1.Department of Information Engineering， Anhui Technical College of Mechanical and Electrical Engineering， Wuhu， Anhui 241000；2.School of Computer and Information， Hefei University of Technology， Hefei 230009
Abstract：In this paper the vehicle self-organized network broadcasting protocol is studied under 3D transportation environment. In order to handle the data error， network delay， unreliable transmission， we propose a novel accurate and efficient algorithm Cubic traffic Adaptive Broadcast Routing (CAB) based on the Road Side Unit (RSU). In this algorithm， the broadcasting is divided into forward， backward and all-direction types according to the application in 3D transportation environment. Meanwhile， neighboring note information is exchanged using hello package exchange. By choosing the next broadcasting node based on the neighboring node statistics， the broadcasting efficiency is improved. For the data error problem in 3D transportation， the vehicle lane classification and the first jump confirmation method are introduce. Using NS-3 and VanetMobiSim to simulate the results， the proposed algorithm exhibits better package arrival rate， lower network loads， and smaller network delay， compared with the traditional broadcasting algorithms.
2017, Vol. 51 
