基于时延的LEO卫星网络SDN控制器动态放置方法
TP393; 针对控制器进行信息同步维护全局网络视图时网络时延大的问题,基于对网络时延的分析提出了一种能够满足动态组网覆盖需求的SDN控制器放置方法.首先,根据卫星与终端的相对速度设计基于冗余覆盖的卫星子网划分机制;然后,对卫星网络分布式控制网络时延的进行研究,建立基于时延的控制器放置模型;最后,将控制器放置问题转化为基于软容量限制的设备放置问题,设计近似算法对模型进行求解.实验结果表明,所提方法能够在满足网络覆盖需求的同时优化网络时延....
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Published in | 通信学报 Vol. 41; no. 3; pp. 126 - 135 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Chinese |
Published |
重庆邮电大学通信与信息工程学院,重庆,400065
25.03.2020
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Subjects | |
Online Access | Get full text |
ISSN | 1000-436X |
DOI | 10.11959/j.issn.1000-436x.2020054 |
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Abstract | TP393; 针对控制器进行信息同步维护全局网络视图时网络时延大的问题,基于对网络时延的分析提出了一种能够满足动态组网覆盖需求的SDN控制器放置方法.首先,根据卫星与终端的相对速度设计基于冗余覆盖的卫星子网划分机制;然后,对卫星网络分布式控制网络时延的进行研究,建立基于时延的控制器放置模型;最后,将控制器放置问题转化为基于软容量限制的设备放置问题,设计近似算法对模型进行求解.实验结果表明,所提方法能够在满足网络覆盖需求的同时优化网络时延. |
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AbstractList | TP393; 针对控制器进行信息同步维护全局网络视图时网络时延大的问题,基于对网络时延的分析提出了一种能够满足动态组网覆盖需求的SDN控制器放置方法.首先,根据卫星与终端的相对速度设计基于冗余覆盖的卫星子网划分机制;然后,对卫星网络分布式控制网络时延的进行研究,建立基于时延的控制器放置模型;最后,将控制器放置问题转化为基于软容量限制的设备放置问题,设计近似算法对模型进行求解.实验结果表明,所提方法能够在满足网络覆盖需求的同时优化网络时延. |
Author | 韩珍珍 周洋洋 周文涛 赵国锋 徐川 |
AuthorAffiliation | 重庆邮电大学通信与信息工程学院,重庆,400065 |
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Author_FL | ZHAO Guofeng HAN Zhenzhen ZHOU Yangyang ZHOU Wentao XU Chuan |
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Keywords | 控制器放置 近似算法 天地一体化信息网络 软件定义网络 网络时延 卫星子网划分 |
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Title | 基于时延的LEO卫星网络SDN控制器动态放置方法 |
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