COBRA: A collaboration based reinforcement mechanism for mass transmission in VANETs

CORC > 北京大学 > 软件与微电子学院

	COBRA: A collaboration based reinforcement mechanism for mass transmission in VANETs
	Tian, Rui ; Sun, Limin ; Liu, Yan ; Ma, Jian
刊名	jisuanji yanjiu yu fazhancomputer research and development
	2009
英文摘要	Vehicular ad hoc networks (VANETs) allow vehicles to form self-organized networks while driving, which can offer cheap methods to access the Internet for the passengers. When the scope of VANETs becomes larger, it's often needed to forward massive data to some fixed Internet APs distributed in the city. There are a lot of routing algorithms proposed to reduce the message propagation delay and also reduce bandwidth consumption on VANETs, but most of which are under the assumption that the bandwidth between vehicles is unlimited so massive data can be forwarded instantaneously; it is verified that this can lead poor transmission performances when implemented. The authors propose a reinforcing mechanism COBRA to forward massive data in VANETs. The COBRA mechanism focuses on the incomplete data transmitting problem brought by high driving speed and limited wireless communication range. The mechanism utilizes the stable topology characteristic of vehicles running in the same directions to prolong the opportunistic transmitting time, and also use erasure coding technology to deal with the uncertain factors in the 'meeting-forwarding' processes. The simulation results show that, when data are large, or when bandwidth is limited, the routing method with the reinforcing mechanism can outperform the existing VANET routing protocols.; EI; 0; 12; 2076-2084; 46
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/407934]
专题	软件与微电子学院
推荐引用方式 GB/T 7714	Tian, Rui,Sun, Limin,Liu, Yan,et al. COBRA: A collaboration based reinforcement mechanism for mass transmission in VANETs[J]. jisuanji yanjiu yu fazhancomputer research and development,2009.
APA	Tian, Rui,Sun, Limin,Liu, Yan,&Ma, Jian.(2009).COBRA: A collaboration based reinforcement mechanism for mass transmission in VANETs.jisuanji yanjiu yu fazhancomputer research and development.
MLA	Tian, Rui,et al."COBRA: A collaboration based reinforcement mechanism for mass transmission in VANETs".jisuanji yanjiu yu fazhancomputer research and development (2009).