Performance Analysis of Spectrum Sensing With Multiple Status Changes in Primary User Traffic

Details Performance Analysis of Spectrum Sensing With Multiple Status Changes in Primary User Traffic Performance Analysis of Spectrum Sensing With Multiple Status Changes in Primary User Traffic

2012-04-11

arxiv.org/abs/1204.2428v1

Computer Science

Information Theory

4 pages, 4 figures, accepted by IEEE Communications Letters

Scientific paper

In this letter, the impact of primary user traffic with multiple status changes on the spectrum sensing performance is analyzed. Closed-form expressions for the probabilities of false alarm and detection are derived. Numerical results show that the multiple status changes of the primary user cause considerable degradation in the sensing performance. This degradation depends on the number of changes, the primary user traffic model, the primary user traffic intensity and the signal-to-noise ratio of the received signal. Numerical results also show that the amount of degradation decreases when the number of changes increases, and converges to a minimum sensing performance due to the limited sensing period and primary holding time.

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