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Research Article Open Access
Cognitive radio is one of the most promising technologies that resolves the problem of inefficient spectrum utilization by enabling secondary user to opportunistically utilize the unused licensed bands. The prime functionality of cognitive radio is spectrum sensing in which presence of the primary usersis accurately detected. In this paper various spectrum sensing methods are presented together with the discussion over their advantages and disadvantages.
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Author(s): Prachi Kumari
Cognitive radio,spectrum sensing, primary user, secondary user. , Speech Therapy for Adults,Speech and Language pathology,Bilingual Speech pathology,Speech and Language Disorders.