1, we study the collaborative sensing as a means
to improve the performance of the proposed spectrum sensing
technique and show their effect on cooperative cognitive radio
network. Specifically, we will present the performance evaluation
and advantages of this method and propose an optimization
method that compute only the first dominates eigenvalues in
order to reduce the complexity of the proposed cooperative spectrum
sensing algorithm. Simulations results and performances
evaluation presented in this paper are based on experimental
measurements captured by Eurecom RF Agile Platform.
Recently, a new blind spectrum sensing technique
based on signal space dimension estimation was developed for
sensing the spectrum holes in the primary user’s bands. The
mean idea of this technique is that the number of significant
eigenvalues of the covariance matrix of the received signal is
directly related to the presence/absence of data in the signal.
In this paper
