Research : Adaptive Internet TV
Consolidating Streams to Improve DASH Cache Utilisation
4 December 2015 / adaptive-iptv
Stephen McQuistin presented our poster on Consolidating Streams to Improve DASH Cache Utilisation at the ACM CoNEXT conference in Heidelberg, Germany, from 1-4 December 2015. This is early work, starting to explore how to optimise caching for large-scale video streaming systems based on the MPEG DASH standard (and related systems).
Internet @ 100
23 June 2015 / adaptive-iptv
The University of St Andrews awarded Dr Vint Cerf an honorary doctorate on 24 June 2015. To celebrate this, they organised a one-day event entitled The Internet at 100, with a number of talks reviewing the history of the Internet, its current state, and looking forward to the future. I was honoured to be invited to speak at this event.
Adaptive Media Transport Workshop
20 May 2015 / adaptive-iptv
I attended the Adaptive Media Transport Workshop held at Cisco in Issy Les Moulineaux, Paris, on 18-19 May 2015, and organised by Ali Begen. The goal of the workshop was to bring together those in industry and academia working on adaptive video streaming over the Internet, with a focus on technologies relating to MPEG DASH.
Conor Cahir — Approaches to Adaptive Bitrate Video Streaming
29 January 2014 / adaptive-iptv
Congratulations to Conor Cahir, who has successfully completed his MSc by Research dissertation on Approaches to Adaptive Bitrate Video Streaming.
Modelling Packet Loss in RTP-based Streaming Video for Residential Users
7 August 2013 / adaptive-iptv
Martin Ellis will present our paper on Modelling Packet Loss in RTP-based Streaming Video for Residential Users at the the IEEE Conference on Local Computer Networks in Clearwater, FL, USA, on 23 October 2012.
Talk on Understanding IPTV Performance in Residential Broadband Environments
29 November 2012 / adaptive-iptv
I gave a talk in the School of Engineering at the University of Aberdeen, on the subject of Understanding IPTV Performance in Residential Broadband Environments.
Martin Ellis — Understanding the Performance of Internet Video Over Residential Networks
27 September 2012 / adaptive-iptv
Congratulations to Martin Ellis, who successfully defended his PhD thesis (“Understanding the Performance of Internet Video Over Residential Networks”) today.
Cisco Workshop on Adaptive Media Transport
14 June 2012 / adaptive-iptv
Virtual RTCP: A Case Study of Monitoring and Repair for UDP-based IPTV Systems
31 March 2012 / adaptive-iptv
Martin Ellis will present our paper on Virtual RTCP: A Case Study of Monitoring and Repair for UDP-based IPTV Systems at the 19th International Packet Video workshop in Munich, May 2015.
Performance Analysis of AL-FEC for RTP-based Streaming Video to Residential Users
16 March 2012 / adaptive-iptv
Martin Ellis will present our paper on Performance Analysis of AL-FEC for RTP-based Streaming Video to Residential Users at the 19th International Packet Video workshop in Munich, May 2015.
New research student: Conor Cahir
2 October 2011 / adaptive-iptv
Welcome to Conor Cahir who starts work as a research student under my supervision today. Conor's work is sponsored by Cisco, and he'll be studying adaptive HTTP streaming and cache-aware TCP for streaming.
9 March 2011 / adaptive-iptv
RTP packet traces for IPTV systems are large, but well structured. While they compress reasonably well with a general-purpose compression utility, such as gzip, better performance can be achieved using a compressor that understands the structure of RTP data.
Measurements of Real-Time Traffic to Residential Users
10 November 2010 / adaptive-iptv
Martin Ellis will present our paper on Measurements of Real-Time Traffic to Residential Users at the ACM Multimedia Systems Conference in San Jose, CA, USA, on 23 February 2011.
Workshop on Adaptive Video Streaming over IP Networks
28 October 2010 / adaptive-iptv
I attended the Workshop on Adaptive Video Streaming over IP Networks held at Cisco Systems in Boxborough, MA, USA, on 12-13 October 2010, to present an update on our adaptive IPTV work.
New research project: Architecture and Protocols for Massively Scalable IP Media Streaming
21 June 2010 / adaptive-iptv
In previous work, we have analysed repair and monitoring mechanisms for scalable media distribution using RTP over multicast UDP/IP. This project takes one step back to consider the bigger picture of what is an appropriate protocol to use for large-scale, scalable, IPTV content distribution.
On the Use of RTP for Monitoring and Fault Isolation in IPTV
1 March 2010 / adaptive-iptv
Our paper On the Use of RTP for Monitoring and Fault Isolation in IPTV will be published in the March 2010 edition of IEEE Network Magazine.
On the Scalability of RTCP-Based Network Tomography for IPTV Services
10 January 2010 / adaptive-iptv
Ali Begen will present our paper On the Scalability of RTCP-Based Network Tomography for IPTV Services at the IEEE Consumer Communications and Networking Conference in Las Vegas, NV, USA, on 11 January 2010.
Packet Loss Characteristics of IPTV-like Traffic on Residential Links
9 January 2010 / adaptive-iptv
Martin Ellis will present our paper on Packet Loss Characteristics of IPTV-like Traffic on Residential Links at the IEEE Consumer Communications and Networking Conference in Las Vegas, NV, USA, on 10 January 2010.
New research project: Understanding and Reporting on IPTV Behaviour
23 September 2009 / adaptive-iptv
In our previous project work we a) established an active measurement infrastructure to assess the communication characteristics of cross-provider IPTV paths with different kinds of access networks (cable, ADSL) and carried out a first series of experiments, b) realising an ns-2 simulation environment for IPTV systems (including VQEs) incorporating RTCP- based feedback, FEC, and retransmissions for SSM-based video distribution, and c) performing initial simulations for feedback-based error repair and inference using the characteristics determined by the measurement.
Workshop on Real-Time Video Distribution over IP Networks
13 November 2008 / adaptive-iptv
We presented initial measurement results for IPTV networks at the Workshop of Real-Time Video Distribution over IP Networks held at Cisco Systems in Lawrenceville, GA, USA on 13-14 November 2008.
New research student: Martin Ellis
30 June 2008 / adaptive-iptv
Welcome to Martin Ellis, who starts work as a new research student under my supervision today. Martin is sponsored by Cisco for his first year, and will be working on the adaptive IPTV project.
New research project: Adaptive Error Measurement, Concealment, and Repair for IPTV
24 November 2007 / adaptive-iptv
Internet Protocol Television (IPTV) systems are a rapidly growing converged network service. These systems replace the traditional “set-top box”, receiving broadcast or cable television, with a networked IP-centric device, to which video is streamed live or on demand. The user experience initially follows that of traditional television, but it is expected that additional interactive services will be offered over time, as the potential of the underlying converged network architecture is exploited. Key to this, however, is ensuring the television service provided matches – or exceeds – that of traditional broadcast television. Converged networks suffer from different problems than do pure data networks and dedicated real-time transmission networks, so there is a need for new algorithms and protocol mechanisms to monitor reception quality and diagnose network problems. This project aims to develop such new algorithms and protocols.