DocumentCode :
2834741
Title :
The impact of overlap regions in cognitive radio networks
Author :
Minh Thao Quach ; Khalife, Hicham
Author_Institution :
LaBRI, Univ. Bordeaux 1, Bordeaux, France
fYear :
2012
fDate :
21-23 Nov. 2012
Firstpage :
1
Lastpage :
3
Abstract :
In this paper, we evaluate the impact of cognitive radio transmissions on primary radio communications. Our objective is to characterize precisely, based on the position of secondary users, the vulnerability areas where interference to primary radios can be generated. To do so, we detail all the cases where overlap regions between primary and secondary transmitters exist and derive the vulnerability area for each case. Through OMNeT++ simulations, we illustrate that there is a dependency between the size of the overlap area and the impact on the primary receivers: the smaller the overlap region, the smaller the impact on the receivers in this area. Furthermore, an efficient channel selection by cognitive radios can reduce by 40% the interference observed on primary receivers.
Keywords :
cognitive radio; interference suppression; radio networks; channel selection; cognitive radio networks; cognitive radio transmissions; primary receivers; radio communications; secondary transmitters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Days (WD), 2012 IFIP
Conference_Location :
Dublin
ISSN :
2156-9711
Print_ISBN :
978-1-4673-4402-9
Electronic_ISBN :
2156-9711
Type :
conf
DOI :
10.1109/WD.2012.6402851
Filename :
6402851
Link To Document :
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