OFDM receivers with iterative nonlinear distortion cancellation

Author

Baltar, Leonardo G. ; Dierks, Stefan ; Gregorio, Fernando H. ; Cousseau, Juan E. ; Nossek, Josef A.

Author_Institution

Inst. for Circuit Theor. & Signal Process., Tech. Univ. Munchen, München, Germany

fYear

2010

Firstpage

1

Lastpage

5

Abstract

We propose two practical schemes for the cancellation of nonlinear distortions caused by the power amplifiers (PA) in Orthogonal Frequency Division Multiplexing (OFDM) systems. The algorithms are iterative and located at the receiver. They utilize a soft channel decoder to improve the capabilities of the distortion estimation and relay all the computational complexity to the receiver. Simulation results show that the algorithm can improve the coded bit error rate (BER) to levels close to the linear system case.

Keywords

OFDM modulation; communication complexity; decoding; error statistics; iterative methods; nonlinear distortion; power amplifiers; receivers; OFDM receiver; coded bit error rate; computational complexity; distortion estimation; iterative nonlinear distortion cancellation; orthogonal frequency division multiplexing system; power amplifier; soft channel decoder; Bit error rate; Decoding; Estimation; Nonlinear distortion; OFDM; Receivers; Reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications (SPAWC), 2010 IEEE Eleventh International Workshop on

Conference_Location

Marrakech

ISSN

1948-3244

Print_ISBN

978-1-4244-6990-1

Electronic_ISBN

1948-3244

Type

conf

DOI

10.1109/SPAWC.2010.5671076

Filename

5671076