摘要
为进一步研究RC-MCMAC协议在车辆节点密集环境下访问控制信道的碰撞概率,建立了马尔科夫链模型用于分析RC-MCMAC协议在一个时隙内节点访问控制信道发送安全信息或者RFS帧的碰撞概率,并通过仿真实验比较了RC-MCMAC协议和VEMMAC协议在不同节点数和发送概率的条件下访问控制信道的碰撞概率。实验结果表明:随着节点数的增加,RC-MCMAC协议相比VEMMAC协议具备更低的访问控制信道碰撞概率。
In order to investigate the collision probability of RC-MCMAC protocol in accessing control channel in a dense vehicle node environment,a Markov chain model is established to analyze the collision probability in a node access control channel for sending security information or RFS packets within a time slot. The collision probability of accessing control channel between RC-MCMAC protocol and VEMMAC protocol under different node number and transmission probability is compared by simulation experiment. The simulation results show that with the increase of node number,RC-MCMAC protocol has lower access control channel collision probability than VEMMAC protocol.
作者
王冠
唐欣
赵中华
李晓欢
WANG Guan;TANG Xin;ZHAO Zhong-hua;LI Xiao-huan(The 34 TH Research Institute of CETC,Guilin 541004,China;School of Information Technology,Guilin University of Electronic Technology,Guilin 541004,China;School of Information and Communication,Guilin University of Electronic Technology,Guilin 541004,China)
出处
《广西大学学报（自然科学版）》
CAS
北大核心
2019年第3期733-739,共7页
Journal of Guangxi University（Natural Science Edition）
基金
国家自然科学基金资助项目(61762030)
广西创新驱动发展专项(桂科AA17204009,桂科AA18242021)
广西重点研发计划(2018AB15011)
广西高校中青年教师基础能力提升项目(2018KY0830)
