Lecture Exchange across the Pacific Ocean

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Lecture Exchange across the Pacific Ocean

• Yasuharu Toyabe
• haru_at_cs.wisc.edu

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Project Overview

• Prof. Lawrence Landweber and Prof. Jun Murai is
  teaching in team for Prof. Landwebers final
  lecture
• All the lectures would be archived for future
  reference
• 13 classes will be held live between 2
  Universities in Japan and University of Wisconsin
• Uses the new Internet Technologies

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Participating Universities

• Credits are given in the following Universities
• University of Wisconsin Madison - CS640
  Introduction to Computer Networks, Professor
  Lawrence Landweber
• Keio University, Japan - Computer Networks,
  Professor Jun Murai
• Nara Institute of Science and Technology (NAIST),
  Japan - Special Project, Assistant Professor
  Hideki Sunahara

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How the Classes are Held

• Archived onto the web
• Live lectures to and from Wisconsin
• 5 classes from Japan to Wisconsin
• 8 classes from Wisconsin to Japan

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Archived Lectures

• Students are able to access the archived lectures
  over the Internet for review
• Video Streaming
• RealNetworks RealVideoG2
• Online report system
• Online anonymous course evaluation
• Keyword search

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Different Class Schedules

• 3 classes / week in WISC (75min / class)
• 2 classes / week in NAIST (90min / class)
• 1 class / week in Keio (90min / class)
• On-Demand lecture archive make possible to share
  the same course without respect of difference in
  course schedule

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On Demand Lecture
Text based information
Audio, Video and Materials
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Live Lectures

• Lecturer may be thousands of miles away from the
  classroom
• Participants would still have interaction between
  each other

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New Internet Technologies

• Digital Video is put into IP packets and sent
  across the ocean
• 45Mbps for video and audio
• Low delay, high quality image and audio
• Using the new IPv6 instead of the common IPv4
• 128bit address space compared to 32bit
• Multicast streams to connect one sender and two
  receivers

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Flow of Digital Video
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Flow of Digital Video
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Network Diagram
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For More Information...

• See our web page
• http//www.sfc.wide.ad.jp/soi/
• Send e-mail to
• haru_at_cs.wisc.edu
• Or just stop by at CS room 7387