LTE CommSense for Object Detection in Indoor Environment Figure 3. CSI extracted from the LTE channel estimator block for four fading channel models. Table 2. LTE CommSense Performance Accuracy and Corresponding Confusion Matrix for Different SNR Values SNR (dB) Accuracy (%) −7 73 −6 −5 −4 50 84 88.5 94 SNR (dB) Confusion Matrix 35 5 10 0 0 43 7 0 0 1 −3 Accuracy (%) 50 0 0 0 0 0 50 0 0 50 0 0 0 50 0 20 11 18 0 2 1 47 47 1 2 0 50 0 0 0 0 47 3 0 0 50 0 0 0 0 50 0 0 0 50 0 0 18 8 24 0 0 0 50 49 0 1 0 50 0 0 0 0 47 3 0 0 50 0 0 0 0 50 0 0 0 50 0 0 13 6 31 0 0 0 50 49 0 1 0 50 0 0 0 0 49 1 0 0 50 0 0 0 0 50 0 0 0 50 0 0 7 3 40 0 0 0 50 −2 −1 0 IEEE A&E SYSTEMS MAGAZINE 98.5 Confusion Matrix 100 100 100 JULY 2018