Telecommunications Science ›› 2012, Vol. 28 ›› Issue (12): 62-67.doi: 10.3969/j.issn.1000-0801.2012.12.010

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

Jianghong Han,Fan Yang,Lei Shi,Zhengyu Liu   

  1. School of Computer and Information,Hefei 230009,China
  • Published:2017-02-07

Abstract:

Existing VANET network broadcast transmission protocols had low channel utilization,and could easily lead to channel congestion and other issues,so this paper proposed improved protocol assisted by roadside-infrastructure.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 can effectively improve the transmission channel usage,and the effective information transfer rate can be increased 20%.

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

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