The Nearest Is Not The Fastest : On The Importance Of Selecting In/Out Routing Hops Over A Satellite LEO Constellation

Alexia Auddino (1) , Anna Barraqué (1) , Oana Hotescu (1) , Jérôme Lacan (1) , Jose Radzik (1) , Emmanuel Lochin (2, 3)

1 ISAE-SUPAERO - Institut Supérieur de l'Aéronautique et de l'Espace
2 TELECOM - ENAC - Equipe télécommunications
3 ENAC - Ecole Nationale de l'Aviation Civile

This study investigates the importance of choosing the first (respectively last) hop to access (respectively to exit) a Low Earth Orbit (LEO) satellite constellation, which is of upmost importance for the LEO routing performance. Usually, basic routing strategies connect a ground station to its nearest satellite, and this strategy does not always lead to the optimal routing path. We propose to select this first/last satellites within a subset of knearest satellites. After performing routing simulations over one of the next-generation satellite constellations, preliminary results show that this in/out hop selection strategy leads to a better link capacity usage and a lower data loss rate, allowing a faster TCP bulk data transfer.

Mots clés: Mega constellation; LEO routing; Hypatia; ns-3 simulator

Domaines: Réseaux et télécommunications [cs.NI]

Alexia Auddino, Anna Barraqué, Oana Hotescu, Jérôme Lacan, Jose Radzik, et al.. The Nearest Is Not The Fastest : On The Importance Of Selecting In/Out Routing Hops Over A Satellite LEO Constellation. IEEE Vehicular Technology Conference - VTC2022-Fall, Sep 2022, Londres, United Kingdom. pp.1-5, ⟨10.1109/VTC2022-Fall57202.2022.10012796⟩. ⟨hal-03766403⟩