Accelerating Handover in Mobile Satellite Network
Jiasheng Wu, Shaojie Su, Xiong Wang, Jingjing Zhang, Yue Gao

TL;DR
This paper introduces a novel handover scheme for LEO satellite networks that leverages satellite trajectory predictability to significantly reduce latency, enhancing performance for latency-sensitive applications in 5G and 6G.
Contribution
The paper proposes a new handover flowchart and synchronized algorithm that utilize satellite trajectory information to minimize interaction delays and computational complexity in mobile satellite networks.
Findings
Handover latency is significantly reduced compared to existing schemes.
The proposed scheme outperforms 3GPP NTN and other methods in experiments.
Prototype implementation demonstrates practical feasibility and effectiveness.
Abstract
The construction of Low Earth Orbit (LEO) satellite constellations has recently spurred tremendous attention from academia and industry. 5G and 6G standards have specified LEO satellite network as a key component of 5G and 6G networks. However, ground terminals experience frequent, high-latency handover incurred by satellites' fast travelling speed, which deteriorates the performance of latency-sensitive applications. To address this challenge, we propose a novel handover flowchart for mobile satellite networks, which can considerably reduce the handover latency. The innovation behind this scheme is to mitigate the interaction between the access and core networks that occupy the majority of time overhead by leveraging the predictable travelling trajectory and spatial distribution inherent in mobile satellite networks. Specifically, we design a fine-grained synchronized algorithm to…
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Taxonomy
TopicsSatellite Communication Systems · Mobile Agent-Based Network Management · IPv6, Mobility, Handover, Networks, Security
