This paper presents an adaptive tap assignment technique for improving
the performance of a previously reported reduced-complexity decision-
feedback equalizer (DFE) for broadband Wireless systems, The spacings
of individual feedforward taps of the DFE are made selectable so that,
when the channel consists of a sparsely distributed multipath with a
large delay spread (e.g., ''hilly terrain'' (HT) delay profiles), the
equalizer span can be increased without increasing the total number of
taps, We propose simple tap selection algorithms and show that they p
rovide: 1) performance gains over a contiguous-tap approach in various
outdoor delay profiles and 2) improved robustness against fast fading
.