Telecommunications Science ›› 2013, Vol. 29 ›› Issue (1): 57-62.doi: 10.3969/j.issn.1000-0801.2013.01.009

• research and development • Previous Articles     Next Articles

Direction Transmission Protocol of the Highway Traffic Information Assisted by Roadside-Infrastructure

Jianghong Han1,3,Fan Yang1,Zhengyu Liu2,3,Lei Shi1,3,Li Zhang2,3   

  1. 1 School of Computer and Information, Hefei University of Technology, Hefei 230009, China
    2 School of Mechanical and Automotive Engineering, Hefei University of Technology, Hefei 230009, China
    3 Engineering Research Center of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei 230009, China
  • Online:2013-01-20 Published:2017-07-04

Abstract:

Existing VANET network broadcast transmission protocols have low channel utilization, and easily lead to channel congestion and other issues, so improved protocol assisted by roadside- infrastructure was proposed. It used roadside-infrastructure to cluster the vehicle. In the clustering, every sending data frame added the vehicle number to its head and each vehicle node received and transmitted the packets selectively. The results show that the improved protocol is able to improve the transmission channel usage effectively, and the effective information transfer rate is able to be increased by 20%.

Key words: VANET, broadcast protocol, base-station assisted, receive in turn

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