Cumulative Sum Algorithm for Threshold Optimization in Cognitive Radio Networks

Abstract

The connectivity process relies on radio links. It has been introduced to overcome the defects of wired communication. The demand on Wireless Applications increases, which leads to a limited spectrum utilization. Due to heavy mobile usage services, the whole spectrumhas been assigned only for licensed users (PU). The complete band remains unexploited by the principal users (PU). To overcome this issue, Cognitive Radio Networks (CRN) has been introduced. It has the ability to communicate with multiple users at a time by reusing the unused spectrum by its functions named as Handover and Range Sensing, which empowers us to examine for the fallow free ensembles and apply it. Handover procedure for CRN results in increasing throughput of unlicensed users. Our objective is to achieve the hand over procedure which consists of Threshold Optimization based on cumulative sum (CUSUM) algorithm using MATLAB software for further practical implementation.