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Deep Reinforcement Learning Based Intelligent Reflecting Surface Assisted Secure Hybrid Visible Light and Millimeter Wave Communications

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submitted on 2025-06-18, 11:36 and posted on 2025-06-18, 11:39 authored by Danya A. A. Saifaldeen

In the contemporary era of constant connectivity and increasing data demands, ensuring secure, efficient, and reliable wireless communications is crucial. This dissertation addresses the integration of millimeter waves (mmWaves) and Visible Light Communication (VLC) technologies, coupled with recent advancements in Physical Layer Security (PLS) domain. The research employs Intelligent Reflective Surfaces (IRS) to improve the confidentiality, performance, and reliability of the wireless network. Furthermore, the study incorporates the Deep Deterministic Policy Gradient (DDPG) method from Deep Reinforcement Learning (DRL) to optimize the system’s Secrecy Capacity (SC) comprehensively. The integration of IRS into the hybrid system adds a layer of dynamic security, enabling dynamic control of the communication environment and providing innovative ways to enhance security without depending on traditional security protocols. The DDPG method is introduced to determine the optimal SC of the system. This DRL approach enables the system to adapt its security protocols in real-time scenarios, responding to environmental dynamics and potential threats.

Additionally, the DDPG algorithm can adapt to channel variations and high-dimensional factors. Furthermore, the algorithm will intelligently select the optimal technique to improve SC, whether VLC or mmWaves, while allowing efficient power management. Integrating mmWave and VLC technologies with advancements in PLS, IRS, and DDPG provides a robust strategy for optimizing the security of the proposed wireless transmissions. The results of this thesis, through a theoretical framework and comprehensive simulations, contribute to the development of secure, efficient, and resilient future wireless communication networks that are capable of meeting the demands of modern connectivity.

History

Language

  • English

Publication Year

  • 2024

License statement

© The author. The author has granted HBKU and Qatar Foundation a non-exclusive, worldwide, perpetual, irrevocable, royalty-free license to reproduce, display and distribute the manuscript in whole or in part in any form to be posted in digital or print format and made available to the public at no charge. Unless otherwise specified in the copyright statement or the metadata, all rights are reserved by the copyright holder. For permission to reuse content, please contact the author.

Institution affiliated with

  • Hamad Bin Khalifa University
  • College of Science and Engineering - HBKU

Degree Date

  • 2024

Degree Type

  • Doctorate

Advisors

Mohamed M. Abdallah | Khalid Qaraqe

Committee Members

Saif Alkuwari | Roberto Baladacci |Gabriele Oligeri | Hussain Alnuweiri

Department/Program

College of Science and Engineering

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