A Reliable Method for Establishing a Common Time synchronization in Mobile Ad Hoc Networks in VANET.

Recently, new networks have been developed that integrate mobile ad hoc networks with fog computing. These networks, often referred to as vehicular ad-hoc networks (VANETs), may be used for several purposes, such as traffic monitoring, intelligent driving, and safe driving. of a heterogeneous network is the fog-based VANET. which consists of both static and dynamic nodes in The network heterogeneity causes a significant clock rate difference across the nodes in a fog-based VANET. nodes’ clocks losing their accuracy and cause problems like inaccurate duty cycle scheduling and erroneous event sequencing.Several message exchanges must occur between the nodes to synchronise the clocks. In this work, this paper propose a method to synchronise the time. In this method, a group of nodes is selected to communicate to disseminate temporal information over the whole network, as opposed to having each node contact with the nodesclose to it. The time synchronisation protocol proposed can adapt to the high nodal velocity and random changes in the network topology while maintaining high accuracy and resistance to node failure and packet loss. The combination of NS2 simulators used to carry out the protocol simulation to assess the system performance has produced persuasive findings, exceeding those shown by the basic protocols.