Digital feedforward compensation scheme for the non-linear power amplifier with memory Online publication date: Thu, 04-Nov-2010
by Changsoo Eun, Junsu Kwon
International Journal of Intelligent Systems Technologies and Applications (IJISTA), Vol. 9, No. 3/4, 2010
Abstract: In wideband communication systems, memory effect manifests itself as inter-symbol interference, which combined with the non-linearity, complicates the non-linear compensation. We propose a digital feedforward linearisation method to compensate for the non-linearity of a power amplifier (PA) with memory. The PA is modelled with a Wiener model, which is a linear time-invariant system followed by a memoryless non-linear system. The advantage of the proposed scheme is that the compensation is implemented in baseband by using a digital signal processing technique. Simulation results are given to verify the validity of the proposed scheme.
Online publication date: Thu, 04-Nov-2010
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