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Hard Decision Combining-based Cooperative Spectrum Sensing in Cognitive Radio Systems
Cited 11 time in
Web of Science
Cited 10 time in Scopus
- Authors
- Issue Date
- 2009
- Citation
- IWCMC'09. Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly, pp. 906-910, 2009
- Keywords
- cognitive rradio ; cooperative channel sensing ; feedback error
- Abstract
- In this paper, we propose a cooperative spectrum sensing scheme
to maximize the detection probability in cognitive radio systems.
We first analytically derive a closed-form expression for the
detection and false alarm probability in terms of the number of
cooperating users, and then determine the number of cooperating
users that maximizes the detection probability for a given false
alarm probability. It is shown that the detection probability of
cooperative sensing is maximized when the cooperation is
performed among users with high signal-to-noise power ratio and
interference-to noise-power ratio. Finally, the analytic results are
verified by computer simulation.
- Language
- English
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