Virtualized Dynamic transcoding service for adaptive streaming video over HTTP in 5G systems

SDN and NFV technologies promise to enable the flexibility and programmability of networks in 5G infrastructures to ensure lower cost of network and service provisioning and operation and to reduce the time to market for new services. This paper focuses on showcasing and assessing a virtualized dynamic transcoding service using the capabilities of a 5G system, the NFV-based SONATA framework, an EC funded project inside Horizon 2020 and 5GPPP programs, while enhancing a virtual Content Delivery Network (CDN) service with features like elasticity and programmability. The business case of CDNs is well established where a series of business relationships are affected by various deployment scenarios that are possible within the current setting. SONATA framework allows to develop and deploy enhanced virtual services, through its Network Service Development Kit and Service Platform using a continuous integration and delivery DevOps methodology that allow high levels of programmability and flexibility to orchestrate and manage Network Services. In this way, performed experiments will demonstrate how online transcoding services deployed through the SONATA Service Platform results in a huge amount of resource saving comparing it with the commonly used offline transcoding service.