Semitensor Product Compressive Sensing for Big Data Transmission in Wireless Sensor Networks

Table 2

Encryption times for different groups of , . The encryption method is STP-CS, unit ms.

Signal length	Matrix
	1 × 4	1 × 8	4 × 16	4 × 32
256	0.161	0.163	0.172	0.175
512	0.163	0.163	0.171	0.172
1024	0.165	0.168	0.174	0.177
2048	0.166	0.171	0.187	0.195