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Published in:
2020 | OriginalPaper | Chapter
A Novel Topology Design Method for Multi-layered Optical Satellite Networks
Authors : Xiupu Lang, Qi Zhang, Lin Gui, Xuekun Hao, Haopeng Chen
Published in: Space Information Networks
Publisher: Springer Singapore
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Abstract
Recently the topology design of multi-layer satellite network has drawn much attention from researchers due to the application of laser link in inter-satellite links (ISLs). Snapshot division is a common method of dynamic topology design, which splits the time-varying topology into a sequence of static snapshots. However, previous topology design researches based on snapshot division seldom consider multi-objective optimization and practical link parameters, such as link capacity, degree constrains, and link switch time. In this paper, a novel topology design method aiming to concurrently minimize both link switch time and network average end-to-end delay is proposed. The constraints of degree, visibility, and connectivity are considered in the proposed topology design method. Simulation results show that the proposed strategy has a better performance compared to traditional topology design methods for multi-layered optical satellite networks.