NGI Multicast Applications and Architecture

Allison Mankin
Colin Perkins
Ladan Gharai
Michael Craig
Ron Riley
Maryann Perez Maher
Jarda Flidr
Aaron Griggs

The NMAA project is exploring the limits of IP based streaming media applications. We focus on two tasks: scaling to very high quality and scaling to very large numbers of participants. The work is funded by DARPA IPTO under the Next Generation Internet Program.

HDTV over IP

The high definition television (HDTV) standards have been designed to be particularly compatible with computer technology. Unlike standard definition NTSC or PAL TV signals, HDTV is a digital format, compressed using the MPEG-2 video standard with Dolby AC-3 audio. The objective of our work is to achieve convergence of HDTV with Internet transport via multicast RTP over UDP/IP. We plan to demonstrate both compressed (19Mbps) and uncompressed (gigabit rate) HDTV transport over the DARPA Supernet testbed, and Internet2.

Digital Amphitheater

An amphitheater serves as a meeting place where hundreds of people can share an information experience (i.e. attend a lecture and participate in QandA), along with some degree of individual communication near one's seat. The Digital Amphitheater emulates this form of communication as a virtual experience over the DARPA Supernet, with the capacity and the community suited for pushing into this frontier of multicast applications.

Conference and Journal Papers

Ladan Gharai, Colin Perkins, Ron Riley and Allison Mankin, Large Scale Video Conferencing: A Digital Amphitheater, Proceedings of the 8th International Conference on Distributed Multimedia Systems, San Francisco, CA, USA, September 2002.
Ladan Gharai and Colin Perkins, Implementing Congestion Control in the Real World, Proceedings of the IEEE International Conference on Multimedia and Expo, Lausanne, Switzerland, August 2002.
Ladan Gharai, Colin Perkins and Allison Mankin, Large Group Teleconferencing: Techniques and Considerations, Proceedings of the 3rd International Conference on Internet Computing, Las Vegas, NV, USA, June 2002.
Colin Perkins, Ladan Gharai, Tom Lehman and Allison Mankin, Experiments with Delivery of HDTV over IP Networks, Proceedings of the 12th International Packet Video Workshop, Pittsburgh, PA, USA, April 2002.
Ladan Gharai, Colin Perkins and Allison Mankin, Scaling Video Conferencing through Spatial Tiling, Proceedings of the 11th International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV 2001), Danfords on the Sound, Port Jefferson, NY, USA, June 2001.
Colin Perkins and Allison Mankin, Diversinet: Embracing heterogeneity in future network services, Workshop on New Visions for Large-Scale Networks: Research and Applications, Vienna, VA, USA, March 2001.
Allison Mankin, Ladan Gharai, Ron Riley, Maryann Perez Maher and Jaroslav Flidr, The Design of a Digital Amphitheatre, Proceedings of 10th International Workshop on Network and Operating System Support for Digital Audio and Video (NOSSDAV 2000), Chapel Hill, NC, USA, June 2000.

Standards Contributions

Ladan Gharai, Colin Perkins, Gary Goncher and Allison Mankin, RTP Payload Format for SMPTE 292M Video, Internet Engineering Task Force, 2003.
Ladan Gharai and Colin Perkins, RTP Payload Format for Uncompressed Video, Internet Engineering Task Force, November 2002.

Presentation Materials

Colin Perkins and Tom Lehman, High Performance Networks and Multimedia, Presentation and demonstration for KidzOnline, Arlington, VA, USA, December 2002.
Ladan Gharai, RTP Payload Format for Uncompressed Video , Presentation at the 55th IETF to the Audio Video Working Group, Atlanta, USA, November 2002.
Colin Perkins and Tom Lehman, HDTV over IP, Presentation and demonstration to engineers from PBS, Arlington, VA, USA, November, 2002.
Ladan Gharai, Uncompressed high quality video over IP , Presentation at the 54th IETF to the Audio Video Working Group, Yokohama, Japan, July 2002.
Colin Perkins, RTP: Multimedia Streaming over IP, Presentation to the Video Services Forum, Austin, TX, USA, June 2002.
Colin Perkins and Ladan Gharai, Scaling Multimedia Conferencing, Presentation to Microsoft Research, Redmond, WA, USA, June 2002.
Colin Perkins, Experiments with Delivery of HDTV over IP Networks, Presentation at the 12th International Packet Video Workshop, Pittsburgh, PA, USA, April 2002.
Ladan Gharai, RTP Payload Format for SMPTE292M , Presentation at the 53rd IETF to the Audio Video Working Group, Minneapolis, USA, March 2002.
Colin Perkins, NGI Multicast Applications and Architecture, Presentation to DARPA NGI PI Meeting, Tysons Corner, VA, USA, January 2002.
Colin Perkins, Real-Time Delivery of Motion Imagery over IP Networks, Presentation at the NSF/NIMA workshop on Defining a Motion Imagery Research and Development Program, Herndon, VA, USA, November 2001.
Ladan Gharai, Scaling Video Conferencing Through Spatial Tiling, Presentation at the 11th International Workshop on Network and Operating Systems Support for Digital Audio and Video, Port Jefferson, NY, USA, June 2001.
Colin Perkins and Gary Goncher, Uncompressed HDTV over IP, Presentation at the DARPA workshop on Internet HDTV, Seattle, WA, January 2001.
Ladan Gharai, RTP Payload Format for SMPTE292M , Presentation at the 49th IETF Audio Video Working Group, San Diego, USA, December 2000.
Allison Mankin and Colin Perkins, Digital Amphitheatre, Presentation and Demonstration at the Ubiquitous Computing Workshop of the DARPA Expeditions Program, Pittsburgh, PA, USA, October 2000.
Colin Perkins, NGI Multicast Applications and Architecture, Presentation to DARPA NGI PI Meeting, McLean, VA, USA, October 2000.
Ladan Gharai, RTP Payload Format for SMPTE292M , Presentation at the 48th IETF Audio Video Working Group, Pittsburgh, USA, August 2000.
Ron Riley, The Design of a Digital Amphitheater, Presentation at the 10th International Workshop on Network and Operating System Support for Digital Audio and Video, Chapel Hill, NC, USA, June 2000.

Acknowledgements

This work is supported by the Defense Advanced Research Projects Agency under contract #MDA972-99-C-0022. The opinions, findings, conclusions and recomendations expressed herein are those of the authors and do not necessarily reflect the views of the Defense Advanced Research Projects Agency, or the U. S. Government.