Low Earth orbit (LEO) satellite constellations are an important component of non-terrestrial networks (NTNs) in future sixth-generation (6G) systems, owing to their wide coverage and low propagation delay. However, due to the high-speed orbital movement of LEO satellites, the serving satellites of massive ground termin...
Yang Liu, Wen Liu, Wen-Liang Lin et al.· Italian National Conference...· 0 citations
With the rapid deployment of multi-layer low Earth orbit (LEO) constellations, spectrum scarcity has led to severe downlink co-frequency interference. While beam-hopping offers a flexible solution for resource allocation in these systems, its inherent spatio-temporal dynamics introduce significant complexity for interf...
Shen-Rong Li, Hong-Guang Dai, Ke Wang et al.· 2026 IEEE/CIC International...· 0 citations
A rolling-horizon migration-aware dynamic greedy control node placement algorithm (RH-MA-DGCNP) is proposed, which updates the CN placement and the affiliation between access-layer satellites and CNs at each reconfiguration epoch while jointly considering the handover delay and the migration delay caused by transferrin...
Yang Liu, Wen Liu, Wen-Liang Lin et al.· Electronics· 0 citations
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