Energy detection Analysis of Cluster based Cooperative Spectrum Sensing in Cognitive Relay Network

In this study, we analyzed an intra-cluster based cooperative energy detection between source (S) and destination (D), the network model consisting of one source, one destination and M number of clusters between the source and destination and each cluster consisting of N number of cognitive relays. We analyzed the performance of inter-cluster and intra-cluster cooperative energy detection. We derived the detection probability and false alarm for the improvement of energy detection of the proposed new scheme; we also provided the efficient number of relays in each cluster to improve the performance of the network. For relative comparison, we simulated similar situation like direct (non-cooperative), intercluster and intra-cluster communication between source and destination. Simulation results show that the proposed intra-cluster based network improves the network performance in comparison to direct and inter-cluster communication in terms of energy detection. Keyword Cooperative Communication, Cognitive Relay, Energy Detection, Inter-cluster, Intra-cluster.