A Comparative Analysis of the Complexity/Accuracy Tradeoff in Power Amplifier Behavioral Models
Journal article, 2010
A comparative study of state-of-the-art behavioral models for microwave power amplifiers (PAs) is presented in this paper. After establishing a proper definition for accuracy and complexity for PA behavioral models, a short description on various behavioral models is presented. The main focus of this paper is on the modeling accuracy as a function of computational complexity.
Data is collected from measurements on two PAs—a general-purpose amplifier and a Doherty PA designed for WiMAX—for different output power levels. The models are characterized in terms of accuracy and complexity for both in-band and out-of-band error. The results show that, among the models studied, the generalized memory polynomial behavioral model has the best tradeoff for accuracy versus complexity for both PAs, and can obtain high performance at half of the computational cost of all other models analyzed.
Author
Ali Soltani Tehrani
Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner
GigaHertz Centre
Haiying Cao
GigaHertz Centre
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Sepideh Afsar Doost
Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner
GigaHertz Centre
Thomas Eriksson
GigaHertz Centre
Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner
Magnus Isaksson
University of Gòvle
Christian Fager
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
GigaHertz Centre
IEEE Transactions on Microwave Theory and Techniques
0018-9480 (ISSN)
Vol. 58 6 1510-1520 5460970Areas of Advance
Information and Communication Technology
Subject Categories (SSIF 2011)
Telecommunications
Signal Processing
DOI
10.1109/TMTT.2010.2047920