Performance analysis of cooperative spectrum sensing with asymmetric channel

This paper presents performance analysis of centralized cooperative spectrum sensing with asymmetric channel between each secondary user and fusion center. The cooperative sensing with AND decision rule and with OR decision rule in fusion center are investigated. The system models are based on conditional probability. Markov chain property is used in determining the relation between fusion center and the actual presence and the actual absence of the primary user. The analysis compares cooperative spectrum sensing with AND decision rule and with OR decision rule with different numbers of secondary users respectively. The results are given in graphics relating cooperative figures and individual figures.