Journal of Computer Science
and Information Technology

Performance EvaluationBased on Energy Detection and Operational Interval of Spectrum Sensing In Cognitive Radio
Shalini, V.S Jadhav

Abstract
Cognitive radio is an intelligent communication system which focus on dynamic spectrum usage rather than fixed spectrum assignment. Cooperative spectrum sensing is a technique for detecting the primary user accurately based on information collected from various secondary users. Energy detection technique for spectrum sensing method is employed to determine the occupancy of the frequency spectrum observed over a time interval. It deals with the simulation of the spectrum sensing algorithm for Cognitive Radio under low SNR scenario. With small tradeoffs between the detection probability and the false alarm probability, improvement can be done over spectrum sensing ability greatly. This is depicted through MATLAB. And through NETSIM, scenario is elaborated in terms of data traffic with respect to operational interval.

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