Deep Learning-Based Channel Reciprocity Learning for Physical Layer Secret Key Generation

Table 2

NIST statistical test suite results in different scenarios with the quantization factor of 0.01.

Scenario	Indoor static	Indoor mobile	Outdoor static	Outdoor mobile
Approximate entropy	0.798	0.815	0.861	0.854
Cumulative sums	0.497	0.862	0.747	0.903
DFT	0.466	0.524	0.610	0.583
Frequency	0.451	0.779	0.605	0.822
Ranking	0.375	0.416	0.379	0.471
Runs	0.837	0.605	0.481	0.524
Serial	0.316	0.523	0.877	0.901
	0.452	0.506	0.708	0.924