Skip to Main Content
Reducing the number of states is a possible solution for complexity reduction of trellis-based equalization. It has been often proposed that such approaches profit from a near minimum phase target channel which may be obtained by prefiltering the incoming sequence appropriately. A possible finite length solution of such a prefilter is given by the optimal settings of the decision feedback equalizer with a finite length constraint on its feedforward and feedback filter. We focus on the limiting behavior of this solution with respect to the unconstrained solution which is obtained by spectral factorization.
Global Telecommunications Conference, 1999. GLOBECOM '99 (Volume:5 )
Date of Conference: 1999