Cognitive Radio-based Wireless Sensor Networks As Next Generation Sensor Network: Concept, Problems and Prospects

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Provided by: Journal of Computing
Topic: Networking
Format: PDF
Research in wireless sensor networks has witnessed a tremendous increase in the last two decades. Apart from military surveillance, Wireless Sensor Network (WSN) has been deployed in the areas of healthcare monitoring, oil-field explorations, nuclear power plant monitoring, underwater activities surveillance, and geo-informatics. However, with the increased deployment of WSN using the unlicensed spectrum band (that is, the industrial scientific and medical-ISM), there is an increasing demand for communication channels within this band due to over-crowding of the band. Critical issues in sensor networks are the need to minimize energy consumption without undermining the Quality of Service (QoS) provisioning of the network.
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