Acta Metallurgica Sinica(English letters) ›› 2015, Vol. 22 ›› Issue (6): 10-17.doi: 10.1016/S1005-8885(15)60688-4

• Wireless • Previous Articles     Next Articles

Optimized beaconing rate control for vehicular Ad-hoc networks

Tang Lun, Liu Yifu, Chen Qianbin   

  1. Key Laboratory of Mobile Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2015-05-11 Revised:2015-11-19 Online:2015-12-31 Published:2015-12-30
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (61171111), the Natural Science Foundation Project of CQ CSTC (CSTC2011jjA40046), the Science and Technology Research Projects of Chongqing Municipal Education Commission (KJ120524).


In vehicular Ad-hoc networks (VANETs), beacon message is designed for the purpose of periodically broadcasting the status information (velocity, direction, etc.), which enable neighbor awareness and support some safety applications. However, under high density scenarios, fixed rate beaconing can cause severe congestion and lower the deliver rate of beacons and other kinds of messages. In this paper, we describe beaconing rate control approach with an one-dimensional Markov model, and based on this, an optimized beacon rate control scheme is proposed which aims to mitigate the congestion and maximize the deliver efficiency of beaconing. Analytical and simulation results show that our proposed scheme can achieve higher adaptability and beaconing efficiency compared with other schemes in various environments.

Key words:

VANETs, IEEE 802.11p, broadcast, beacon rate control, optimization model