UWB systems occupy large bandwidths with very low
power spectral densities. This feature makes UWB
channels highly rich in multipaths. To exploit the
temporal diversity, a UWB receiver usually
incorporates Rake reception. Each multipath in the
channel carries just a fraction of the signal
energy. This phenomenon dictates a Rake receiver
with a large number of fingers to achieve a good
performance. Eventually, the Rake structure becomes
very complex from analysis and design perspectives
and expensive too. This book proposes channel
shortening or time domain equalization as a
technique to...