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September
25, 2012
U.S. Department of Transportation
•Task Goal
•Identify a transmission control protocol for
scalable V2V safety communications
that will preserve the performance of V2V safety applications in both congested as well as
un-congested communication
environments.
•Primary Transmit Test Configurations to
Address the Goal
•Baseline 1 – 10 Hz fixed BSM transmit
rate
•Baseline 2 – 5 Hz fixed BSM transmit
rate
•Algorithm X – Adaptive control of the BSM
transmission rate and transmission
power based on a host vehicle position tracking error estimation and channel utilization
assessment
•Algorithm Y – Adaptive control of the BSM
transmission rate based on reported channel utilization assessments from
neighboring vehicles
and that measured by the host vehicle
V2V SAFETY COMMUNICATIONS SCALABILITY