Title
A Class of Spectrum-Sensing Schemes for Cognitive Radio Under Impulsive Noise Circumstances: Structure and Performance in Nonfading and Fading Environments
Abstract
In this paper, we propose a class of spectrum-sensing schemes for cognitive radio with receive diversity. By employing the generalized likelihood ratio test (GLRT) in the detectors on the antenna branches and exploiting a nonlinear diversity-combining strategy, the proposed scheme exhibits better performance than conventional schemes in various fading and noise environments. Exact expressions of the detection and false-alarm probabilities of the proposed scheme are derived in nonfading and Nakagami fading channels with Gaussian noise. Through computer simulations, it is confirmed that the proposed scheme provides a significant performance gain over conventional schemes in impulsive noise environments.
Year
DOI
Venue
2010
10.1109/TVT.2010.2068066
IEEE T. Vehicular Technology
Keywords
Field
DocType
impulsive noise,nakagami fading channels,diversity reception,nakagami channels,impulse noise,cognitive radio,nonfading environment,nonlinear diversity combining,receive diversity,gaussian noise,cognitive radio (cr),spectrum sensing,generalized likelihood ratio test,diversity combining,computer simulation,detectors,fading
Antenna (radio),Background noise,Computer science,Fading,Diversity combining,Electronic engineering,Impulse noise,Constant false alarm rate,Gaussian noise,Cognitive radio
Journal
Volume
Issue
ISSN
59
9
0018-9545
Citations 
PageRank 
References 
16
0.80
20
Authors
4
Name
Order
Citations
PageRank
Hyun Gu Kang1434.39
Iickho Song255885.31
Seok-Ho Yoon325647.78
Yun Hee Kim424732.95