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Rokaia M. Zaki
Benha University

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Noise Uncertainty Effect on a Modified Two-Stage Spectrum Sensing Technique Heba A.Tag El-Dien; Rokaia M. Zaki; Mohsen M. Tantawy; Hala M. Abdel-Kader
Indonesian Journal of Electrical Engineering and Computer Science Vol 1, No 2: February 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v1.i2.pp341-348

Abstract

Detecting the presence or absence of primary user is the key task of cognitive radio networks. However, relying on single detector reduces the probability of detection and increases the probability of missed detection. Combining two conventional spectrum sensing techniques by integrating their individual features improves the probability of detection especially under noise uncertainty. This paper introduces a modified two-stage detection technique that depends on the energy detection as a first stage due to its ease and speed of detection, and the proposed Modified Combinational Maximum-Minimum Eigenvalue based detection as a second stage under noise uncertainty and comperes it with the case of using Maximum-Minimum Eigenvalue and  Combinational Maximum-Minimum Eigenvalue as a second stage.
Co-Authors Hala M. Abdel-Kader Heba A.Tag El-Dien Mohsen M. Tantawy