ORF-RE Workshop

Intelligent Multiple Antenna Structures for Adaptive Wireless Systems

Behavior Modeling and Linearization of Wideband and Multi-carrier RF Power Amplifiers

9:30 – 10:30, Room DC 1302

Dr. Slim Boumaiza
University of Waterloo

This talk will begin with a description of the main sources of nonlinear and linear distortions (termed memory effect effects), that strongly affect the quality of the signal at the output of radiofrequency high-power amplifiers (HPA), in particular, when driven with high spectral efficient, multi-carrier and wideband signals. This will be followed by an analysis of advanced dynamic nonlinear behavioural modeling methods that are devised for the prediction and/or digital predistortion of the response of wideband HPAs. Approaches for reducing the computation complexity of the identification of these models will be also described. A number of application examples of these linearization and modeling approaches to generic power amplifiers will then be presented to illustrate their capabilities.

This talk will also expound on a number of our research activities aimed at the investigation of Ultra Power Efficient and Linear Radio Transmitters suitable for Software Defined Radios.


Slim Boumaiza (S’00–M’04-SM’07) received his B.Eng. degree in Electrical Engineering from the École Nationale d’Ingénieurs de Tunis, Tunis, Tunisia, in 1997 and the M.S. and Ph.D. degrees from the École Polytechnique de Montréal, Montréal, QC, Canada, in 1999 and 2004, respectively.

From May 2005 to August 2007, Dr. Boumaiza was attached to the Electrical Engineering Department, University of Calgary, Calgary, AB, Canada, as an Assistant Professor, and a Faculty Member with the iRadio Laboratory. He is currently leading the Emerging Radio System Research Group that is conducting multidisciplinary research activities in the general areas of RF/microwave design and millimeter components, and systems for wireless communications, in the Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada. Dr. Boumaiza has authored or coauthored over 80 referred journals and international conference papers. His current research interests specifically include RF/DSP mixed design of intelligent RF transmitters, design, characterization, modeling and linearization of high-power RF amplifiers, reconfigurable and multiband transceivers, and adaptive DSP.