Reliable packet delivery protocol for geocast protocol in...

Details Reliable packet delivery protocol for geocast protocol in... Reliable packet delivery protocol for geocast protocol in...

2008-09-05

2011-11-15

Lee, Benjamin C (Department: 2612)

Communications: electrical

External condition vehicle-mounted indicator or alarm

Transmitter in another vehicle

C370S230000

Reexamination Certificate

active

08059012

ABSTRACT:
A method is provided for delivering data messages in an inter-vehicle ad hoc network. The inter-vehicle ad hoc network utilizes a multi-hop routing protocol for storing, carrying forward and distributing a data message to various vehicles traveling along the road. The method includes determining a first cluster consisting of a group of vehicles proximate to one another traversing along a road in a first direction. A determination is made as to which vehicles within the first cluster are trailer vehicles for re-broadcasting messages based on vehicle position within the first cluster. An event is detected in a travel path of the first cluster by one of the vehicles in the first cluster. The event is reported to other vehicles in the cluster. At least one vehicle in a second cluster moving in an opposite direction to the first cluster is detected. The data message is broadcast from the determined trailer vehicles to the second cluster.

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