An Optimized Algorithm Maximum a Posteriori Energy Detection

In the modern era due to increase in large number of users the issue of spectrum congestion arises. This type of muddle can be resolve by various techniques but Cognitive radio is one of them. Cognitive Radio is a smart technique that can provide the efficient usage of spectrum. The spectrum sensing is the chief principle of cognitive radio networks. This paper covers the major contents of Cognitive Radio such as the need of CR and also its types and makes the useful analysis of SNR and Detection. The relationship between SNR and false alarm has also been analysed in this paper. Comparison on the basis of the theoretical value and the simulated result are also discussed.