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

<div>The difference between noninterfered subcarriers and interfered subcarriers: (a) data collected from antenna 1 and (b) data collected from antenna 2.</div>

Wireless Communications and Mobile Computing

fig4

Figure 4

Figure 4: A Novel Subcarrier-Level Spectrum Sensing Method by Utilizing Fine-Grained Channel State Information in Wireless Networks 