Title :
An Eigenvalue and superposition approach based cooperative spectrum sensing in cognitive radio networks
Author :
Miah, Md Sipon ; Rahman, Md Mamunur
Author_Institution :
Dept. of Inf. & Commun. Eng., Islamic Univ., Kushtia, Bangladesh
Abstract :
In this paper, we propose an Eigenvalue and superposition approach based cooperative spectrum sensing scheme: firstly, we calculated the Eigenvalue from the received autocorrelation matrix and secondly, the reporting time is utilized to increase the number of smoothing factors for autocorrelation calculation. In addition, we define optimization problem in smoothing factors with reserved higher detection probability. Simulation results show that the proposed scheme has better detection probability while requiring less sensing time as compared with both the conventional Energy detection (ED) and Eigenvalue-based detection (EVD) scheme.
Keywords :
cognitive radio; cooperative communication; eigenvalues and eigenfunctions; matrix algebra; optimisation; probability; radio spectrum management; signal detection; ED; EVD; cognitive radio networks; detection probability; eigenvalue based cooperative spectrum sensing; eigenvalue-based detection scheme; energy detection; optimization problem; received autocorrelation matrix; smoothing factors; superposition approach based cooperative spectrum sensing; Cognitive radio; Correlation; Covariance matrices; Eigenvalues and eigenfunctions; Noise; Sensors; Smoothing methods; cognitive radio network; eigenvalue-based detection; energy detection; spectrum sensing; superposition approach;
Conference_Titel :
Electrical Engineering and Information & Communication Technology (ICEEICT), 2014 International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4799-4820-8
DOI :
10.1109/ICEEICT.2014.6919028
