Baseband compensation techniques for bandpass nonlinearities
Paper in proceedings, 2003

In this paper we present and compare several methods of compensating the nonlinearity of the RF front-end of a wireless system. Two baseband compensation techniques, namely predistortion and postdistortion (equalization) of the baseband signal are discussed and the problems associated with each one is addressed. Furthermore a combination of a predistorter and a nonlinear equalizer and also predistortion of oversampled baseband signal are analyzed. It will be shown that under realistic conditions with a frequently saturated amplifier and ISI channel, the latter two methods are able to compensate the nonlinearity up to a good extent, while the first two methods can only operate under certain assumptions for channel conditions and nonlinearity type.

system-comp

Author

Ali Behravan

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Thomas Eriksson

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Proceedings of the IEEE Vehicular technology conference fall 2003, Orlando, Florida, USA, OCT 06-09

279-283

Subject Categories

Computer and Information Science

DOI

10.1109/VETECF.2003.1285023

More information

Created

10/7/2017