A Live Broadcast 4K Television System Utilizing the MPEG-DASH Adaptive Bit Rate Protocol and Internet Technologies

Abstract

This thesis proposes that an alternative to the existing cable television system could be created using the MPEG-DASH protocol (Dynamic Adaptive Streaming over HTTP) and other readily available internet technologies including web servers and content delivery networks (CDN). MPEG-DASH is a relatively new client-server protocol used for video streaming that leverages existing web server, file storage, and codec technology. The alternative television system proposed would be capable of streaming 4K resolution high-definition video using MPEG-DASH. MPEG-DASH is capable of interoperating with numerous streaming devices such as smartphones, smart TVs, and streaming devices such as Google Chromecast. Transmitting live TV using MPEG-DASH over a packetized IP network would be more effective at reaching more device types. In addition, the MPEG-DASH protocol is designed to use the highest possible video resolution based on dynamic network analysis. Thus, with MPEG-DASH the user enjoys the best possible picture and sound on more devices. The current methods of broadcasting high-definition television over-the-air and on wire-based cable TV networks are efficient for service providers but require an RF tuner or set-top-box to allow the user to view a broadcast. The proposal reduces the number of RF tuners required in the television system. Although the alternative television system would require a transition from a broadcast system to a unicast system and unicast systems require more network bandwidth, current trends in internet bandwidth growth at the edge of the internet should make it feasible. The first goal of the thesis is to explore the feasibility, practicality, and scalability of this alternative MPEG-DASH television system. The second goal is to design and develop a working prototype of the server side of the system.