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Road traffic information is considered vital for drivers and passengers in a VANET. Recently many approaches have been proposed for sharing the road information among the vehicles on the roads. Applications that use hovering information for road safety consider TTL and a radial distance from a center point to disseminate the information in a geographically limited area. These approaches generally...
Being a subclass of mobile ad hoc networks (MANETs), vehicular ad hoc networks (VANETs) have received considerable attention in recent years. Existing routing protocols of MANETs do not perform well for VANETs due to many different characteristics such as, fast moving nodes and frequent disconnections in the network. We present a context-aware hierarchical routing protocol based on road connectivity...
Vehicular ad hoc networks have received considerable attention in recent years. Being a subclass of mobile ad hoc networks, VANETs have some different characteristics than MANETs such as, fast moving nodes and frequent disconnections in the network. Existing routing protocols of MANETs do not perform well under these dynamic conditions in VANETs. We present a two-level hierarchical routing protocol...
Data aggregation for VANETs is considered a vital building block for many applications due to its bandwidth saving potential. In this paper, we propose a novel context aware data aggregation technique for VANETs. The data aggregation is done by the cluster head based on the context i.e. vehicle speed and density to reduces the required bandwidth for periodic data dissemination. The proposed technique...
Geocast routing in vehicular ad-hoc networks has become an area of interest for researchers as it is an essential part of ITS (intelligent transport system). Many vehicular applications require geocast i.e. fast and reliable warning message dissemination to particular regions. Several proposed approaches, consider a geocast region as a circular area with a center point and a radius. However, in case...
Vehicular Ad Hoc Network (VANET) is a subclass of Mobile Ad Hoc Network (MANET). QoS routing protocols are fundamental part of VANETs that aim to provide services with guaranteed quality. Existing routing protocols of MANET can be applied to VANETs as well but they do not perform well under the dynamic conditions of VANETs such as, fast moving nodes and frequent disconnections in the network. In this...
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