Equalização Cega com Realimentação de Decisões Baseada em Redes Imunológicas Artificiais

Abstract

— This work proposes a blind strategy for adapting the parameters of a decision-feedback equalizer (DFE). The approach, which is based on the constant modulus (CM) criterion and on an artificial immune system, was tested under scenarios characterized by channels representative of a number of aspects relevant from a practical standpoint. In all cases, it was possible to find the global optimum of the CM criterion with a number of iterations considered by us to be quite reasonable in view of, inter alia , the complexity of the employed search tool.