Enhancing Throughput Over Varied Fading Channels for Cluster-Based Cooperative Spectrum Sensing in Cognitive Wireless Networks

This paper reports throughput maximization over various fading channels for cluster-based cooperative spectrum sensing in cognitive radio. For that purpose, the secondary users are grouped into clusters and effect of different fusion rules on Nakagami, Weibull, Rayleigh Rician is investigated. Inside each cluster, i.e., intra fusion, OR ( $$m=1$$ ) AND $$m=K$$ considered. Further, a formula proposed optimal number which maximize channels. expression derived two inter-cluster (fusion rule between cluster head centre) given as $$p=1$$ $$p=N$$ ). Simulation results carried out OR-AND , AND-OR size (number inside cluster), optimized Weibull Nakagami The expressions validated by results. It found fixed parameters, at maximum $$N=6$$ $$N=5$$ respectively rule. In case rule, achieved respectively.