Demand-Aware Flexible Handover Strategy for LEO Constellation

Low-earth orbit (LEO) satellites will play a significant role in 6G and beyond systems to provide global connectivity. For this, multiple satellites should work together to provide the required services to ground users. Each satellite only views a user for a few minutes, thus a user needs to apply a...

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Bibliographic Details
Main Authors: Abdu, Tedros Salih, Lagunas, Eva, Ha, Vu Nguyen, Grotz, Joel, Kisseleff, Steven, Chatzinotas, Symeon
Format: Conference Proceeding
Language:English
Subjects:
Conferences
Demand-aware handover
Geometry
handover strategy
LEO satellite
Low earth orbit satellites
Rain
satellite constellations
Satellites
Simulation
Switches
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Summary:Low-earth orbit (LEO) satellites will play a significant role in 6G and beyond systems to provide global connectivity. For this, multiple satellites should work together to provide the required services to ground users. Each satellite only views a user for a few minutes, thus a user needs to apply a handover strategy to switch to another satellite. However, the handover strategy needs to be optimal to avoid frequent and unnecessary handovers. While the existing handover strategy is purely based on system geometry, it may not be efficient when user demand changes dynamically. This paper considers a demand-aware flexible handover strategy to obtain a minimum number of handovers while continuously satisfying user demand. The simulation results show that using the proposed handover strategy, the system requires fewer handovers than using the benchmark schemes.
ISSN:2694-2941
DOI:10.1109/ICCWorkshops57953.2023.10283793