Research on Dynamic Bandwidth Partition Algorithm for Control Channel of Vehicular Ad-Hoc Networks

被引：0
|
作者：
Zhang, Yao [1 ,2 ]
Yang, Licai [1 ]
Wang, Qun [2 ]
机构：
[1] Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Shandong, Peoples R China
[2] Shandong Univ Weihai, Sch Mech Elect & Informat Engn, Weihai 264209, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FUTURE GENERATION COMMUNICATION AND NETWORKING | 2014年 / 7卷 / 04期
基金：
中国国家自然科学基金;
关键词：
VANET; IEEE 802.11p protocol; control channel; channel access algorithm; bandwidth partition; chaos sequence; reliable communication;
D O I：
10.14257/ijfgcn.2014.7.4.16
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In IEEE 802.11p protocol of Vehicular Ad-Hoc network (VANET), the multiple channels are divided into one control channel (CCH) and six service channels (SCHs). CCH is used for broadcasting safety messages related to road conditions, so that CCH access algorithm has great influence on efficiency of VANET. This paper proposes a contention-free bandwidth partition algorithm, which can dynamically partition the CCH interval and bandwidth assigned to on board units (OBUs) located in vehicles according to real-time VANET environments. Meanwhile, a frequency hopping communication scheme based on chaos scrambling is applied to our algorithm to improve the reliability of VANET. The performance of proposed algorithm are verified by theoretical analysis, the results show that it is able to enhance the transmission efficiency of safety packets in CCH with high reliability.
引用
收藏
页码：171 / 182
页数：12
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