Dynamic resource allocation using priority queue scheduling in multi-hop cognitive radio networks

摘要

Cognitive Radio (CR) is novel technology which provides a great solution to genuine lack of range and radio assets in today's situation, intellectual radio offers extraordinary arrangements. Cognitive radio is a pioneering technology which has a capability to improve the effective utilization of valuable natural resources. Cognitive Radio Network (CRN) is a vital wireless communication system that has a great awareness of its atmospheres. The heterogeneous nodes have meets spectrum accessing challenges with varying computing power, sensing range and dynamic spectrum allocation. We have focused on optimum resource allocation and scheduling for primary users (PUs) and secondary users (SUs) to reduce interference to the PUs for improving the performance and throughput. In this article we studied the dissimilar resource allocation based on dynamic approach and proposed an idea of improving priority based scheduling algorithm by comparing with an existing CRN algorithm. The simulation result provides a significant improvement of throughput.