Reliable packet delivery protocol for geocast protocol in disconnected vehicular ad hoc network
US8059012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jun 4, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.