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Energy aware resource association in RIS assisted VLC-RF communication network.

Ashu Taneja1, Ali Alqahtani2, Nayef Alqahtani3

  • 1Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, India.

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|July 22, 2025
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Summary
This summary is machine-generated.

This study introduces a hybrid visible light communication (VLC) and radio frequency (RF) network using optical reconfigurable intelligent surfaces (ORISs). The integrated system enhances communication reliability and reduces power consumption for intelligent devices.

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Area of Science:

  • Wireless Communication
  • Optical Networking
  • Intelligent Surfaces

Background:

  • Increasing demand for reliable communication from intelligent devices and data-intensive applications burdens traditional radio frequency (RF) systems due to limited spectrum and congestion.
  • Visible Light Communication (VLC) offers a broader spectrum and high-speed data transmission, but faces challenges with finite coverage and blockages.

Purpose of the Study:

  • To present an integrated VLC-RF communication network enhanced with Optical Reconfigurable Intelligent Surfaces (ORISs) and an RF RIS.
  • To propose a resource association algorithm for optimizing ORIS deployment and power allocation in the hybrid network.

Main Methods:

  • Development of a hybrid VLC-RF communication model incorporating ORISs and an RF RIS.
  • Proposal of a resource association algorithm to link ORISs with VLC access points and node pairs.
  • Evaluation of power allocation strategies and their impact on system performance.

Main Results:

  • The hybrid system model achieved a sum rate gain of 9.43% with equal power allocation.
  • The proposed association scheme led to a 12.74% improvement in total power consumption.
  • ORISs effectively mitigate VLC's coverage limitations and blockage susceptibility.

Conclusions:

  • The integrated VLC-RF network with ORISs provides a robust solution to overcome the limitations of traditional wireless communication.
  • The proposed resource association algorithm and power allocation strategy significantly enhance system efficiency and reduce power consumption.
  • This hybrid approach offers a promising direction for future high-performance wireless communication networks.