Design and Deployment of QoS Enabled Network for Contents Businesses.

Abstract

Major contents businesses like TV broadcasting and commercial (CM) production can use the Internet if quality of service (QoS) is guaranteed. For providing guarantee of QoS on the Internet, the differentiated services (DiffServ in short) architecture is preferred due to its advantage of scalability. Especially for mission critical applications like real-time video stream, the absolute guarantee of QoS like a virtual leased line (called Premium service) is necessary and gives an affordable solution. In this paper, we show a new design of QoS enabled network and its deployment which can provide Premium service to contents businesses. We set focus on two typical contents businesses, TV broadcasting and CM production which deal with multimedia contents. First, we introduce a contents business model in case of using the Internet for its contents transmission, and clarify the requirements from the network to provide guarantee of QoS. Based on these, we design a QoS enabled network to provide Premium service by introducing DiffServ compliant routers and a resource management system (a bandwidth broker). A bandwidth broker centrally manages all resources (primarily bandwidth) in a DS (DiffServ) domain by performing admission control. We deploy the designed QoS enabled functions to the testbed network which connects some real broadcast stations, production companies, and end users through ATM network. On this network, we plan several experiments to check the guarantee of QoS required by the applications for the real business cases. The main advantage of our design is that, it provides scalable centrally controlled management of network resources on the Internet. This project is the first step in order to find an appropriate and affordable solution of QoS mechanism on the Internet for the contents businesses and also to promote new businesses on the next generation Internet.