A Selective Flooding Method for Propagating Emergency Messages in Vehicle Safety Communications

An intelligent vehicle safety system can be constructed by exchanging emergency-related information between any unrelated vehicles, such as urgency stop, traffic accident, and obstacles. In the most of vehicle safety communication applications, an emergency message is propagated in the form of broad...

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Bibliographic Details
Main Authors: Yu, Sukdea, Cho, Gihwan
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
Broadcasting
Communications
Delay effects
Driver circuits
Emergency Message
Floods
Least Common
Neighbor
Protocols
Relays
Road accidents
Road vehicles
Selective Flooding
Vehicle safety
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Summary:An intelligent vehicle safety system can be constructed by exchanging emergency-related information between any unrelated vehicles, such as urgency stop, traffic accident, and obstacles. In the most of vehicle safety communication applications, an emergency message is propagated in the form of broadcasting. However, it causes a lot of problems in terms of efficiency due to the multi-hop propagation and radio collision problems. This paper presents a selective message forwarding method by assigning a defer time based on the number of the common neighbors. With benefit of this method, only selected vehicles perform a re-broadcasting the received emergency event among the vehicles included in the same wireless coverage. Moreover, the proposed scheme improves the efficiency of message transmission with the selective assignment of priority for forwarding message. To analyze its performance, it has been evaluated by network simulator.
DOI:10.1109/ICHIT.2006.253661