Towards SDN/NFV-enabled satellite ground segment systems: End-to-End Traffic Engineering use case

Abstract

Key features of satellite communications such as wide-scale coverage, broadcast/multicast support and high availability, together with significant amounts of new satellite capacity coming online, anticipate new opportunities for satellite communications services as an integral part within upcoming 5G systems. To materialize these opportunities, satellite communications services have to be provisioned and operated in a more flexible, agile and cost-effective manner than done today. In this context, this paper firstly describes the architecture of a satellite ground segment system that builds on the introduction of Software Defined Networking (SDN) and Network Function Virtualization (NFV) technologies and then examines a use case for the realization of End-to-End Traffic Engineering in a combined terrestrial-satellite network used for mobile backhauling.

A Computation Offloading Incentive Mechanism with Delay and Cost Constraints under 5G Satellite-Ground IoV Architecture

“…Moreover, some existing researchful studies have focused on different issues based on the satellite-ground vehicular network framework. Authors in [10] examined a use case for the realization of end-to-end traffic engineering in a combined terrestrialsatellite network used for mobile backhauling. Literature [18] proposed an analytical assessment of the cooperation limits in the presence of both a satellite and a terrestrial repeater (gap filler) and derived exact expressions and closed-form lower bounds on coverage in a setup of practical interest by using the max-flow min-cut theorem.…”

“…An efficient and future-proof complementary solution to 5G terrestrial IoV is the 5G satellite-ground cooperative system, which contains open architecture based on Software Defined Networking (SDN) and Network Function Virtualization (NFV) technologies [9,10]. To fulfill diverse requirements, the role of the satellite-ground cooperative system can be fundamental to reaching areas where terrestrial IoV services are limited as well as managing and optimizing the global system performance by taking a macroscopic view.…”

SDN-based traffic engineering for improved resilience in integrated satellite-terrestrial backhaul networks

“…Based on the utility framework model presented in our previous work [12], this paper first describes an architectural framework that enables the integration and management of the satellite capacity as a constituent part of a SDN-based traffic engineered mobile backhaul network. Then, the paper also develops a Traffic Engineering (TE) application based in a centralized control for managing dynamically a steerable satellite capacity provisioned for resilience or emmergency purposes.…”

A traffic distribution scheme for 5G resilient backhauling using integrated satellite networks

“…Unlike more basic strategies that might be devised for simply replacing a failed terrestrial link with satellite capacity or just activating traffic overflowing through satellite in high demanding peak-times, the proposed scheme pursues an optimal allocation of the available satellite and terrestrial capacity so that a network utility is maximized under both failure and non-failure terrestrial links conditions. It's worth noting that a practical implementation of such traffic distribution strategy could be achieved through the realization of the architectural framework described in [18], which enables the integration and management of the satellite capacity as a constituent part of a Software Defined Networking (SDN)-based traffic engineered mobile backhaul network in a way that end-to-end paths across the satellite and terrestrial components can be centrally computed and re-arranged dynamically at flow-level granularity in front of link congestion and failure events.…”