Security Analysis and Delay Evaluation for SIP - Based Mobile Mass Examination System

In Vehicular Ad hoc Networks (VANETs) the mobility of the nodes is the main concern. This mobility of nodes makes the route unstable and unreliable for the information exchange and communication between two nodes in the network. To enhance the performance and throughput of the VANETs, routes between nodes must be reliable and stable. In this paper, we study the significance of path duration and link duration in Vehicular Ad hoc Networks (VANETs). Because of this mobility, connectivity graphs changes very frequently and it affects the performance of VANETs. Therefore, path duration can be used to predict the behaviour of the mobile nodes in the network. Estimation of the path duration in VANETs can be a key factor to improve the performance of the routing protocol. Estimation of path duration is a challenging task to perform as it depends on many parameters including node density, transmission range, numbers of hops, and velocity of nodes. This paper will provide a comprehensive study for estimating the path duration in VANET