Table 1 Measured BER performance when employing mixed chaotic patterns and only focusing patterns, where the transmitter sends bitstreams containing \(3\times {10}^{3}\) samples and the receivers are located at azimuthal deviations of 0°, ±20° and ±40°, respectively, relative to the legitimate user
From: Chaotic information metasurface for direct physical-layer secure communication
Experimental Settings | Measured BER in Different Positions (%) | ||||||
|---|---|---|---|---|---|---|---|
Tx | Legitimate Rx | φ = −40° | φ = −20° | φ = 0° | φ = 20° | φ = 40° | |
(1.15 m, 0°, 0 m) | (3 m, 0°, −0.34 m) | Only focusing patterns | 0 | 0 | 0 | 0 | 0 |
Mixed chaotic patterns | 46.9 | 26.9 | 0 | 22.7 | 22.4 | ||
(0.75 m, 0°, −0.57 m) | (3 m, 0°, 0 m) | Only focusing patterns | 0 | 0 | 0 | 0 | 0 |
Mixed chaotic patterns | 17.8 | 17.1 | 2.8 | 35.7 | 17.8 | ||
