Future wireless networks will be driven by various ubiquitous broadband
services such as portable telephony, mobile Internet, Voice over IP, and
IPTV. To accommodate a single cell's large number of users, each running
a different application on its mobile terminal, optimization of limited
resources is critical. The transmission path from the base station to
the mobile terminal is the downlink. In the downlink, feedback of mobile
user's condition to the base-station is essential for optimal allocation
of limited resources, however, it is a system design challenge. Mobile
user's condition is comprised of its wireless channel condition, among
multiple other such system metrics. This book explores optimal resource
allocation, with partial knowledge of a mobile user's condition at the
base station. It shows the right feedback information is application
dependent. The set of techniques explored improve the performance and
bandwidth efficiency of future wireless systems. The work should be very
useful to industry professionals in wireless networks, academicians -
professors or graduate students; or anyone else with an interest in
wireless communications.