In recent years, there has been significant progress in the area of wireless system
design. Wireless local area networks have had enormous success and this is expected
to continue on into the foreseen future. Third-generation cellular systems
have been successfully deployed and are witnessing growing consumer demand.
Fourth-generation systems are being deployed in the near future. Other emerging
systems include sensor networks, body area networks, wireless personal area networks
and positioning systems.
The above commercial success has ignited enormous advances in research in
wireless system design in the last two decades. As a result, new concepts have been
invented with amazing speed. This makes it important to have books available that
are close to ongoing research. This issue was first pointed out by a number of colleagues
who encouraged me to edit this work based on contributions from some of
the foremost researchers in the area of wireless communications.