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New Multiple Antennas Method based Energy Detector for Cognitive Radio over Fading Channels
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 52 - Number 5 |
| Year of Publication: 2012 |
| Authors: Mahmood A. Abdulsattar, Zahir A. Hussein |
10.5120/8198-1588
|
Mahmood A. Abdulsattar, Zahir A. Hussein . New Multiple Antennas Method based Energy Detector for Cognitive Radio over Fading Channels. International Journal of Computer Applications. 52, 5 ( August 2012), 20-25. DOI=10.5120/8198-1588
Abstract
In this paper we presented a DSP processor to be used as a baseband energy detectorbased spectrum sensingfor cognitive radio (CR) under fading channels. We Derived expression for the average probability of detection over Rayleigh fading channels in easiest form and Nakagami-m channels with no diversity. Novelties of this work came from proposing a multiple antennas signal detection technique for spectrum sensing in a multipath fading environment. Without involving the sampling theorems and the accompanying approximation, we derive closed-form expressions for the probability of detection and false alarm over an additive white Gaussian noise (AWGN) channels for the proposed method. The proposed technique is a low complexity scheme by using two energy detectors and not need prior information about the channel gain in comparison with other methods.
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