Title :
A novel fast HPA predistorter for high PAPR signals
Author :
Wesolowski, Krzysztof
Author_Institution :
Inst. of Electron. & Telecommun., Poznan Univ. of Technol.
Abstract :
The paper presents a novel computationally and memory efficient structure of an HPA predistorter based on piece-wise linear approximation of the HPA inverse characteristics. The adaptation algorithm is derived and representative simulation results are presented showing good quality of the proposed HPA predistorter and its adaptation algorithm
Keywords :
approximation theory; distortion; piecewise linear techniques; power amplifiers; HPA inverse characteristics; HPA predistorter; PAPR signal; adaptation algorithm; high power amplifier; piece-wise linear approximation; Baseband; Constellation diagram; Gain; High power amplifiers; Nonlinear distortion; OFDM; Peak to average power ratio; Predistortion; Quadrature amplitude modulation; Radio transmitters; OFDM modulation; high-power amplifier; nonlinear distortions; predistortion;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on
Conference_Location :
Berlin
Print_ISBN :
9.7838007291e+012
DOI :
10.1109/PIMRC.2005.1651565
