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Primary system detection for cognitive radio: Does small-scale fading help?
KTH, School of Electrical Engineering (EES).
2007 (English)In: IEEE Communications Letters, ISSN 1089-7798, E-ISSN 1558-2558, Vol. 11, no 10, 799-801 p.Article in journal (Refereed) Published
Abstract [en]

We consider the effect of small-scale fading on the detection of weak signals in cognitive radio systems. We formulate a model for the detection problem taking fading into account, and give the associated likelihood ratio tests. Additionally we give an expression for the asymptotic detection performance and use this to consider the tradeoff between the detection performance and the coherence time and bandwidth of the channel.

Place, publisher, year, edition, pages
2007. Vol. 11, no 10, 799-801 p.
Keyword [en]
cognitive radio, detection
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-37059DOI: 10.1109/LCOMM.2007.070923ISI: 000250290200011Scopus ID: 2-s2.0-36849048776OAI: oai:DiVA.org:kth-37059DiVA: diva2:431940
Available from: 2011-07-27 Created: 2011-07-27 Last updated: 2017-12-08Bibliographically approved

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