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Generalized interior-point method for constrained peak power minimization of OFDM signals

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3 Author(s)
Zhenhua Yu ; School of Electrical and Computer Engineering, Georgia Tech, Atlanta, 30332-0250, USA ; Robert J. Baxley ; G. Tong Zhou

In this paper we present two results on reducing the peak power of orthogonal frequency division multiplexing (OFDM) symbols via constellation extension (CE). The first result is a derivation of the interior-point method (IPM) algorithm needed to find the optimal distortion set, where the distortion is constrained by convex functions. Next we optimize the parameters of a hybrid CE constraint set to minimize the BER. Numerical examples are provided to illustrate the findings.

Published in:

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Date of Conference:

22-27 May 2011