COGNITIVE RADIO COOPERATIVE SPECTRUM SENSING METHOD AND FUSION CENTER CAPABLE OF DETERMINING OPTIMAL NUMBER OF SECONDARY USERS

摘要

PURPOSE: A recognition wireless cooperation spectrum sensing method is provided to determine the frequency band of a primary user by calculating optimal sub-user numbers based on predetermined frequency band usage rates. CONSTITUTION: A reception apparatus of a fusion center receives local spectrum sensing information through an antenna(310). A processor determines optimal sub-user numbers in order to determine the predetermined frequency band of a primary user(380). The processor senses cooperative spectrum based on the local spectrum sensing information received from the sub-users of the optimal sub-user numbers(350).