Parameters Optimization for Cooperative SpectrumSensing in Cognitive Radio Networks

doi:10.13190/jbupt.201101.111.songjq

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2011, Vol. 34 ›› Issue (1): 111-115.doi: 10.13190/jbupt.201101.111.songjq

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Parameters Optimization for Cooperative SpectrumSensing in Cognitive Radio Networks

Received:2009-11-20 Revised:2010-09-30 Online:2011-02-28 Published:2011-02-28

Abstract

Abstract:

To improve the efficiency of spectrum sensing and to maximize the system sensing efficiency with meeting interference avoidance constraint, a parameters optimization algorithm for cooperative spectrum sensing in resourcelimited cognitive radio networks is proposed. By operating the optional weights between the channel utilization efficiency and system resources usage efficiency, the proposed algorithm can figure out the optimal sensing parameters for each licensed channel with the unique usage characteristic. Simulation shows that using the optimal sensing parameters can maximize the sensing efficiency and satisfy the interference avoidance requirement for protecting the primary users.

Key words: cognitive radio, cooperative spectrum sensing, sensing efficiency, sensing parameters

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Parameters Optimization for Cooperative SpectrumSensing in Cognitive Radio Networks

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