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High Speed Downlink Packet Access (HSDPA) defines a new High Speed Shared Channel (HS-DSCH) which allows for practical speeds up to 10 Mbps. Among all the changes introduced by HSDPA, the most prominent ones regarding QoS are the inclusion of "link adaptation", "Hybrid ARQ" and the quick "Scheduling" algorithms. In HSDPA the Radio Network Controller (RNC) is still the...
Motivated by recent regulatory evolutions that pave the way to secondary spectrum markets, we investigate profit maximization in a loss network that accommodates calls of two classes of users: 1) primary users (PUs) and 2) secondary users (SUs). PUs have preemptive priority over SUs, i.e., when a PU arrives to the system and finds all channels busy, it preempts an SU. We assume that SU demand is sensitive...
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