Title :
Quantization error improvement in a digital predistorter for RF power amplifier linearization
Author :
Hassani, Javad Yavand ; Kamareei, Mahmood
Author_Institution :
Fac. of Eng., Tehran Univ., Iran
fDate :
6/23/1905 12:00:00 AM
Abstract :
Power amplifier linearization is very necessary in the third generation of mobile communications. This paper presents some modifications of a complex gain-based predistorting linearizer. The required hardware for the modifications is very simple and negligible. The modifications may be used to reduce the adjacent channel interference (ACI) up to 10 dB, or 20% hardware saving with no ACI improvement. The simulation results prove the improvements
Keywords :
adjacent channel interference; interference suppression; linearisation techniques; mobile radio; power amplifiers; quantisation (signal); radiofrequency amplifiers; ACI reduction; RF power amplifier; adjacent channel interference; complex gain-based linearizer; digital predistorter; power amplifier linearization; predistorting linearizer; quantization error; third generation mobile communications; Dynamic range; Hardware; Mobile communication; Modulation coding; Phase modulation; Power amplifiers; Quantization; Radio frequency; Radiofrequency amplifiers; Table lookup;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956966
