UP Paper 1538 US-T-MDOWN
Constant Envelope OFDM In Multipath Rayleigh Fading Channels
Thompson,SteveUniversity of California, San Diego
Geile,MichaelNova Engineering
Zeidler,JamesUniversity of California, San Diego
Proakis,JohnUniversity of California, San Diego
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.

Steve Thompson received the BSc degree from Arizona State University (1999), and the MSc and PhD degrees from the University of California, San Diego (2001 and 2005, respectively) all in Electrical Engineering. From 1997 to 1998 he worked as an Associate Engineer at Inter-Tel, Chandler, AZ. He also worked summer internships at Los Alamos National Laboratory, Los Alamos, NM (1998); and SPAWAR Systems Center, San Diego, CA (2001 and 2004). Dr. Thompson's research interests are in the general area of digital communications. Currently, he is working on constant envelope OFDM at UCSD as a Postdoctoral Scholar.