Table 1 Chaos-based communication systems comparison
System | Energy saving | Spectral efficiency | Security level | Reference signal required | Permutation required | Mode of bit transmission for each reference signal |
|---|---|---|---|---|---|---|
SR-PI-DCSK | High | High | High | No | Yes | Multiple |
DCSK | No | Low | Low | Yes | No | Single |
CDSK | No | Low | Moderate | Yes | No | Single |
HE-DCSK | Moderate | Low | Moderate | Yes | No | Dual |
TR-DCSK | Moderate | Moderate | Moderate | Yes | Yes | Single |