Power-of-Two Quantization in Decision Feedback Equalization

In this work, we propose and efficient structure for decision feedback equalization (DFE). The proposed structure makes use of the power-of-two quantization concept to completely eliminate the real multiplications in the DFE´s update equations. The resulting structure is shown to substantially reduce the complexity of the DFE without any loss of performance. The study includes performance analysis of the proposed method and closed form expressions for the mean square errors