Title :
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
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;
Conference_Titel :
Signal Processing Advances in Wireless Communications (SPAWC), 2010 IEEE Eleventh International Workshop on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-6990-1
Electronic_ISBN :
1948-3244
DOI :
10.1109/SPAWC.2010.5671076
