Design of clustered architecture for cooperative spectrum sensing with optimization of number of clusters
Katre Apurva · 2013
Abstract — The main idea behind this work is to use an appropriate routing protocol for cognitive network which becomes a major necessity now a days. As the available radio frequency for wireless communication gets lesser day by day because of licensing, so we need to have some way to use these frequencies in a more efficient manner. But since the topology of ad-hoc network changes dynamically so our cognitive ad-hoc network should be capable to cope up with dynamic network topology as well as diverse quality of service. And also proper routing protocol should be there so that an efficient routing can be done apart from maintaining QoS.Spectrum is a very precious resource and thus underutilization of a large part of allocated spectrum is not affordable. Where increasing demand for wireless applications has made it difficult to manage limited spectrum, allocated spectrum utilization is found to be very low[3]. Cognitive radio is proposed as a promising solution for increasing spectrum utilization and thereby helping to mitigate spectrum scarcity. Keywords—Spectrum sensing, Cluster,Primary user,Secondary user.