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Full title—Efficient Cross-Orbital Link Construction for Low-Delay Communication in LEO Satellite Networks
The increasing demand for global wireless connectivity, driven by the expansion of IoT and AI applications, has led to growing interest in low earth orbit (LEO) satellite constellations. These systems offer low-delay and wide-coverage communication, addressing challenges faced by traditional geostationary orbit (GEO) satellites.
However, conventional inter-satellite link structures impose limitations on communication efficiency, particularly in cross-orbital transmissions, leading to increased propagation delays. In this study, we explore a cross-orbital link construction method aimed at reducing communication delay in the LEO satellite constellations. The proposed method improves transmission efficiency by considering the spatial distribution of ground-based communication demand when selecting satellites that are to establish cross-orbital links.
The simulation results show that the proposed approach reduces the average delay time compared to that experienced with the conventional random-selection-based method. In addition, we analyze the effect of topology update intervals on maintaining efficient link connections.
The findings of this study provide insight into inter-satellite link construction strategies that can enhance communication performance in LEO satellite networks. By considering demand-driven link formation, this approach helps mitigate delay challenges in dynamic and heterogeneous communication environments.
Full Article: IEEE Transactions on Vehicular Technology, Early Access
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