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Title:
two-dimensional clock synchronization algorithm for vehicular delay tolerant network
Author: Zhao Zhong-Hua ; Huang Fu-Wei ; Liu Yan ; Sun Li-Min
Keyword: Algorithms ; Crystal oscillators ; Mechanical clocks ; Two dimensional ; Wireless networks
Source: Ruan Jian Xue Bao/Journal of Software
Issued Date: 2011
Volume: 22, Issue:UPPL. 1, Pages:51-61
Indexed Type: EI
Department: (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
Abstract: 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.
English Abstract: 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.
Language: 中文
Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/16064
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
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,2011-01-01,22(UPPL. 1):51-61.
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