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In recent years, the deployment of wireless short-range devices has increased dramatically, especially in urban settings with high density buildings. This is causing high levels of interference at the ISM bands, thus deteriorating performance. However, there is spectrum being unused and if the devices could make opportunistic use of available channels in other bands (OSA) it will improve their performance...
Dense urban zones with high concentration of Wireless networks can degenerate in problems such as spectrum scarcity for devices in licensed bands, or high interference levels for devices in unlicensed bands, thus producing QoS problem. A possible solution to deal with this issue is the use of wireless devices to access opportunistically a licensed band. For this reason, this paper evaluates a channel's...
Currently, the number of wireless networks has increased especially in urban zones where the devices concentration is enormous. This fact and the huge bandwidth consumption per device have produced spectrum scarcity in the operation bands assigned for those networks. Consequently, the scientific community has been led to seek new approaches to use the spectrum. In this context, opportunistic spectrum...
Currently, the number of wireless networks has increased especially in urban zones where the concentration is enormous. This fact and the huge bandwidth consumption per device have produced spectrum scarcity in the operation bands assigned for those networks. Consequently, they have induced the search of new approaches to use the spectrum. In this context, Opportunistic Spectrum Access (OSA) has appeared...
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