The Impact of Sensing Range on Spatial-Temporal Opportunity
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Date
2013-06
Authors
ORCID
Advisor
Referee
Mark
Journal Title
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Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
In this paper, we study the impact of secondary user (SU) sensing range on spectrum access opportunity in cognitive radio networks. We first derive a closed-form ex- pression of spectrum access opportunity by taking into ac- count the random variations in number, locations and trans- mitted powers of primary users (PUs). Then, we show how SU sensing range affects spectrum access opportunity, and the tradeoff between SU sensing range and spectrum ac- cess opportunity is formulated as an optimization problem to maximize spectrum access opportunity. Furthermore, we prove that there exists an optimal SU sensing range which yields the maximum spectrum access opportunity, and nu- merical results validate our theoretical analysis.
Description
Citation
Radioengineering. 2013, vol. 22, č. 2, s. 558-563. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2013/13_02_0558_0563.pdf
http://www.radioeng.cz/fulltexts/2013/13_02_0558_0563.pdf
Document type
Peer-reviewed
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Published version
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en