Energy and Spectrum Efficient Cognitive Radio Sensor Networks

In this paper, we design a power efficient wireless cognitive sensor network that uses battery power efficiently and is critical for maximizing sensor networks. Numerous cognitive radio technology had been added to update spectrum utilization in frequency bands allotted to certified customers. Within spectrum sharing version, secondary customers can send spectrum with number one users while the general interface resulting from spectrum utilization must no longer begin at a predefined degree. Energy performance is one of the maximum essential metrics for cognitive wireless networks, as cognitive wireless networks must function under tight limits on transmit power. There are many ways to trick cognitive radio into determining whether the channel is busy or free. Stimulation effects show the effectiveness of the proposed power and spectrally efficient schemes outperforming existing schemes.