Linearization of volterra series model power amplifier for wideband WCDMA base stations

Ruchi Pasricha and Sanjay Sharma

doi:10.17485/ijst/2009/v2i3.8

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Linearization of volterra series model power amplifier for wideband WCDMA base stations

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2009/v2i3.8

Year: 2009, Volume: 2, Issue: 3, Pages: 1-2

Original Article

Linearization of volterra series model power amplifier for wideband WCDMA base stations

Ruchi Pasricha and Sanjay Sharma

CEC, Landran; ECED, Thapar University, Patiala, India.

*Author for the correspondence:
Sanjay Sharma
CEC, Landran; ECED, Thapar University
Patiala, India.
E-mail: [email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Digital pre-distortion techniques are widely used in linearization of RF power amplifiers. In this paper Lookup-table (LUT) type Adaptive Digital pre-Distortion (ADPD) is presented. In this algorithm, an output signal of the Power Amplifier (PA) is used as reference signal. It is used to update the coefficients of the LUT, so that characteristics of the PA, such as temperature dependence, do not have influence on the convergence performances. Simulation results have been presented.
Keywords: Digital pre-distortion (DPD), error vector magnitude (EVM), power amplifier (PA), look-up-table.