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Interference-Aware Message Forwarding for Vehicular Networks

Interference-Aware Message Forwarding for Vehicular Networks. Centre for Distributed and High Performance Computing. Quincy Tse | PhD Student. Outline. Introduction Vehicular networks Message forwarding Results Conclusion. Everyday, someone dies from car accidents…. In Australia:

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Interference-Aware Message Forwarding for Vehicular Networks

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  1. Interference-Aware Message Forwarding for Vehicular Networks Centre for Distributed and High Performance Computing Quincy Tse | PhD Student

  2. Outline • Introduction • Vehicular networks • Message forwarding • Results • Conclusion

  3. Everyday, someone dies from car accidents… • In Australia: • 1,627 killed in 2005 [1] • 32,777 seriously injured in 2007 [2] • Per capita stats similar in other developed countries Road vehicle traffic—trends in age-standardised rates of serious injury sex and road user group, Australia 2000–01 to 2006–07 [2] [1] Connelly L. and Supangan R., “The economic costs of road traffic crashes: Australia, states and territories”, Accident Analysis & Prevention, vol. 38, no. 6, pp. 1087–1903, 2006. [2] Hanley G. and Harrison J., “Serious injury due to land transport accidents, Australia, 2006–07”, Australian Institute of Health and Welfare, 2009

  4. Vehicular Network – Getting Cars to Communicate Benefits • Advance warning • Status sharing • Packet collision • Shadowing • Limited capacity Problems Will it crash into me? We should stop now!! I should stop now!! I am at (location), going East at 50 km/h I’ve just crashed at (location)

  5. Message Re-broadcasting for Reliability Source AD AG AI Relay

  6. Results

  7. Conclusion • Transmission reliability is important • Shadowing can cause non-reception of messages for safety systems • Cooperative forwarding may work, but introduces interference • Proposed an algorithm and a metric to decide whether to retransmit • Takes into account benefit vs interference • Almost as good • Much less interference

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