Data Aggregation and Information Type in Road Probing
The RSU can collect and disseminate information to enhance the road traffic safety. It is also an important infrastructure to form ITS. Meanwhile, with the widely use of the sensors and wireless ad hoc networks, the VSN is formed. Combined the functions of the RSU and the VSN, the Road Probing scenario is proposed to enlarge the RSUs information collection range. In this paper, we focus on the safety-related traffic information on freeway and the practicable data aggregation scheme for Road Probing. We conclude the most important data types to be gathered. Most importantly, a data aggregation scheme using the time converge globally and the space converge locally will be proposed in Road Probing. Our method can greatly reduce the data redundancy and the broadcast storm effect. The advantage of the scheme is confirmed by the simulation results. The data reception improves greatly. The transmitting delay is comparatively low.
VANET data aggregation RSU Road Probing
Lin Sun Ying Wu Jingdong Xu Jinchao Li Yuwei Xu
College of Information Technical Science Nankai University Tianjin, China
国际会议
北京
英文
472-475
2011-08-24（万方平台首次上网日期，不代表论文的发表时间）