Research of information interaction simulation method in Cooperative Vehicle Infrastructure System

The efficiency and performance of simulation method for information interaction process of Vehicular Ad-hoc Network (VANET) plays a crucial role in future Cooperative Vehicle Infrastructure System (CVIS). This paper puts forward a simulation method for information interaction process in CVIS based on the High Level Architecture (HLA) platform which consists of traffic simulator based on Paramics, network simulator based on OPNET and communication evaluation system in which evaluation indexes are integrated into the evaluation architecture through link-relative method. The simulation components act in close coordination with proposed time synchronization mechanism adaptively with feedback of their time differences. The test traffic scenario was built for the simulation method. The outstanding simulation results show that the time synchronization mechanism can shorten the time difference between Paramics and OPNET with proper step size, and the communication evaluation method we proposed in simulation platform can reflect the variation tendency of communication performance of VANET simulation system.