| DOI | Resolve DOI: https://doi.org/10.23919/CNSM62983.2024.10814619 |
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| Author | Search for: Zhang, Bohan; Search for: Salahuddin, Mohammad A.; Search for: Hu, Peng; Search for: Wang, Yunli1ORCID identifier: https://orcid.org/0000-0002-2320-954X; Search for: Limam, Noura; Search for: Sun, Bo; Search for: Barradas, Diogo; Search for: Boutaba, Raouf |
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| Affiliation | - National Research Council of Canada. Digital Technologies
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| Format | Text, Article |
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| Conference | 20th International Conference on Network and Service Management (CNSM), October 28 - 31, 2024, Prague, Czech Republic |
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| Subject | 5G NTN; conditional handover; signalling storm |
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| Abstract | Low Earth orbit (LEO) satellites-based non-terrestrial networks (NTN) are envisioned to complement the fifth-generation (5G) terrestrial networks (TN), enabling global cellular services. However, the high mobility and large coverage of these satellites result in frequent and numerous inter-satellite handovers, leading to signalling storms that degrade the satellite gNodeB services. To address this, we mathematically formulate the handover problem and propose a novel signalling load-aware handover protocol based on conditional handover. We evaluate the effectiveness of the protocol using a customized discrete-event simulator and compare it against a set of baseline conditional handover schemes. Our findings show that the proposed protocol significantly reduces signalling peaks and balances the load more effectively, enhancing the robustness and efficiency of handover in 5G NTN. The simulator is made publicly available. |
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| Publication date | 2024-12-31 |
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| Publisher | IEEE |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 993fb237-50ac-4c09-8687-4277d94426fb |
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| Record created | 2025-02-12 |
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| Record modified | 2025-02-17 |
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