@article{M13B82B1F,
title = "Handover Optimization Method for Cross-Seam in LEO Satellite Based on Orbital Information",
journal = "The Journal of Korean Institute of Communications and Information Sciences",
year = "2025",
issn = "1226-4717",
doi = "10.7840/kics.2025.50.10.1536",
author = "Heonwoo Chu, Taehan Moon, Tae-Yoon Kim, Hanjin Jeong, Yongmin Song, Jae-Hyun Kim",
keywords = "LEO Satellite Network, Handover, Walker-Star Constellation",
abstract = "In the cross-seam of a LEO (low Earth orbit) satellite network, when a handover occurs between satellites in adjacent orbits, the absence of inter-plane ISLs (inter-satellite links) can lead to increased handover interruption time and routing instability. In this paper, we propose a method to reduce handover interruption time and routing instability in LEO satellite network in cross-seam regions, where ISLs between adjacent orbits are unavailable. The proposed handover method calculates the central longitude of the cross-seam using satellite orbital information and conducts handovers based on this longitude, minimizing changes in the orbits of the previously connected and newly connected satellites during cross-seam handover. Simulation results show that the proposed handover method reduces handover interruption time in the cross-seam."
}