Abstract
Cooperative spectrum sensing in cognitive radio networks need many users to carry out because sensing performace is influenced by the credibility of a single user. A trsut based cooperative spectrum sensing framework is put forward for establishing the trust value of each user in view of local sensing differences, sensing location factors, control channel conditions, which can accurately weigh a single user's information at the CR base station. Simulation results show that while applied to concrete models the proposed framework has lower missed detection probability under a certain false alarm probability.
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