TR2009-065

Receive Power-Based Prioritized Rebroadcasting for V2V Safety Message Dissemination


Abstract:

Rapidly and robustly disseminating safety messages is an important goal for vehicle-to-vehicle communications. When multiple vehicles receive an alert message, packet collisions may occur if they rebroadcast the message simultaneously. Due to the broadcast nature of safety messages, acknowledgement on the reception of packets is difficult, and such collision leads to non-recoverable failed delivery. The proposed Receive Power-Based Prioritized Rebroadcast (RPPR) scheme (1) minimizes the probability of packet collision during rebroadcast, and (2) maximizes the probability that a vehicle that is furthest away from the source rebroadcasts an alert message first. This improves robustness and minimizes the packet delivery time.

 

  • Related News & Events

    •  NEWS    ITS 2009: 2 publications by Philip V. Orlik, Jinyun Zhang, Jianlin Guo and others
      Date: September 21, 2009
      Where: World Congress and Exhibition on Intelligent Transport Systems and Services (ITS)
      MERL Contacts: Jinyun Zhang; Philip V. Orlik; Jianlin Guo
      Brief
      • The papers "Receive Power-Based Prioritized Rebroadcasting for V2V Safety Message Dissemination" by Yim, M.H.R., Guo, J., Orlik, P.V. and Zhang, J. and "Fast Handover Between WiMAX and WiFi Networks in Vehicular Environment" by Guo, J., Yim, M.H.R., Tsuboi, T. and Zhang, J. were presented at the World Congress and Exhibition on Intelligent Transport Systems and Services (ITS).
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