Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (6): 18-22.

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Solution to and Analysis of the Model of Dedicated Short-Range Communication Protocol

Zhong Hui-ling1  Xu Jian-min2  Peng Xuan-rong3   

  1. 1.College of E-Commerce，South China Univ.of Tech.,Guangzhou 510640,Guangdong.China;2.College of Traffic and Communications,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China;3.Computer Dept.,Guangdong Industry Technical College,Guangzhou 510300, Guangdong,China
  • Received:2004-11-25 Online:2005-06-25 Published:2005-06-25
  • Contact: 钟慧玲(1971-)，女，博士，讲师，主要从事智能交通、智能控制、物流系统设计和管理方面的研究． E-mail:hlzhong@ scut.edu.cn
  • About author:钟慧玲(1971-)，女，博士，讲师，主要从事智能交通、智能控制、物流系统设计和管理方面的研究．
  • Supported by:

    国家“十五”科技攻关项目(2002BA404A23A)；华南理工大学自然科学基金资助项目(E5320271)

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Abstract:

In order to determine the important parameters of DSRC(Dedicated Short-Range Communication)proto-col,the communication process is divided into two phases,namely, the reservation phase and the data transmission phase.The mathematical model of the protocol is then established stage by stage based on the queuing theory .The time delay and the throughput in the reservation phase are then analyzed and discussed. Moreover,the calculation method and corresponding results of the main parameters and the performance targets in the data transmission Dhase are presented. This calculation is caried out on condition that the data transmission time foilows fixed-length distri. bution and negative index distribution. Solutions are also given to those cases where the application c0ndition d0es not meet the assumptions.

Key words: dedicated short-range communication, protocol model, intelligent transportation system, queuing theory