Press Release

January 27, 2005
WIDE Project
Representative: Jun Murai

Real-time HDTV Broadcast Enabled Through Global, Ultrahigh-speed Internet Testbed.
- Toward the adoption of HD over IP -

WIDE Project (Representative: Prof. Jun Murai; Keio University and Associate Prof. Hiroshi Ezaki, Tokyo University Graduate School of Information Science and Technology) with the cooperation of Japan-US research organizations succeeded in conducting two interactive distance presentations using uncompressed, HDTV: High Definition TV transmission technologies at the JGN II Symposium 2004 in Osaka held at the Osaka International Convention Center between January 17-18, 2005.

The high-speed data telecommunications lines used for the broadcast were provided in cooperation with National Institute of Information and Communications Technology (NICT), JGN II, an advanced network testbed for research and development (Japan Gigabit Network: Research and development Gigabit Network), PoweredCom/WIDE Project joint experimental lines, NTT Communications/WIDE Project joint experimental lines, APAN, University of Washington, IEEAF, T-Lex, Pacific Northwest Gigapop, Pacific Wave, StarLight, NLR, Cisco Systems and Bussan Networks. The real-time broadcast of the HDTV images was achieved in cooperation with NTT Group, Pacific Interface, Research Channel, University of California and San Diego Cal-(IT)2.

On January 17, (Mon) Prof. Jun Murai of the Environmental Information Faculty of Keio University (Shonan Fujisawa Campus) gave a speech on ?JGN2: Contribution and Responsibility Towards Global R&D?, which was broadcast in real-time to the event site in Osaka from the Shonan Fujisawa Campus. Similarly, attendees watched on as Prof. Larry Smarr of the University of California, San Diego (UCSD) Jacobs School of Engineering gave a presentation on ?Using OptiPuter Innovations to Enable LambdaGrid Applications?, on January 18 (Tues), also broadcast live all the way from the University of Washington, Seattle.

Broadcasting HDTV in real-time requires the transmission of IP packets using a bandwidth of approximately 1.5 Gbps. Although faced with a network disconnection due to forces of nature in the lead up to the broadcast, interconnection of the cutting edge optical network technologies of the Japan-US operated R&D organizations achieved, within the very real preparation period of less than a month, long distance presentations leading world standards in the number of participants and the distance of the transmission. Tuning of the network infrastructure for the interconnection was made possible through the cooperation of a large number of organizations including Keio and Tokyo Universities.
The WIDE Project is concentrating on the promotion of the global development of ultrahigh-speed Internet testbed environments and enhancing cooperation between concerned research organizations. While promoting research and development into network operation technologies, WIDE Project is also looking to contribute toward the development of a global Internet community with the aim of establishing the fundamental Ultra-wide band Internet technologies on a global scale through the enhancement of real-time HD image broadcast systems. This will entail multicasting, or making it possible for the transmission of 3D images and rendering systems compatible to IPv6.
In particular, the WIDE Project aims to develop the cutting edge ultrahigh-speed Internet research and development platform in the Asian region and to contribute to and take on the responsibility of creating a global, ultrahigh-speed Internet test bed to connect the US-European gateways to Asia and the domestic research organization gateways to overseas countries through T-LEX.

We have also received the following comments from Dr. Laurin Herr of Pacific Interface and Dr. Ron Johnson from the University of Washington.

Dr.Laurin Herr, President, Pacific Interface Inc.,

On behalf of Pacific Interface Inc, thank you and congratulations to all for a job well done. Yesterday's JGN2 HDTV event was a meaningful achievement on many levels and everyone involved should be very proud of what was accomplished.

First, we demonstrated that, collectively, we were able to pull a high-profile international event together in only one month, over the New Year holidays no less. We were able to smoothly form-up an operational team from multiple organizations in the USA and Japan that worked together effectively. Thousands of emails, two giant conference calls, and key face-to-face meetings helped us overcome time and distance to make a common plan and manage its implementation. Team contributions were enormous. 33 people in Japan, according to Hiroshi's latest list. Many more in America at StarLight and PNWGOP. As Larry said last night, the key to successful optical networks is successful human networks. The greatest resource we had to produce this event was, without a doubt, the human talent with the necessary training, skills and experience. There was steady pressure under tight deadlines, but no friction. This level of sincere cooperation is the fruit, I think, of many successful iGRID events and SuperComputing speed trials and global workshops over the past years.

Second, we demonstrated the GLIF is becoming well-developed enough in Japan, in America, and between the two countries, to start offering multiple possible network paths that can insure a reliable data transfer, no-matter-what. The original plan was quite ambitious, I know, but the engineering teams at StarLight and PNWGPOP and JGN2/WIDE got right on top of it. I'm sure we were well on our way to successfully implementing via StarLight and JGN2 when the fiber got cut. Good thing that we were able to build back-up into the original plan. The flexibilty of the team and its mastery of the available networking resources were sufficient for us to recover from natural disaster (avalanche/flood) less than a week before the event. Very professionally handled by the "collective" managing the overall network engineering.

Dr.Ron Johnson, University of Washington

It is noteworthy that the (original and very ambitious) plan for this event was to use NLR to get from Seattle/PNWGP/Pacific Wave to StarLight, and then ride the jgn oc192 link to StarLight to Japan. That plan had come together successfully with the usual great help from Linda Winkler et al at StarLight. However, when a flood cut the cable JGN2 uses, the plan was shifted at the last minute to the backup plan to use the IEEAF connection between WIDE in Tokyo and the Pacific NorthWest Gigapop in Seattle.

Our colleagues at WIDE and JGN both did a sensational job of working around this major and difficult challenge to establish a PNWGP-WIDE-JGN venue connection; and, their wonderfull work and cooperation under very difficult circumstances and time pressures was very very impressive.


Network structure (Click to enlarge)


[Professor Murai]
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[Osaka]   [Washington]

Cooperating Organizations


  • WIDE Project
    Kimiko Ishikawa (PR Div.)
    N109, Keio Research Institute at SFC
    5322 Endo, Fujisawa-shi, Kanagawa 252-8520, Japan
    Tel: +81-466-49-3618 (c/o KEIO Research Institute at SFC)
    URL: http://www.wide.ad.jp/
  • NSPIXPリンク
  • SOIリンク
  • AIIIリンク
WIDE Award