Table 4 Performance evaluation of target detection with measurements related to a single and double target moving along the main LOS path (connecting TX and RX2); both space- and frequency-domain correlation methods with optimized thresholds are employed
Method using optimized thresholds | Sensitivity | Specificity | Accuracy | FPR |
|---|---|---|---|---|
Frequency-domain CSI correlation \(\phantom {\dot {i}\!}\mathbf {r_{\mathrm {\mathit {t,\ell _{j}}}}}\)) | 0.89 | 0.78 | 0.88 | 0.2 |
Space-domain CSI correlation \(\phantom {\dot {i}\!}\mathbf {r_{\mathrm {\mathit {t,f_{k}}}}}\)) | 0.93 | 0.83 | 0.92 | 0.16 |