Performance Appraisal for Cooperative and Non-Cooperative Spectrum Sensing Techniques in Cognitive Radio

Abstract

 The drastic increase in wireless applications led to an obligation on the usage of available radio spectrums, which led to a demand for an optimistic spectrum management method. Cognitive Radio (CR) materialized as an optimistic technology that can handle spectrum scarcity by providing an efficient strategy to utilize the available bandwidth opportunistically. CR strategically allows the Secondary Users (SU's) to approach the available spectrum without causing intervention with the Primary Users (PU's). This layout is said to be Spectrum sensing (SS) and the unused spectrum that the SU occupies is called a Spectrum Hole. In this research paper, various SS techniques are elaborated that are used in both Cooperative and Non-Cooperative spectrum sensing methods and various parameters like the probability of detection, sensing time, probability of false alarm, probability of miss detection, the energy efficiency of various SS techniques are compared and a drive to a conclusion as to which of the technique would yield an optimal SS result.