Alocação de Potência para Sistemas OFDM com Amplificadores de Potência Não Lineares

This work proposes low complexity heuristics that solve data rate maximization problems in orthogonal frequency division multiplexing (OFDM) systems taking into account the distortions inserted by a nonlinear power amplifier (PA). The heuristics are based on the famous power allocation technique patented by Hughes-Hartogs, but providing significant energy efficiency gains in the considered scenario. In addition, in this paper, an analysis of the algorithmic complexity of the proposed methods is performed in order to verify the complexity reduction when compared to algorithms existing in the literature.