A Novel Subcarrier-Level Spectrum Sensing Method by Utilizing Fine-Grained Channel State Information in Wireless Networks

<div>The initial state variations collected from different scenarios: (a) data from subcarrier 19 in indoor deployment and (b) data from subcarrier 19 in the outdoor deployment.</div>

Wireless Communications and Mobile Computing

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Figure 7

Figure 7: A Novel Subcarrier-Level Spectrum Sensing Method by Utilizing Fine-Grained Channel State Information in Wireless Networks 