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A Comparative Analysis of the Complexity/Accuracy Tradeoff in Power Amplifier Behavioral Models
Chalmers, Department of Signals & Systems, Gothenburg, Sweden.
Chalmers, Department of Microtechnology & Nanoscience, Gothenburg, Sweden.
Chalmers, Department of Signals & Systems, Gothenburg, Sweden.
Chalmers, Department of Signals & Systems, Gothenburg, Sweden.
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2010 (English)In: IEEE transactions on microwave theory and techniques, ISSN 0018-9480, E-ISSN 1557-9670, Vol. 58, no 6, p. 1510-1520Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2010. Vol. 58, no 6, p. 1510-1520
Keywords [en]
Behavioral modeling; nonlinear distortion; nonlinear filters; power amplifiers (PAs); radio communication; Volterra series
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:hig:diva-7546DOI: 10.1109/TMTT.2010.2047920ISI: 000278810900006OAI: oai:DiVA.org:hig-7546DiVA, id: diva2:350383
Available from: 2010-09-10 Created: 2010-09-10 Last updated: 2018-03-20Bibliographically approved

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Isaksson, Magnus

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  • sv-SE
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