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A Comprehensive Investigation on Multi-User Interference Effects in Vehicular Visible Light Communications.

Emmanuel Plascencia1, Hongyu Guan2, Luc Chassagne2

  • 1Oledcomm Company, 78140 Vélizy, France.

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|March 11, 2023
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Summary
This summary is machine-generated.

Vehicular visible light communication (VLC) links suffer from mutual interference, significantly reducing packet delivery. This study highlights the disruptive impact of neighboring VLC links on vehicular platooning, necessitating new multiple-access techniques.

Keywords:
V2VVLCinter-vehicle communicationsmulti-user interferenceoptical interferencevehicle safetyvisible light communication

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Area of Science:

  • Vehicular communication systems
  • Optical wireless communications

Background:

  • Vehicular visible light communication (VLC) is promising for platooning.
  • Existing research often overlooks interference from neighboring VLC links.
  • Dedicated Short Range Communications (DSRC) shows interference impacts packet delivery.

Purpose of the Study:

  • To investigate the effects of mutual interference on vehicle-to-vehicle (V2V) VLC links.
  • To analyze the impact of interference on packet delivery ratio (PDR) in vehicular VLC networks.
  • To emphasize the need for interference mitigation strategies in V2V VLC.

Main Methods:

  • Analytical investigation using simulations.
  • Experimental validation of simulation results.
  • Analysis of multi-user interference effects.

Main Results:

  • Mutual interference from neighboring V2V VLC links is highly disruptive.
  • Packet Delivery Ratio (PDR) can fall below the 90% requirement due to interference.
  • Multi-user interference impacts V2V links even at short distances.

Conclusions:

  • Mutual interference is a critical challenge for vehicular VLC applications.
  • Preventive measures and multiple-access techniques are crucial for reliable V2V VLC.
  • Further research is needed to integrate robust multiple-access techniques into vehicular VLC systems.