DocumentCode
2614327
Title
Pseudo BER Based SNR Estimation for Energy Detection Scheme in Cognitive Radio
Author
Tian, Tian ; Iwai, Hisato ; Sasaoka, Hideichi
Author_Institution
Grad. Sch. of Eng., Doshisha Univ., Kyotanabe, Japan
fYear
2012
fDate
6-9 May 2012
Firstpage
1
Lastpage
5
Abstract
In this paper, an energy detection scheme based on the pseudo bit error rate (BER) estimation is investigated. In the proposed scheme, the basic strategy is to use the pseudo BER to estimate the signal-noise-ratio (SNR) of primary signal for energy detection at the cognitive users. Threshold and sensing length are updated with the estimated SNR afterward. We have shown that this modified energy detector outperforms traditional energy detector with the noise uncertainty and reliably alleviate the SNR wall effect.
Keywords
cognitive radio; error statistics; signal detection; SNR wall effect; cognitive radio; cognitive users; energy detection scheme; modified energy detector; noise uncertainty; primary signal; pseudoBER-based SNR estimation; pseudobit error rate estimation; sensing length; Bit error rate; Estimation; Sensors; Signal to noise ratio; Uncertainty;
fLanguage
English
Publisher
ieee
Conference_Titel
Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th
Conference_Location
Yokohama
ISSN
1550-2252
Print_ISBN
978-1-4673-0989-9
Electronic_ISBN
1550-2252
Type
conf
DOI
10.1109/VETECS.2012.6240226
Filename
6240226
Link To Document