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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 reduce…mehr

Produktbeschreibung
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 reduce the complexity of the UWB Rake
receiver. It begins with the definition of channel
shortening and provides a summary of the existing
channel shortening equalizer (CSE) designs and their
limitations. Consequently, this book presents
several CSE designs to reduce the UWB Rake receiver
complexity. A detalied performance analysis of the
proposed designs indicates that the CSEs can play a
significant role in designing a simple and cost
effective Rake receiver for UWB systems. This book
should be useful to the research students exploring
new CSE designs and applications.
Autorenporträt
Dr. Imtiaz H. Syed received a bachelor of electrical engineering
degree from N.E.D. University, Pakistan, in 1998, master and
Ph.D. degrees, from University of New South Wales,
Australia, in 2001 and 2008, respectively, where he is currently
a research fellow. His research interests include UWB, relay
networks and equalization techniques.