Signal Detection in Cognitive Radio Networks over AWGN and Fading Channels |
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| Authors: | Vilaskumar M Patil Rohitha Ujjinimatad Siddarama R Patil |
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| Affiliation: | 1.Department of Electronics and Communication Engineering,Poojya Doddappa Appa (PDA) College of Engineering,Kalaburagi,India;2.Department of Electronics and Communications,Proudadevaraya Institute of Technology (PDIT),Hosapete,India |
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| Abstract: | In this paper, we consider the problem of spectrum sensing based on energy detection method in cognitive radio over wireless communication channels when users experiences fading and nonfading effects. The closed-form analytical expressions for the detection probability are derived over nonfading additive white Gaussian noise channel, Rayleigh, Rician and Nakagami-m fading channels. The detection probability involving Marcum-Q function is replaced by closed-form expression. The probability distribution function of fading channels is used to obtain the expressions for detection probability. The new derived numerical results are simulated under various parameters. |
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