Performance Analysis of a Decision Feedback Equalizer Using Error Feedback
Wang Yong · Information and Electronic Engineering · 2006
The decision feedback equalizer(DFE) can compensate for channels with severe inter symbol interference(ISI) without as much noise enhancement as the linear equalizer(LE).The error feedback DFE which is modified on the basic of the conventional DFE uses a error feedback filter to decrease the relativity of the error that exists in the conventional DFE,so it is more effective than the conventional DFE especially for channels with severe ISI,whereas its hardware complexity does not increase greatly.The theoretical analysis and simulations have confirmed the advantages of the error feedback DFE.