Contact-aware Multiple-Layer CHORD for routing in Large-scale Satellite Networks

Han Li, Yue Li, Qinyu Zhang, Zhihua Yang
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Abstract

Large-scale satellite network attracts wide attentions of research community within the coming developments of next-generation networks. Considering the large expansion of the number of nodes in satellite networks, storing and updating global routing tables is almost impossible. Besides, the link state among nodes is more complex with a dynamic topology. To address above issues, we study the distributed routing problem in a large-scale satellite network. In this paper, we propose a routing mechanism in large-scale satellite networks based on Chord, which consists of a well-designed multiple-layer Chord architecture with a set of identification mapping schemes, a contact-based multi-layer finger table, an efficient path lookup algorithm and a routing table update algorithm, respectively. Via simulation results, it could be verified that under different satellite network scales, the proposed routing mechanism in this paper can achieve better end-to-end latency and update overhead.
面向大规模卫星网络路由的接触感知多层CHORD
在下一代网络的发展中,大规模卫星网络受到了研究界的广泛关注。考虑到卫星网络中节点数量的大量扩展,存储和更新全局路由表几乎是不可能的。此外,节点间的链路状态由于拓扑结构的动态变化而更加复杂。为了解决上述问题,我们研究了大规模卫星网络中的分布式路由问题。本文提出了一种基于Chord的大规模卫星网络路由机制,该机制包括一个设计良好的多层Chord架构和一组识别映射方案,一个基于接触的多层手指表,一个有效的路径查找算法和一个路由表更新算法。仿真结果表明,在不同的卫星网络规模下,本文提出的路由机制能够实现更好的端到端时延和更新开销。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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