Research Article
Secure Multiusers Directional Modulation Scheme Based on Random Frequency Diverse Arrays in Broadcasting Systems
Figure 8
The BER comparison for different DM schemes versus : (a) 1st LU; (b) 2nd LU; (c) 3rd LU; (d) 4th LU.
(a) |
(b) |
(c) |
(d) |