Design of cognitive radio network spectrum management autonomous system based on viable system model
Yao Fu-qiang · Journal of Circuits and Systems · 2012
Hierarchical spectrum management architecture is proposed in order to solve the spectrum management problem brought by dynamic spectrum access and cognitive radio technology.Cognitive radio spectrum management autonomous system(CRN-SMAS) is proposed based on viable system model(VSM),which enables the cognitive radio(CR) node carry out the spectrum management through coordination across the cognitive radio network(CRN).It enforces the self-restriction of CR and CRN.And it satisfies the requirement that CR accesses the spectrum under different spectrum management constraints.The function modules,interfaces and information flows between the interfaces are demonstrated.And a case study of VSM-based dynamic spectrum allocation system is analyzed in order to show the authentication efficiency and response time of CRN-SMAS.The authentication efficiency is O(1) and the response time can decrease greatly.And the results indicate that the proposed CRN-SMAS has advanced performance than traditional spectrum management method.