Artificial Bee Colony for Pre-Distortion of Nonlinear Power Amplifiers

Research Area: Volume 2 Issue 6, Nov. 2013 Year: 2013
Type of Publication: Article Keywords: Artificial Bee Colony, Linearity, Nonlinear, Optimization, Power Amplifiers, Pre-Distortion
Authors:
  • Bipin P. R.
  • Dr. P. V. Rao
Journal: IJEIR Volume: 2
Number: 6 Pages: 514-518
Month: November
Abstract:
Power amplifiers are indispensable components in a communication system and are inherently nonlinear. A high power amplifier might exhibit limiting and saturation, when the amplitude or power is very large. Nonlinearities in communication systems may be either baseband or band pass. To improve the power amplifier efficiency without compromising its linearity, power amplifier linearization is essential. The inflexibility in defining the system for analysis or processing is the major drawback associated with these approaches and most of the works use analytical functions to be minimized; however, there is a lack of procedures or steps for effectively minimizing the function with various constraints. In this paper, Artificial Bee Colony (ABC) algorithm to overcome the lagging performance of the linearity problem in mapping that exists. Therefore ABC algorithm is proposed to rectify and find a better solution for the minimization functions. Many computational complexities which affect the performance of the pre-distortion will be avoided. The new technique will be enhanced with a criterion that reduce the computational complexities and overcomes the overall prevailing problems

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