Research on digital predistortion based on adaptive algorithms-Reference-Cited by-同舟云学术

Research on digital predistortion based on adaptive algorithms

Published:2014-09-04 Issue:5 Volume:24 Page:
ISSN:0960-1295
Container-title:Mathematical Structures in Computer Science
language:en
Short-container-title:Math. Struct. Comp. Sci.

Author:

DAI JING,ZHOU RUI

Abstract

In wireless broadband communication systems, the inherent non-linearity of power amplifiers creates spectral growth beyond the signal bandwidth, which interferes with adjacent channels. It also causes distortions within the signal bandwidth. In this paper, we study five digital predistortion algorithms for linearising two different non-linear memory power amplifier models. The simulation results show that the proposed digital predistorter using different algorithms can improve the in-band distortion and out of band spreading in different ways. In particular, the DLMS algorithm with fast convergence can significantly suppress spectral regrowth (by 60dB), effectively compensating for the non-linearity of the power amplifier.

Publisher

Cambridge University Press (CUP)

Subject

Computer Science Applications,Mathematics (miscellaneous)

Reference10 articles.

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5. Mahfuz E. and Wang C. (2007) A High-Throughput DLMS Adaptive Algorithm. In: Proceedings ISCAS 2005: IEEE International Symposium on Circuits and Systems 3753–3756.