Abstract
AbstractSpectrum sensing is identified as a pivotal aspect for the cognitive radio network to efficiently utilize the unused radio frequency band. In cognitive radio networks, each cognitive radio user senses the spectrum hole, and in reply, forward their decisions, whether primary user is present or absent to the common receiver. In this research article, the cooperative spectrum sensing is calculated and analyzed using energy detector (ED) by selection combining (SC) and maximal ratio combining (MRC) diversity techniques at each cognitive radio user, and it is proved that by increasing number of branches (Antennas) at each cognitive radio user, maximal ratio combining (MRC) is giving better performance by optimal reduction of the total error in a cognitive radio network.KeywordsMaximal ratio combining (MRC)Energy detector (ED)Cognitive radio (CR)Selection combining (SC)
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