Chen, Yunfei (2008) Optimum number of secondary users in collaborative spectrum sensing considering resources usage efficiency. IEEE Communications Letters, Vol.12 (No.12). pp. 877-879. doi:10.1109/LCOMM.2008.081331

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Abstract

The optimum number of secondary users in collaborative spectrum sensing is derived for lognormal shadowing channels, static additive white Gaussian noise channels and Rayleigh fading channels, when the efficiency of resources usage is considered in the system design. By weighting the detection performance and the usage efficiency in a target function that is maximized with respect to the number of secondary users, it is shown that the optimum number of secondary users decreases when the weighting coefficient of the usage efficiency increases, the sample correlation increases, or the SNR increases.

Item Type:	Journal Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Cognitive radio networks, Spectrum analyzers
Journal or Publication Title:	IEEE Communications Letters
Publisher:	IEEE
ISSN:	1089-7798
Official Date:	December 2008
Dates:	Date Event December 2008 Published
Volume:	Vol.12
Number:	No.12
Number of Pages:	3
Page Range:	pp. 877-879
DOI:	10.1109/LCOMM.2008.081331
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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