Title :
Compensation of nonlinear distortion in OFDM systems using a new predistorter
Author :
Park, In-Seung ; Powers, Edward J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
This paper presents a new predistorter design technique for combating the nonlinear distortion of orthogonal frequency division multiplexing (OFDM) signals in the presence of a nonlinear high power amplifier (HPA). The performance of the predistorted OFDM system is demonstrated via bit error rate, output power back off and total degradation. It is shown that the performance of the OFDM system linearized by the proposed predistorter is significantly better than that without the predistorter, and the performance approaches that of the OFDM system linearized by an ideal predistorter
Keywords :
OFDM modulation; compensation; error statistics; interference suppression; nonlinear distortion; power amplifiers; HPA; bit error rate; compensation; nonlinear distortion; nonlinear high power amplifier; orthogonal frequency division multiplexing; output power back off; performance; predistorted OFDM system; predistorter; total degradation; Bit error rate; Degradation; Digital audio broadcasting; Fading; High power amplifiers; Nonlinear distortion; OFDM modulation; Power amplifiers; Power generation; Signal design;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4872-9
DOI :
10.1109/PIMRC.1998.734675
