Journal of Theoretical and Applied Information Technology
Custom usage of a cognitive radio is administrated by the essential utilization aspect of the radio spectrum the natural resource. Cognitive radio trying to resourcefully share the radio spectrum along with potential primary users in the spectrum that must be identified in order to evade causing harmful interference with other users on the spectrum. The vibrant usage of spectrum belongs to the white space assessment and how accurately it can be utilized. In this paper, the authors put forward an open situation of channel estimation at low signal to noise ratio.