5G-VICTORI: CDN services in dense static and mobile environments

This UC aims to optimise streaming services in mobile environments enabled by 5G technologies, including mmWave, edge computing and media streaming standards, i.e. NBMP and MPEG SAND. It follows the multi-CDN concept and extends the streaming service’s CDN to trains by equipping them with caches. The caches are filled with content via mmWave high-speed links (“Data Showers”) for uninterrupted connectivity.

The Data Shower approach that is being developed in 5G-VICTORI extends the streaming CDN services to trains by equipping them with caches filled with content via wireless data links. The data shower utilises mmWave connectivity, which allows large amounts of media data to be transferred between caches quickly. This allows for a transfer of media content from the train station’s CDN cache to the train’s cache at data rates of up to 2.5 Gbit/s or even higher. In the future, data showers will be installed at selected locations along the train route. This is necessary to ensure that not only the most recent content is stored in the train cache (which is especially relevant for news content) but also that older, archived content is removed. Due to cost considerations, data showers will initially be installed at train stations, leveraging existing physical infrastructures. The Berlin Central Station was selected for use case validation under real/operational conditions using the RBB Mediathek's on-demand video catalogue.

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