Effect of Correlations on the Performance of GLRT Detector in Cognitive Radios
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概要
- 論文の詳細を見る
The sensing scheme based on the generalized likelihood ratio test (GLRT) technique has attracted a lot of research interest in the field of cognitive radios (CR). Although its potential advantages in detecting correlated primary signal have been illustrated in prior work, no theoretical analysis of the positive effects of the correlation has appeared in the literature. In this letter, we derive the theoretical false-alarm and detection probabilities of GLRT detector. The theoretical analysis shows that, in the low signal-to-noise ratio (SNR) region, the detectors performance can be improved by exploiting the high correlations between the primary signal samples. The conclusions of the analysis are verified by numerical simulation results.
- 2011-04-01
著者
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ZHU Pengcheng
National Mobile Communications Research Laboratory, Southeast University
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Zhu Pengcheng
Docomo Beijing Communications Laboratories Co. Ltd.
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CAO Xiuying
National Mobile Communications Research Laboratory, Southeast University
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Cao Xiuying
National Mobile Communications Research Laboratory Southeast University
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Chen Hongyang
Institute of Industrial Science, The University of Tokyo
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Chen Hongyang
Institute Of Industrial Science The University Of Tokyo
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Zhu Pengcheng
National Mobile Communications Research Laboratory Southeast University
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Yang Xi
National Mobile Communications Research Laboratory Southeast University
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PENG Shengliang
National Mobile Communications Research Laboratory, Southeast University
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Peng Shengliang
National Mobile Communications Research Laboratory Southeast University
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Zhu Pengcheng
National Mobile Communications Research Laboratory (ncrl) Southeast University
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