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With the increase of vehicles in city, unexpected abnormal events may occur on roads more frequently. It is necessary to disseminate abnormal traffic information to other vehicles in vehicular ad hoc networks (VANETs).With traditional geocasting protocols, the considered target region is normally single and its range is fixed. However, when an abnormal event occurs, its impacted area may include multiple...
Most data aggregation and dissemination approaches for VANETs attempt to create and utilize a structure for collecting information. The structures vary and could be categorized as either node-centric, as in a tree, mesh, or a cluster, or road-centric as in highway segmentation. In this paper we present a structureless information dissemination scheme that creates a layered view of road conditions...
Efficient dissemination of messages in a vehicular ad hoc network (VANET) still face many challenges in the current research scenario. This paper addresses the problem of redundant forwarding of messages that occur during broadcast and proposes an adaptive forwarding mechanism which controls the amount of redundant messages thereby improving message dissemination over a VANET. The mechanism will enable...
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