Title: Towards an end-to-end delay analysis of LEO satellite networks for seamless ubiquitous access
Author: Chen, JianZhou (1)
; Liu, LiXiang (1)
; Hu, XiaoHui (1)
Corresponding Author: Chen, J. Z.(chenjianzhou1986@126.com)
Source: Science China Information Sciences
Issued Date: 2013
Volume: 56, Issue: 11, Pages: 1-13 Indexed Type: EI
Department: (1) Science and Technology on Integrated Information System Laboratory, Institute of Software, Chinese Academy of Sciences, Beijing, 100190, China; (2) University of Chinese Academy of Sciences, Beijing, 100049, China
Abstract: LEO satellite networks, with moderate propagation delay and low terminal power requirement, are considered as a promising solution to providing global seamless access services for ubiquitous computing. In order to satisfy the requirement of accessing computing resource for users, end-to-end delays should be bounded for a continual and reliable connectivity. But given dynamic topology and non-uniform distribution of terrestrial users, end-to-end delays within LEO satellite networks are liable to fluctuate. Hence, to examine the delay constraint, an analytical model based on a tandem queue is established under a hot-spot traffic pattern, which is unfavorable for bounded delays. The departure interval moments of a target flow are calculated and fitted for the next link as input parameters, from which queuing delays under cross flows are iteratively obtained. The analytical results show that this model is able to depict the influence by the traffic pattern with satisfying accuracy, which is valuable for the design of routing schemes in satellite networks. © 2013 Science China Press and Springer-Verlag Berlin Heidelberg. English Abstract: LEO satellite networks, with moderate propagation delay and low terminal power requirement, are considered as a promising solution to providing global seamless access services for ubiquitous computing. In order to satisfy the requirement of accessing computing resource for users, end-to-end delays should be bounded for a continual and reliable connectivity. But given dynamic topology and non-uniform distribution of terrestrial users, end-to-end delays within LEO satellite networks are liable to fluctuate. Hence, to examine the delay constraint, an analytical model based on a tandem queue is established under a hot-spot traffic pattern, which is unfavorable for bounded delays. The departure interval moments of a target flow are calculated and fitted for the next link as input parameters, from which queuing delays under cross flows are iteratively obtained. The analytical results show that this model is able to depict the influence by the traffic pattern with satisfying accuracy, which is valuable for the design of routing schemes in satellite networks. © 2013 Science China Press and Springer-Verlag Berlin Heidelberg. Language: 英语
WOS ID: WOS:000329537800001
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Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/17040
Appears in Collections: 软件所图书馆_期刊论文
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Recommended Citation:
Chen, JianZhou ,Liu, LiXiang ,Hu, XiaoHui . Towards an end-to-end delay analysis of LEO satellite networks for seamless ubiquitous access[J]. Science China Information Sciences,2013-01-01,56(11):1-13.
