A bibliometric Analysis on Spectrum Sensing in Wireless Networks

Spectrum scarcity is a prevalent problem in wireless networks due to the strict allotment of the spectrum (frequency bands) to licensed users by network regulatory bodies. Such an operation implies that the unlicensed users (secondary wireless spectrum users) have to evacuate the spectrum when the p...

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Veröffentlicht in:arXiv.org
Hauptverfasser: Nyashadzashe Tamuka, Sibanda, Khulumani
Format: Paper
Sprache:Englisch
Veröffentlicht: Ithaca Cornell University Library, arXiv.org 30.09.2023
Schlagworte:
Background noise
Bibliometrics
Cognitive radio
Frequencies
Machine learning
Matched filters
Optimization
Signal to noise ratio
Wireless networks
ISSN:2331-8422
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Abstract Spectrum scarcity is a prevalent problem in wireless networks due to the strict allotment of the spectrum (frequency bands) to licensed users by network regulatory bodies. Such an operation implies that the unlicensed users (secondary wireless spectrum users) have to evacuate the spectrum when the primary wireless spectrum users (licensed users) are utilizing the frequency bands to avoid interference. Cognitive radio alleviates the spectrum shortage by detecting unoccupied frequency bands. This reduces the underutilization of frequency bands in wireless networks. There have been numerous related studies on spectrum sensing, however, few studies have conducted a bibliometric analysis on this subject. The goal of this study was to conduct a bibliometric analysis on the optimization of spectrum sensing. The PRISMA methodology was the basis for the bibliometric analysis to identify the limitations of the existing spectrum sensing techniques. The findings revealed that various machine learning or hybrid models outperformed the traditional techniques such as matched filter and energy detectors at the lowest signal to noise ratio (SNR). SNR is the ratio of the desired signal magnitude to the background noise magnitude. This study, therefore, recommends researchers propose alternative techniques to optimize (improve) spectrum sensing in wireless networks. More work should be done to develop models that optimize spectrum sensing at low SNR.
AbstractList Spectrum scarcity is a prevalent problem in wireless networks due to the strict allotment of the spectrum (frequency bands) to licensed users by network regulatory bodies. Such an operation implies that the unlicensed users (secondary wireless spectrum users) have to evacuate the spectrum when the primary wireless spectrum users (licensed users) are utilizing the frequency bands to avoid interference. Cognitive radio alleviates the spectrum shortage by detecting unoccupied frequency bands. This reduces the underutilization of frequency bands in wireless networks. There have been numerous related studies on spectrum sensing, however, few studies have conducted a bibliometric analysis on this subject. The goal of this study was to conduct a bibliometric analysis on the optimization of spectrum sensing. The PRISMA methodology was the basis for the bibliometric analysis to identify the limitations of the existing spectrum sensing techniques. The findings revealed that various machine learning or hybrid models outperformed the traditional techniques such as matched filter and energy detectors at the lowest signal to noise ratio (SNR). SNR is the ratio of the desired signal magnitude to the background noise magnitude. This study, therefore, recommends researchers propose alternative techniques to optimize (improve) spectrum sensing in wireless networks. More work should be done to develop models that optimize spectrum sensing at low SNR.
Author Nyashadzashe Tamuka
Sibanda, Khulumani
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SubjectTerms Background noise
Bibliometrics
Cognitive radio
Frequencies
Machine learning
Matched filters
Optimization
Signal to noise ratio
Wireless networks
Title A bibliometric Analysis on Spectrum Sensing in Wireless Networks
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