Power Optimization of Nonlinear QAM Systems with Data Predistortion
نویسندگان
چکیده
In this paper, the data predistorter with memory used to minimize total power consumption due to amplifier nonlinearity in single power mode quadrature amplitude modulation(QAM) systems is investigated. The design of the data predistorter (DP) with memory is independent of the operating optimality criterion but depends upon the operating point of amplifier nonlinearity. The more useful choice of the operating optimality criterion which determines the optimum operating point of the amplifier is based on the DC power characteristic of the amplifier.
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