An approach to cross counter-rotating seams in LEO satellite networks

Zhe Guo, Zheng Yan

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


A seam is a border of two special longitudinal regions where the directions of revolution of neighbor satellite planes are opposite. Counter-Rotating Seam (CRS) of Inter-Satellite Links (ISLs) should be seriously considered in the routing of Low Earth Orbit (LEO) satellite networks. However, establishing ISLs across CRS in LEO satellite systems is rarely discussed in the literature. Prior research showed that it is difficult to maintain the communication links between satellites with a high relative movement speed in opposite directions. Almost all researches on LEO satellite routing algorithms are based on this assumption. The separation of source-destination pair by the seam makes the existing algorithms very complicated. This paper investigates the possibility of maintaining links across CRS by re-calculating the movement parameters of satellites besides CRS whilst indicating an error in previous work. The result shows it is practical to implement links across CRS. We propose a practical approach for this implementation and provide a simple handoff algorithm. Through simulations, the impact of CRS is further discussed and the effectiveness of our approach is showed.

Original languageEnglish
Title of host publication32nd AIAA International Communications Satellite Systems Conference, ICSSC
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
ISBN (Print)9781624103070
Publication statusPublished - 2014
MoE publication typeA4 Article in a conference publication
EventInternational Communications Satellite Systems Conference - San Diego, United States
Duration: 4 Aug 20147 Aug 2014
Conference number: 32


ConferenceInternational Communications Satellite Systems Conference
Abbreviated titleICSSC
Country/TerritoryUnited States
CitySan Diego
Internet address


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