Improving content delivery with size-aware routing in hybrid satellite / terrestrial networks

Elie Bouttier (1) , Riadh Dhaou (2, 3) , Fabrice Arnal (4) , Cédric Baudoin (4) , Emmanuel Dubois (5) , André-Luc Beylot (2, 3)

1 TéSA - Télécommunications Spatiales et Aéronautiques - Telecommunications for Space ant Aeronautics
2 IRIT-RMESS - Réseaux, Mobiles, Embarqués, Sans fil, Satellites
3 Toulouse INP - Institut National Polytechnique (Toulouse)
4 TAS - Thales Alenia Space [Toulouse]
5 CNES - Centre National d'Études Spatiales [Toulouse]

As Internet usages expand quickly, access networks are modernized with new technologies like fiber-optic communications. However, upgrade costs are prohibitive in sparsely populated areas, the latter turning notably towards satellite connection. Indeed, this technology allows deploying a high-throughput Internet access quickly in these regions. Nevertheless, GEO satellites induce a long delay, not experienced on terrestrial infrastructures despite their low throughput. In this paper, we consider a heterogeneous network with both a satellite and a terrestrial path. This kind of architecture is known to be difficult to operate because of the important differences between used technologies. The emerging MP-TCP transport protocol, whose design enables to aggregate disparate paths properly, brought new hopes for heterogeneous networks. However, it does not take user Quality of Experience (QoE) into account as it focuses on maximizing the links occupancy. This paper propose an intelligent path selector using the content size to maximize users QoE in heterogeneous networks. Before detailing this method, we describe the architecture able to retrieve the size of delivered contents thanks to Content Delivery Network Interconnection (CDNI). Finally, we implement a testbed to evaluate the behavior of the proposed routing method. The results show a significant improvement of the delivery performance, outperforming MP-TCP.

Mots clés: Routing; Satellites; Estimation; Servers; Logic gates; Internet; Delays

Domaines: Informatique [cs]

Elie Bouttier, Riadh Dhaou, Fabrice Arnal, Cédric Baudoin, Emmanuel Dubois, et al.. Improving content delivery with size-aware routing in hybrid satellite / terrestrial networks. IEEE International Conference on Communications (ICC 2018), IEEE Communications Society, May 2018, Kansas-City, United States. pp.1--6, ⟨10.1109/ICC.2018.8422912⟩. ⟨hal-03044249⟩