Title :
Memory polynomial digital predistortion for power amplifiers
Author :
Yu, Cuiping ; Feng, Yongsheng ; Liu, Yuanan ; Xie, Gang
Author_Institution :
Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
Due to the development of wireless communication systems, the linearity requirement of power amplifiers (PAs) is very stringent. A new concept was proposed to model a predistorter directly without modeling a PA firstly. The algorithm can not only improve the linearity of amplifier, but also adjust the gain of PAs dependently. Based on this algorithm, the behavioral model and structure of the predistorter are also introduced. Linearization performance is demonstrated on a WCDMA signal.
Keywords :
broadband networks; code division multiple access; power amplifiers; WCDMA signal; behavioral model; linearization performance; memory polynomial digital predistortion; power amplifiers; wireless communication systems; Delay; Linearity; Multiaccess communication; Neural networks; Polynomials; Power amplifiers; Power system modeling; Predistortion; Signal analysis; Wideband;
Conference_Titel :
Communications and Information Technologies, 2007. ISCIT '07. International Symposium on
Conference_Location :
Sydney,. NSW
Print_ISBN :
978-1-4244-0976-1
Electronic_ISBN :
978-1-4244-0977-8
DOI :
10.1109/ISCIT.2007.4391976
