete Fourier transforms; frequency-domain analysis; interference suppression; multipath channels; FDE; IBI avoidance; Rayleigh channel; constant envelope OFDM; cyclic prefix guard interval; discrete Fourier transform; frequency-domain equalization; frequency-selective multipath fading channel; interblock interference; orthogonal frequency division multiplexing; Bit error rate; Discrete Fourier transforms; Diversity reception; Equalizers; Fading; Frequency diversity; Interference; Modulation; OFDM; Peak to average power ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 2006. MILCOM 2006. IEEE

Conference_Location

Washington, DC

Print_ISBN

1-4244-0617-X

Electronic_ISBN

1-4244-0618-8

Type

conf

DOI

10.1109/MILCOM.2006.302187

Filename

4086528