Research Article
Secure and Smartphone-Assisted Reprogramming for Wireless Sensor Networks Based on Visible Light Communication
Figure 3
Modulation comparison: OOK modulation; Dual Header-Pulse Interval Modulation; Compressing Dual Header-Pulse Interval Modulation.
(a) DH-PIM, , and : “0100” |
(b) DH-PIM, , and : “1011” |
(c) Three modulations comparison. bit series: “0011 1001 1001 1001” |