Juggling with IPTV… or A GMPLS infrastructure for a better multicast IPTV network

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• Fernando Ramos (University of Cambridge)
• Thursday 12 March 2009, 16:00-17:00
• FW26, Computer Laboratory, William Gates Builiding.

If you have a question about this talk, please contact Eiko Yoneki.

The transmission of digital TV over an IP infrastructure – IPTV – is one of the fastest growing television services in the world. The number of IPTV users escalated from 2 million in 2005 to 14 million in 2007. The strict requirements imposed to the network, namely in terms of bandwidth and QoS guarantees, will certainly have a tremendous impact in the IP network. This fact, together with the emergence of High Definition TV and the fibre to the home trend in access networks, is moving the bottleneck to the core. In consequence, access and transport networks will need some reengineering for multicast and QoS.

In my PhD programme we aim to design a GMPLS system for provisioning optical core and access networks for Multicast TV. In this talk I will firstly present the motivation and the planning for this research work. As part of the plan, we propose to create a novel IPTV traffic model. This is work in progress, but I will present preliminary results. Finally, I will also present a case study where we used the first version of the GMPLS infrastructure that will be used in our research work. This was used to evaluate a routing algorithm we have proposed to mitigate a power excursion problem that occurs in all optical networks. This work resulted in a paper that was recently accepted for presentation in the Optical Fibre Communication conference (OFC 2009).

Bio: I am a PhD student from the University of Cambridge. I have two supervisors, Professor Ian White, from the Department of Engineering, and Professor Jon Crowcroft, from the Computer Laboratory. Prior to this, I graduated in 2001 from the University of Aveiro, Portugal, in Electronics and Telecommunications Engineering, and I also have an MSc in Telecommunications from Queen Mary University of London. After graduating I went to work in Portugal Telecom Inovação (the R&D company from the incumbent operator in Portugal), and then I moved to academia one year later. I started lecturing in the University of Aveiro (programming courses), and in 2003 I moved to the Institute of Engineering of Lisbon, lecturing several courses: from Electronics to Electromagnetism to Digital Communications.

This talk is part of the Computer Laboratory Systems Research Group Seminar series.

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