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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Physical-Layer Security in Power-Domain NOMA Based on Different Chaotic Maps.

Mariam Abu Al-Atta1, Karim A Said2, Mohamed A Mohamed2

  • 1Electronics and Communications Department, Faculty of Engineering, Delta University for Science and Technology, Gamsaa 35712, Egypt.

Entropy (Basel, Switzerland)
|January 21, 2023
PubMed
Summary

This study introduces a chaotic downlink NOMA (C-DL-NOMA) system to enhance data security in wireless networks. The novel approach effectively secures user data against unauthorized access, outperforming traditional NOMA systems.

Keywords:
Arnold’s cat mapHénon mapchaosdecryptiondownlinkencryptionhyperchaotic DNAlogistic mapnonorthogonal multiple accessphysical-layer securitypower domain

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Area of Science:

  • Telecommunications Engineering
  • Cybersecurity
  • Applied Mathematics

Background:

  • Nonorthogonal multiple access (NOMA) is crucial for next-generation wireless networks, demanding high connectivity and stability.
  • Increasing user connectivity raises critical concerns regarding user data security.
  • Chaotic communication systems offer physical-layer security solutions for enhanced data protection.

Purpose of the Study:

  • To propose and evaluate a chaotic downlink NOMA (C-DL-NOMA) system for improved security in additive white Gaussian noise and Rayleigh-fading channels.
  • To enhance the security of downlink NOMA systems against potential data breaches.

Main Methods:

  • A coherent analog modulation technique combining chaotic maps for data encryption.
  • Chaotic encryption at the transmitter with fixed power allocation.
  • Successive interference cancellation demodulation and chaotic decryption at the receiver.

Main Results:

  • The proposed C-DL-NOMA system demonstrated superior security performance compared to unencrypted NOMA systems.
  • Statistical analyses (histogram, correlation, information entropy) confirmed enhanced data security.
  • Bit-error-rate and achievable data rate performance were evaluated.

Conclusions:

  • The C-DL-NOMA system effectively enhances the physical-layer security of downlink NOMA networks.
  • The integration of chaotic maps provides a robust method for data encryption and decryption.
  • The proposed system offers a promising solution for secure wireless communication in next-generation networks.