two-dimensional clock synchronization algorithm for vehicular delay tolerant network

ISCAS OpenIR

	two-dimensional clock synchronization algorithm for vehicular delay tolerant network
	Zhao Zhong-Hua; Huang Fu-Wei; Liu Yan; Sun Li-Min
	2011
发表期刊	Ruan Jian Xue Bao/Journal of Software
ISSN	1000-9825
卷号	22 期号:UPPL. 1 页码:51-61
摘要	In vehicular delay tolerant network (VDTN), vehicles nodes often move frequently, which results in existing no end-to-end communication path between any nodes at a given moment, and VDTN has intermittently connectivity. The clock oscillators in the vehicle nodes are also susceptible to environment factors, and the crystal frequency fluctuates in the state of irregular. There exits much limitation and difficulty, when the traditional network clock synchronization algorithms are introduced directly into VDTN. A two-dimensional clock synchronization algorithm for vehicular delay tolerant network is proposed, which includes two synchronization processes in the vertical dimension and in the horizontal dimension. The two-dimensional clock synchronization algorithm reduces the time synchronization error and improves the synchronization accuracy, compared with the one-way synchronization. The experimental results show that VDTN obtains a higher synchronization accuracy through the two-dimensional clock synchronization algorithm. © Copyright 2011, Editorial Department of Journal of Software. All rights reserved.; In vehicular delay tolerant network (VDTN), vehicles nodes often move frequently, which results in existing no end-to-end communication path between any nodes at a given moment, and VDTN has intermittently connectivity. The clock oscillators in the vehicle nodes are also susceptible to environment factors, and the crystal frequency fluctuates in the state of irregular. There exits much limitation and difficulty, when the traditional network clock synchronization algorithms are introduced directly into VDTN. A two-dimensional clock synchronization algorithm for vehicular delay tolerant network is proposed, which includes two synchronization processes in the vertical dimension and in the horizontal dimension. The two-dimensional clock synchronization algorithm reduces the time synchronization error and improves the synchronization accuracy, compared with the one-way synchronization. The experimental results show that VDTN obtains a higher synchronization accuracy through the two-dimensional clock synchronization algorithm. © Copyright 2011, Editorial Department of Journal of Software. All rights reserved.
收录类别	EI
关键词	Algorithms Crystal Oscillators Mechanical Clocks Two Dimensional Wireless Networks
部门归属	(1) Institute of Software The Chinese Academy of Sciences Beijing 100190 China; (2) State Key Laboratory of Information Security Beijing 100049 China; (3) Graduate University The Chinese Academy of Sciences Beijing 100049 China; (4) School of Software and Microelectronics Peking University Beijing 102600 China
语种	中文
内容类型	期刊论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16064
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Zhao Zhong-Hua,Huang Fu-Wei,Liu Yan,et al. two-dimensional clock synchronization algorithm for vehicular delay tolerant network[J]. Ruan Jian Xue Bao/Journal of Software,2011,22(UPPL. 1):51-61.
APA	Zhao Zhong-Hua,Huang Fu-Wei,Liu Yan,&Sun Li-Min.(2011).two-dimensional clock synchronization algorithm for vehicular delay tolerant network.Ruan Jian Xue Bao/Journal of Software,22(UPPL. 1),51-61.
MLA	Zhao Zhong-Hua,et al."two-dimensional clock synchronization algorithm for vehicular delay tolerant network".Ruan Jian Xue Bao/Journal of Software 22.UPPL. 1(2011):51-61.