Spectrum Sensing in Cognitive Radio using Energy Detection under Non Fading Environment

Abstract

The growing demand for wireless applications leads to the effective utilization of available spectrum. The explosion of wireless applications creates an ever-increasing demand for more radio spectrum. However these bands are significantly underutilized due to static allocation. The issue of spectrum underutilization can be solved in a better way by using cognitive radio technology. Cognitive Radio can able to sense smartly and adapts with the changing environment. The main issues with cognitive radios are that it should not interfere with the primary users and should vacate the band when it is required. For this purpose energy detector is discussed in this paper and performance evaluation of this is calculated. The performance evaluation is done between cooperative and non cooperative spectrum sensing schemes under non fading environment.