Title :
A High Efficiency PA Modeling Approach for DPD Based on Memory Polynominal
Author :
Zeng, Zhibin ; Sun, XiangRan
Author_Institution :
Eng. Res. Center of Digital Audio & Video, Commun. Univ. of China, Beijing, China
Abstract :
Digital predistortion is a predominant technique for the linearization of power amplifier. Memory polynomial is often used to describe the PA model with memory effect. In this paper, based on memory polynomial, a new PA modeling approach which combines look-up table with characteristic time-delay is proposed. Simulation results show that the DPD based on this proposed PA modeling can decrease computational complexity and increase operation frequency significantly.
Keywords :
analogue circuits; delays; power amplifiers; table lookup; high efficiency PA modeling approach; look-up table; memory polynominal; operation frequency; power amplifier; time-delay; Computational modeling; Delay; Mathematical model; Polynomials; Power amplifiers; Table lookup; characteristic time-delay; digital predistortion; look-up table; memory polynomial; power amplifier;
Conference_Titel :
Computer Science and Electronics Engineering (ICCSEE), 2012 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4673-0689-8
DOI :
10.1109/ICCSEE.2012.100
