Pulse superposition: a technique for peak-to-average power ratio reduction in OFDM modulation

Author

Farnese, D. ; Leva, A. ; Paltenghi, G. ; Spalvieri, A.

Author_Institution

CEFRIEL, Milano, Italy

Volume

3

fYear

2002

fDate

2002

Firstpage

1682

Abstract

A new technique for the control of the peak power in OFDM modulation, called pulse superposition, is presented. The proposed technique adds to the original OFDM signal a peak-reducing signal composed of Gaussian impulses centered on the peaks of the OFDM signal in the time domain. The technique combines effectiveness and low complexity, requires only a modest amount of side information and does not lead to signal-to-noise ratio reduction. In this paper, simulation results are presented.

Keywords

OFDM modulation; computational complexity; quadrature amplitude modulation; 64-QAM; Gaussian impulses; IFFT; OFDM modulation; OFDM signal; low complexity technique; output back-off reduction; peak-reducing signal; peak-to-average power ratio reduction; pulse superposition; side information; signal-to-noise ratio; simulation results; time domain; Frequency division multiplexing; High power amplifiers; OFDM modulation; Peak to average power ratio; Power amplifiers; Power generation; Pulse modulation; Robustness; Signal generators; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2002. ICC 2002. IEEE International Conference on

Print_ISBN

0-7803-7400-2

Type

conf

DOI

10.1109/ICC.2002.997135

Filename

997135