The Integrated Broadcast-Broadband approach aims to revitalize and expand current terrestrial transmission technologies by seamlessly integrating Internet capabilities. This hybrid model enables broadcasters to synergize traditional linear broadcasting with OTT techniques and leverage Cloud-based technologies. The result is a versatile system that offers multi-platform content delivery, personalized viewing experiences, and the ability to distribute unique content.
The transition to Advanced Television Systems Committee (ATSC) 3.0 is driving innovation in broadcasting by combining broadcast and broadband. This paper presents a reference architecture for implementing an ATSC 3.0 workflow in the cloud, with a focus on Studio-to-Transmitter Link (STL) transport over the public internet. All components of an ATSC 3.0 system, except for the exciter and transmitter, can be cloud-based. The dual reception capability of ATSC 3.0 enables simultaneous content delivery from Over-the-Air (OTA) broadcast and Over-the-Top (OTT) broadband sources, allowing for seamless service delivery and a broadband backup during STL Transport Protocol (STP) disconnection. However, Content Delivery Network (CDN) overflow during broadcast disruptions presents challenges. Amazon CloudFront’s caching layers, including Regional Edge Caches (REC) and Origin Shield, are analyzed to mitigate high traffic demands. Automatic Repeat reQuest protocols (ARQ) for STLTP distribution over public networks are explored, ensuring secure transmission with zero packet loss using Secure Reliable Transport (SRT) and Reliable Internet Stream Transport (RIST) protocols.
* Compulsory fields