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Typical wireless multimedia sensor networks are composed of many randomly deployed nodes which can retrieve information from the monitored field and relay packets following a hop-by-hop communication model. The transmission of packets from source nodes to the destination may flow across multiple paths, each one comprised of a number of intermediate nodes. The simple existence of a sensing unit in...
Performance is a main issue in parallel application development. Dynamic tuning is a technique that acts over application parameters to raise execution performance indexes. To perform that, it is necessary to collect measurements, analyze application behavior using a performance model and carry out tuning actions. Computational Grids present proclivity for dynamic changes on their features during...
Future wireless services are expected to provide data-rates in the order of 1 Gbps in local area and 100 Mbps in wide area. A very wide bandwidth is required to support such high rates, in the order of 100 MHz: this wideband will not be available for each operator, thus a shared access to the spectrum among operators is needed. An holistic approach to spectrum sharing is adopted in this paper: not...
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