Turbo decision aided reconstruction of clipping noise in coded OFDM

Author

Gelle, G. ; Colas, M. ; Declercq, D.

Author_Institution

Univ. of Reims Champagne-Ardenne, France

fYear

2004

fDate

11-14 July 2004

Firstpage

591

Lastpage

595

Abstract

High peak average to power ratio (PAPR) is one of the main drawback of the OFDM systems currently used in high rate communication standards. One way to reduce PAPR consists in clipping the amplitude of the OFDM signals introducing an additional noise that degrades the system performances. This work presents two iterative reconstruction algorithms of the clipped samples in coded OFDM systems in presence of channel noise. These two algorithms combine, a classical DAR procedure with an iterative decoding of the channel code in a turbo-like way.

Keywords

OFDM modulation; channel coding; iterative decoding; signal reconstruction; telecommunication channels; telecommunication standards; turbo codes; DAR procedure; OFDM system; PAPR; channel code; channel noise; clipping noise; communication standards; iterative decoding; iterative reconstruction algorithm; orthogonal frequency division multiplexing; peak-average-to-power ratio; turbo decision aided reconstruction; AWGN; Binary sequences; Communication standards; Error correction codes; Iterative algorithms; Iterative decoding; Noise reduction; OFDM modulation; PSNR; Peak to average power ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, 2004 IEEE 5th Workshop on

Print_ISBN

0-7803-8337-0

Type

conf

DOI

10.1109/SPAWC.2004.1439312

Filename

1439312