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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.
Sensors (Basel, Switzerland)
|March 11, 2023
Summary
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.
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.
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