Baseband compensation techniques for bandpass nonlinearities
Paper i proceeding, 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

Författare

Ali Behravan

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Thomas Eriksson

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

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

279-283

Ämneskategorier

Data- och informationsvetenskap

DOI

10.1109/VETECF.2003.1285023

Mer information

Skapat

2017-10-07