Enhancing Reliability in LEO Satellite Networks via High-Speed Inter-Satellite Links
Abstract: Low Earth orbit (LEO) satellites play a crucial role in providing global connectivity for non-terrestrial networks (NTNs) and supporting various Internet-of-Remote-Things (IoRT) applications. Each LEO satellite functions as a relay node in the sky, employing store-and-forward transmission strategies that necessitate the use of buffers. However, due to the finite size of these buffers, occurrences of buffer overflow leading to packet loss are inevitable. In this paper, we demonstrate how inter-satellite links (ISLs) can mitigate the probability of buffer overflow. Specifically, we propose an approach to reallocate packets among LEO satellites via ISLs to minimize the occurrence of buffer overflow events. Consequently, the implementation of ISLs can lead to a more reliable satellite network, enabling efficient packet reallocation to reduce the probability of buffer overflow.
- M. De Sanctis, E. Cianca, G. Araniti, I. Bisio, and R. Prasad, “Satellite communications supporting Internet of Remote Things,” IEEE Internet Things J., vol. 3, no. 1, pp. 113–123, 2016.
- M. Giordani and M. Zorzi, “Non-terrestrial networks in the 6G era: Challenges and opportunities,” IEEE Network, vol. 35, no. 2, pp. 244–251, 2021.
- M. M. Azari, S. Solanki, S. Chatzinotas, O. Kodheli, H. Sallouha, A. Colpaert, J. F. Mendoza Montoya, S. Pollin, A. Haqiqatnejad, A. Mostaani, E. Lagunas, and B. Ottersten, “Evolution of non-terrestrial networks from 5G to 6G: A survey,” IEEE Commun. Surv. Tutor., vol. 24, no. 4, pp. 2633–2672, 2022.
- N. Pachler, I. del Portillo, E. F. Crawley, and B. G. Cameron, “An updated comparison of four low earth orbit satellite constellation systems to provide global broadband,” in 2021 IEEE International Conference on Communications Workshops (ICC Workshops), pp. 1–7, 2021.
- B. Al Homssi, A. Al-Hourani, K. Wang, P. Conder, S. Kandeepan, J. Choi, B. Allen, and B. Moores, “Next generation mega satellite networks for access equality: Opportunities, challenges, and performance,” IEEE Commun. Mag., vol. 60, no. 4, pp. 18–24, 2022.
- A. U. Chaudhry and H. Yanikomeroglu, “Laser intersatellite links in a starlink constellation: A classification and analysis,” IEEE Veh. Technol. Mag., vol. 16, no. 2, pp. 48–56, 2021.
- C. Loo and J. Butterworth, “Land mobile satellite channel measurements and modeling,” Proc. IEEE, vol. 86, no. 7, pp. 1442–1463, 1998.
- Wiley, Feb. 2017.
- J. A. Fraire, S. Céspedes, and N. Accettura, “Direct-to-satellite IoT - a survey of the state of the art and future research perspectives,” in Ad-Hoc, Mobile, and Wireless Networks, Lecture Notes in Computer Science, pp. 241–258, Springer, 2019.
- C.-S. Chang and J. A. Thomas, “Effective bandwidth in high-speed digital networks,” IEEE J. Selected Areas Commun., vol. 13, pp. 1091–1100, Aug. 1995.
- Lecture Notes in Mathematics, Springer Berlin Heidelberg, 2004.
- J. Choi, “Rare-event analysis of packet-level coding for URLLC via virtual queue,” IEEE Trans. Wirel. Commun., vol. 22, no. 5, pp. 2962–2974, 2023.
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