Novel Predistortion Algorithm for OFDMA

Ali, Saqib and Markarian, Garik and Arikan, Erdal (2009) Novel Predistortion Algorithm for OFDMA. In: Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th :. IEEE, ESP, pp. 1-5. ISBN 978-1-4244-2517-4

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RF amplifier in a wireless communication system is usually non-linear in nature. If such an amplifier is used in OFDMA based systems, it will cause serious degradation. This degradation will be both in terms of the reduction in BER and the generation of out of band noise. In this paper we have worked on the linearization method of the amplifier. This work is on a hybrid methodology, in which estimation of the model is performed in frequency domain and compensation is performed in time domain. The downlink preamble of the IEEE802.16e system is used here for the estimation purpose. The results for the suppression of spectra are shown at the end.

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Uncontrolled Keywords:
?? ofdma, predictortioncomputing, communications and ictqa75 electronic computers. computer science ??
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Deposited On:
17 Oct 2012 10:58
Last Modified:
16 Jul 2024 02:56