A method based on TDMA for improving the accuracy of neighbor list in VANET

摘要

Vehicular Ad hoc Network (VANET) is a kind of wireless ad hoc network to provide communications among vehicles and nearby roadside equipment. Neighbor node list plays an important role in routing discovery and maintaining protocols. The number of the neighbors is also a metric in deciding routes in some broadcast protocols. So the accuracy of the neighbor list impact on the performance of lots of protocols. In this paper, we put forward a method based on TDMA for Improving the Accuracy of Neighbor List (IANL-TDMA) in VANET. We used TDMA to solve the collision problems and proposed a hierarchical HELLO message transmission interval scheme. The evaluation results simulated using OPNET are given. The simulation results show that, compared with the other method, IANL- TDMA can get much higher accuracy for neighbor node list.