The author has so far had a problem that access channels differ between two wireless terminals (master and slave) that establish communication in a dynamic spectrum access type cognitive radio. Therefore, the theoretical formula of the rendezvous channel completion probability in an ideal environment is derived, and the optimization of the connection probability for the advantageous channel of the slave is proposed from the occupation rate measured by the slave by the learning type occupancy measurement. In this paper, we propose a reduction of the time required to satisfy the required achievement probability of the rendezvous channel method by optimizing the connection probability for the slave's advantageous channel from the theoretical formula of the rendezvous channel completion probability derived in consideration of misdetection.