International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 62 - Number 3 |
Year of Publication: 2013 |
Authors: Rohitha Ujjinimatad, Siddarama R Patil |
10.5120/10063-4658 |
Rohitha Ujjinimatad, Siddarama R Patil . Sensing Algorithm for Cognitive Radio Networks based on Random Data Matrix. International Journal of Computer Applications. 62, 3 ( January 2013), 32-37. DOI=10.5120/10063-4658
Signal detection is a fundamental problem in Cognitive radio. In this paper a new statistical test is proposed based on random data matrix (RDM) for detecting the signals in noise, as opposed to the eigenvalue based tests. Among the many spectrum sensing methods, the RDM method detects the primary users without any prior information. The performance of the test is compared with energy detection (ED), covariance absolute value (CAV) and eigenvalue based algorithms through simulation analysis. This sensing algorithm can be used for very low SNR signal detection without requiring the knowledge of signal, channel and noise. Simulations are based on wireless microphone and identically and independently distributed (iid) signals.