Tomorrow's wireless network must be optimized to offer
enhanced rate performance, at higher and often heterogenous
quality-of-service levels, in user scenarios with ever
increasing mobilily. To meet these challenges, system
designers can resort to a number of tools and techniques at
PHY, MAC or higher layers of the protocol stack. In order
to increase the network efficiency (Bit/Sec/Hz per
Euro/Dollar) while providing the required QoS, a more
efficient utilization of the spectral resource across the
network will be required. Smart resource allocation schemes
should help provide the customer with a smooth user
experience while efficiently tackling interference issues in
agressive reuse environment, whether in cellular or adhoc
scenarios. Ideally, they should be aware, i.e. jointly
designed with lower layer algorithms (multiple antenna
systems, spatial division multiple access, OFDMA, multi-cell
cooperative coding) and potentialy upper layers as well
(transport/routing/application).
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