Performance Analysis of Equal Gain Combining of Cooperative Spectrum Sensing in Cognitive Radio Networks Kushwah Aparna Singh1, Vishwakarma Aayushi2 1Assistant Professor, Electronics and Communications Department, UIT-RGPV, Bhopal, India 2Student, Electronics and Communications Department, UIT-RGPV, Bhopal, India Online published on 8 December, 2017. Abstract There is a huge demand for spectrum, but in conventional system, radio spectrum is inefficiently used. To overcome this problem cognitive radio (CR) technology concept came in to existence. Cognitive Radio aims to access the wireless spectrum in an opportunistic manner while the licensed user is not using it. Among most challenging problems in cognitive radio systems is spectrum sensing concepts. This study has been performed based on Energy detection spectrum sensing techniques. Energy detection based spectrum sensing techniques are favourable due to its simplicity and low complexity. This paper investigates energy detection based cooperative spectrum sensing technique over Additive White Gaussian Noise (AWGN) channel. Simulation of the cognitive system is created in MATLAB programming language to implement the scheme and to analyse its simulation performance. The results of the simulation show that the cooperative spectrum sensing and equal gain combining techniques are appropriate for radio frequency sensing networks. The performance of the technique was assessed by the use of the receiver operating characteristics (ROC) curves over AWGN channel. Top Keywords Cognitive Radio Network (CRN), Equal Gain Combining (EGC), Fusion Centre, Matrix Laboratory (MATLAB), Probability of detection, Probability of false alarm and Probability of Missed detection. Top |