01553423

Component

https://doi.org/10.3141/2489-07

In vehicular ad hoc networks, it is important to broadcast time-sensitive and event-driven warning messages to vehicles. To improve traffic safety, a robust and efficient dissemination protocol is proposed for vehicle-to-vehicle communication aimed at supporting the dissemination of event-driven warning messages to approaching vehicles in an emergency situation. The objective is to minimize the number of rebroadcasting transmissions while simultaneously achieving low transmission latency and reducing redundant messages. To guarantee efficiency, the scheme time parameters are designed according to the mobility and the number information of neighboring vehicles. To guarantee robustness, the message dissemination performance of multiple vehicles is analyzed under various traffic conditions. Simulation studies are conducted with the ns-2.35 network simulation, and the robust and efficient dissemination protocol and two existing protocols (Flood, DV-CAST) are compared in transmission latency, delivery ratio, and total packets transmitted.

01595098

15-4752

English

pp 57–65

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369572

Print

Figures (5) ; References (35) ; Tables (2)

Broadcasting; Computer network protocols; Emergencies; Information dissemination; Traffic incidents; Vehicle to vehicle communications; Vehicular ad hoc networks; Warning systems

Robustness; Warning messages

Data and Information Technology; Highways; Operations and Traffic Management; Safety and Human Factors

TRIS, TRB, ATRI

Dec 30 2014 1:34PM

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