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Abstract
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Article Information:
Optimal Spectrum Sensing Approach on Cognitive Radio Systems
S. Shobana, R. Saravanan and R. Muthaiah
Corresponding Author: S. Shobana
Submitted: January 21, 2013
Accepted: March 07, 2013
Published: October 10, 2013 |
Abstract:
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In order for the unlicensed or secondary users to use the licensed spectrum cognitive radio has been proposed. The licensed frequencies can be made use of by unlicensed users through dynamic spectrum access so as to reduce spectrum scarcity. This requires intelligent spectrum sensing techniques. The detection of unused frequency bands is the most challenging task in cognitive radio. In this study such unused spectrum is predicted by exploring the primary users presence in minimum time using matched filter based detection incorporating optimal threshold selection, thereby increasing the sensing accuracy and interference reduction of secondary network.
Key words: Likelihood ratio test, matched filter, spectrum efficiency, , , ,
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Abstract
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Cite this Reference:
S. Shobana, R. Saravanan and R. Muthaiah, . Optimal Spectrum Sensing Approach on Cognitive Radio Systems. Research Journal of Applied Sciences, Engineering and Technology, (18): 3419-3422.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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