A Comparative Analysis of the Complexity/Accuracy Tradeoff in Power Amplifier Behavioral Models
Artikel i vetenskaplig tidskrift, 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.
Författare
Ali Soltani Tehrani
Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk
Gigahertzcentrum
Haiying Cao
Gigahertzcentrum
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
Sepideh Afsar Doost
Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk
Gigahertzcentrum
Thomas Eriksson
Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk
Gigahertzcentrum
Magnus Isaksson
Högskolan i Gävle
Christian Fager
Gigahertzcentrum
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
IEEE Transactions on Microwave Theory and Techniques
0018-9480 (ISSN) 15579670 (eISSN)
Vol. 58 6 1510-1520 5460970Styrkeområden
Informations- och kommunikationsteknik
Ämneskategorier (SSIF 2011)
Telekommunikation
Signalbehandling
DOI
10.1109/TMTT.2010.2047920