Paper Info
Title
Performance of a baseband adaptive predistorter in presence of orthogonal multicarrier modulation
Abstract
The performance of a baseband adaptive predistortion system to linearize memoryless high power amplifier (HPA) are analyzed in the presence of an Orthogonal Frequency Division Multiplexing (OFDM) signal. The pre distortion scheme adopted is based on a digital signal processing microprocessor and a memory look-up table to predistort the baseband drive signal. Stability of the adaptation algorithm, rate of convergence and effect of quantization are assessed through simulation. The curves of Total Degradation versus the Output Back-off have been calculated for QPSK, 16QAM and 64QAM constellations. Starting from these results, the improvement brought by the use of the predistorter and the degradation caused by the quantization has been assessed.
Year
DOI
Venue
2001
10.1002/ett.4460120206
EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS
Field
DocType
Volume
Digital signal processing,Baseband,Quadrature amplitude modulation,Control theory,Computer science,Frequency-division multiplexing,Electronic engineering,Modulation,Quantization (signal processing),Orthogonal frequency-division multiplexing,Predistortion
Journal
12
Issue
ISSN
Citations 
2
1124-318X
1
PageRank 
References 
Authors
0.61
5
2
Name
Order
Citations
PageRank
Giovanni Santella121.71
Franco Mazzenga215335.12