Towards an end-to-end delay analysis of LEO satellite networks for seamless ubiquitous access
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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.
KeywordsLEO satellite networks delay analysis tandem hot-spot traffic
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- 4.Kawamoto Y, Nishiyama H, Kato N, et al. Assessing packet delivery delay in multi-layered satellite networks. In: Proceedings of IEEE International Conference on Communication, Ottawa, 2012. 3311–3315Google Scholar
- 5.Hermenier R, Kissling C, Donner A. A delay model for satellite constellation networks with inter-satellite links. In: Proceedings of International Workshop on Satellite and Space Communication, Tuscany, 2009. 3–7Google Scholar
- 7.Hong Z G, Wang Y B, Shi M Y. A SPN-Based Delay Analysis of LEO Satellite Networks. Springer Berlin Heidelberg, 2008. 598–606Google Scholar
- 8.Jurski J, Wozniak J. Routing decisions independent of queuing delays in broadband LEO networks. In: Proceedings of IEEE Global Telecommunication Conference, Honolulu, 2009. 1–6Google Scholar
- 11.Min G Y, Wu Y L, Mohamed O K, et al. Performance modeling and analysis of interconnection networks with spatio-temporal bursty traffic. In: Proceedings of IEEE Global Telecommunication Conference, Honolulu, 2009. 1–6Google Scholar