Energy-Aware Approaches in Cognitive Radio Sensor Networks

Karel Toledo de la Garza


Wireless Sensor Networks (WSN) constitute a new application field that has attracted great interest among researchers in recent years [1]. Due to the expansion of WSN scenarios running in Industrial, Scientific, and Medical (ISM) bands, a new challenge associated with spectral efficiency has arisen. To overcome this issue, Mitola [2] has introduced the concept of Cognitive Radio (CR) which empowers nodes by increasing the radio unit's awareness of its environment. This technology allows each CR node to access the unused frequency bands under certain interference constraints with the primary user (PU) signal.


energy-efficiency, cognitive radio, wireless sensor networks

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Telemática journal. ISSN 1729-3804

Havana University of Technology "José Antonio Echeverría", CUJAE.

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