Performance of multi-split decision feedback equalizer

The idea of multi-split adaptive filtering is applied to the DFE. The feedforward and feedback sections in the DFE are divided into parallel sub-filters by imposing separately symmetry and antisymmetry conditions on the impulse responses of the filters by using appropriate and distinct sets of linear constraints. The purpose of this is to obtain a new structure that gives better performance than the conventional structure. The performance of multi-split DFE is tested with different algorithms (LMS, RLS, DCT-LMS) and compared to that of a multi-split linear transversal equalizer.