Energy-Aware Approaches in Cognitive Radio Sensor Networks

Karel Toledo de la Garza
2020 Telemática  
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
more » ... node to access the unused frequency bands under certain interference constraints with the primary user (PU) signal.
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