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 |