PROJECT TITLE :
VANET Modeling and Clustering Design Under Practical Traffic, Channel and Mobility Conditions
In Vehicular Ad Hoc Networks (VANETs), vehicles driving along highways will be grouped into clusters to facilitate communication. The planning of the clusters, e.g., size and geographical span, has significant impacts on communication quality. Such design is affected by the Media Access Management (MAC) operations at the info Link layer, the wireless channel conditions at the Physical layer, and also the mobility of the vehicles. Previous works investigated these effects separately. During this paper, we tend to gift a comprehensive analysis that integrates the 3 necessary factors into one model. In particular, we tend to model an unsaturated VANET cluster with a Markov chain by introducing an idle state. The wireless channel fading and vehicle mobility are integrated by explicitly deriving the joint distribution of inter-vehicle distances. Closed-kind expressions of network performance measures, like packet loss probability and system throughput, are derived. Our model, validated by extensive simulations, is ready to accurately characterize VANET performance. Our analysis reveals intrinsic dependencies between cluster size, vehicle speed, traffic demand, and window size, furthermore their impacts on the general throughput and packet loss of the cluster. Performance evaluation results demonstrate the practical price of the proposed model in providing guidelines for VANET style and management.
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