A new frequency domain equalizer for channels with long impulse response

In this paper a recently introduced block Decision Feedback Equalizer (DFE) is further studied and developed. Moreover it is shown that the new technique is particularly suitable for channel equalization in applications involving channels with medium up to long impulse response. The new equalizer, which is totally implemented in the frequency domain, offers remarkable savings in computational complexity as compared to the conventional time domain DFE. Moreover the new technique results in a Symbol Error Rate which is always lower (or much lower) with respect to that of the existing frequency domain linear equalization techniques.