• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2015, Volume: 8, Issue: 16, Pages: 1-4

Original Article

Upgraded Spectrum Sensing Method in Cognitive Radio Network


Objective: Spectrum sensing ensures reliable detection of primary users and white spaces in the channel such that the cognitive users can utilise the unused spectrum. Method: This work concentrates on enhancement in the energy detection based spectrum sensing technique by employing wavelet packet transform in the place of Fast Fourier Transform (FFT) under different wireless channel models. Result: They are plotted using MATLAB. Receiver operating characteristics curve concludes that wavelet packet based method overrules the traditional method. Application: Free spectrum holes could be found out and efficiently utilized. 
Keywords: Cognitive Radio, Energy Detection, Noise Models, Sensing, Wavelet Packets


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