Abstract:
In this paper, a method to reduce the error prop-agation in Decision Feedback Equalizers (DFEs) is addressed. An M-level staircase nonlinearity is pro-posed for the feedback chain of the DFE.
Analytical results are presented to show advantages
obtained with increasing M. Finally, the saturation
nonlinearity (the limiting case as M tends to in nity)
is suggested for the DFE. Simulations are provided to support the proposed DFE. Its performance is found to be better than that of the recently proposed Era-sure DFE.