CoAd: a cluster based adhoc cognitive radio networks architecture with broadcasting protocol

Abstract

Considering the mounting demand of radio frequencies, proper utilization of the spectrum is very essential. Cognitive radio, which uses an open spectrum allocation technique, can solve this spectrum congestion problem. Effective deployment of cognitive radio networks highly depends on a robust architecture with appropriate communication protocols. Considering the limitations of recently developed cognitive radio network architectures and associated broadcasting protocols, a dynamic cluster-based simple architecture is proposed for Ad-hoc cognitive radio network. For effective routing and load balancing, proposed architecture is dividing Ad-hoc architecture into clusters. The paper also introduces time slotted based broadcasting protocol for the proposed clustered architecture. Simulation results show the clustering efficiency of the proposed architecture.