Location based spectrum sensing evaluation in cognitive radio networks

<p>Abstract</p> <p>This letter addresses the problem of spectrum sensing over fading channel, in which a licensee and multiple unlicensed users coexist and operate in the licensed channel in a local area. We derive the overall average probabilities of detection and false alarm by j...

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Bibliographic Details
Main Authors: Yao Haipeng, Zhao Chenglin, Zhou Zheng
Format: Article
Language:English
Published: SpringerOpen 2011-01-01
Series:EURASIP Journal on Wireless Communications and Networking
Subjects:
Online Access:http://jwcn.eurasipjournals.com/content/2011/1/74
Description
Summary:<p>Abstract</p> <p>This letter addresses the problem of spectrum sensing over fading channel, in which a licensee and multiple unlicensed users coexist and operate in the licensed channel in a local area. We derive the overall average probabilities of detection and false alarm by jointly taking the fading and the location of SUs into account and employing the energy detection as the underlying detection scheme. Furthermore, we develop a statistical model of cumulate interference by the help of the overall average probabilities of detection. Based on the cumulate interference, we also obtain a closed-form expression of outage probability at the primary user's receiver according to a specific distribution of the fading.</p>
ISSN:1687-1472
1687-1499