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Dynamic Channel Allocation Scheme for Hybrid Cognitive Network

Cognitive radio (CR) systems have been proposed to efficiently exploit the spectra that have been assigned to the primary network but are in underutilization. In this paper, we consider the guard channel policy where certain number of channels is dedicated to primary network calls and the policy in which this number of channels is dynamically adapted to the requirements from both primary radio network (PRN) and cognitive radio network (CRN).