International Journal of Information and Communication Technology Research
مجله بین المللی ارتباطات و فناوری اطلاعات
International Journal of Information and Communication Technology Research
Engineering & Technology
http://ijict.itrc.ac.ir
1
admin
2251-6107
2783-4425
doi
1652
25391
en
jalali
1390
6
1
gregorian
2011
9
1
3
3
online
1
fulltext
fa
A Low-Complexity Cyclostationary-Based Detection Method for Cooperative Spectrum Sensing in Cognitive Radio Networks
فناوری اطلاعات
Information Technology
پژوهشي
Research
<p>Fast reliable spectrum sensing (SS) is a crucial problem in the cognitive radio systems. To address this issue, cyclostationarity-based detection methods, which are generally more complex but more reliable than energy detection methods, have been proposed. This paper presents a new method to detect the presence of the second-order cyclostationarity in the OFDM-based primary user (PU) signals. The proposed method has a low computational complexity, while it presents a performance close to the well-known GLRT-based Dandawaté-Giannakis's method. Moreover, since the proposed low-complexity method is robust against the noise uncertainty, it can be a good alternative to the energy detection method. We further propose some cooperative spectrum sensing methods to improve the detection performance. Extensive simulation results confirm the superiority of the proposed schemes.</p>
Cooperative, Cyclostationarity-Based, Low-Complexity Spectrum Sensing, Soft Combination
1
10
http://ijict.itrc.ac.ir/browse.php?a_code=A-10-27-177&slc_lang=fa&sid=1
Hamid
Arezumand
1003194753284600583
1003194753284600583
Yes
Paeiz
Azmi
1003194753284600584
1003194753284600584
No
Hamed
Sadeghi
1003194753284600585
1003194753284600585
No