Page 187 - ITU-T Focus Group IMT-2020 Deliverables

ITU-T Focus Group IMT-2020 Deliverables 3

Specific application examples benefiting from SDN / NFV include:

Scenario 1: flexible satellite bandwidth on demand through enhanced customisation and flexibility in the
provision of satellite network services.
Scenario 2: satellite backhauling of terrestrial network, enhancing management of satellite backhaul
capacity, and extending multi-operator sharing.
Scenario 3: Satellite/ terrestrial hybrid network services facilitating flexible traffic control and content
distribution between satellite and terrestrial access networks.
Scenario 4: Flexible programmable satellite payloads.
Examples of ongoing projects include:

Satellite CDN Overlay project: SES and Rutgers University's WINLAB are building a proof-of-concept
demonstrator of a content delivery overlay network designed to alleviate congestion in terrestrial networks
(wireless/telco/cable, etc.) by combining satellite multicasting with intelligent traffic routing, edge caching,
and data-driven cache management (popularity metrics) to optimize overall network performance and cost
effectiveness. The demonstrator is built up from large scale wireless and terrestrial networking test beds
(ORBIT and GENI) used to support research in these areas. Actual satellite capacity and Very Small Aperture
Terminals (VSAT) will be integrated to create a hybrid networking infrastructure upon which new
investigations and demonstrations of network optimization and content delivery can be performed. The
demonstrator is under construction and will become operational in Q1 2017.

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