Segment index encryption scheme based on the memristor for W-band wireless reflective communication

Area of Science:

• Electrical Engineering
• Information Security
• Applied Physics

Background:

• W-band wireless communication systems face physical layer security challenges.
• Expanding the application scope requires robust security solutions.
• Memristor technology offers potential for advanced security applications.

Purpose of the Study:

• To propose a novel segment index encryption scheme for W-band wireless reflective communication.
• To enhance the physical layer security of W-band systems using memristor-based hyperchaotic models.
• To experimentally validate the proposed encryption scheme's performance and security.

Main Methods:

• Constructing a nonlinear three-dimensional hyperchaotic model using a memristor.
• Generating chaotic sequences for segment initial position indexing, length determination, XOR encryption, and scrambling.
• Employing a decision-making approach at the receiver to optimize bit error rate (BER).
• Experimentally verifying signal transmission over 10 m (straight and reflective).

Main Results:

• The proposed scheme achieves a minimum BER of 2.23 × 10^-6 (straight) and 8.47 × 10^-6 (reflective) at optimal power distribution ratio (PDR=4).
• Encrypted signals show improved input optical power (IOP) sensitivity (0.4 dB straight, 0.7 dB reflective) and a large key space (up to 10⁹³).
• Transmission rates reach 30 Gb/s (straight) and 20 Gb/s (reflective) under HD-FEC thresholds.

Conclusions:

• The memristor-based encryption scheme provides secure and robust data transmission for W-band wireless reflective communication.
• The system demonstrates resilience against eavesdropping and interference, suitable for complex environments.
• This solution enhances data integrity for applications like urban pipeline communication and intelligent transportation.