DocumentCode
61706
Title
On Approximating the Cognitive Radio Aggregate Interference} IEEEaftertitletextvspace{-1baselineskip
Author
Kusaladharma, Sachitha ; Tellambura, Chintha
Author_Institution
Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada T6G 2V4
Volume
2
Issue
1
fYear
2013
fDate
Feb-13
Firstpage
58
Lastpage
61
Abstract
The aggregate interference caused on a primary receiver by Cognitive Radio (CR) nodes distrbuted uniformly in an annular region around it is investigated, assuming Rayleigh fading and path loss. By approximating the aggregate interference with that caused by the nearest CR interferer, the exact analytical moment generating function for the nearest interferer is derived for cases of no power control and distance based power control. The outage probability based on the approximation is derived, which is a tight lower bound under certain conditions.
Keywords
Aggregates; Approximation methods; Cognitive radio; Fading; Interference; Power control; Probability density function; Cognitive radio; aggregate interference; nearest interferer; outage probability;
fLanguage
English
Journal_Title
Wireless Communications Letters, IEEE
Publisher
ieee
ISSN
2162-2337
Type
jour
DOI
10.1109/WCL.2012.101812.120671
Filename
6338985
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