A Framework for Human Activity Recognition Based on WiFi CSI Signal Enhancement

Table 2

Accuracy of different activities in each experimental scenario.

Scenarios	Approach	Bend	Call	Clap	Drink	Sit	Squat	Walk	Wave
Empty room	Raw signal	93.63	96.46	88.38	88.81	93.78	89.74	98.76	87.49
	NISE	96.94	99.46	92.09	92.42	98.63	90.58	100	97.74
	PSE	96.63	98.98	91.33	91.48	97.83	91.20	100	96.04
Meeting room	Raw signal	90.09	89.37	91.57	91.26	92.56	94.49	93.90	92.76
	NISE	95.07	95.37	95.02	98.30	96.39	98.59	100	99.35
	PSE	92.91	95.17	92.75	97.96	98.51	99.20	100	99.49
Research room	Raw signal	81.08	82.18	80.52	80.58	81.78	82.88	86.59	83.35
	NISE	96.30	91.60	94.37	92.38	99.10	97.68	99.10	89.01
	PSE	94.28	90.77	91.84	92.22	98.84	99.11	98.96	91.10