The Advanced International Case Study using High Speed Internet

1
The Advanced International Case Study using High
Speed Internet

• Kazuhisa NAKAGAWA Koji OKAMURA
• Department of Electrical Engineering Computer
  Science, Kyushu University
• Computing and Communications Center,
• Kyushu University

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Contents

• Background
• The Advanced Internet between Japan and Korea
• Special curriculum for freshmen in Kyushu
  University
• DVTS
• Teleconference tool
• Case study
• International experience using DVTS
• Outline Comment
• Conclusion

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Background - KJCN -

• KJCN (Korea-Japan Cable Network)
• Submarine optical cable between Fukuoka, Japan
  and Busan, Korea
• Kyushu Univ. plays a central role about high
  speed network between Japan and Korea.

Busan
KJCN (250km)
Kitakyushu
Fukuoka
Kyushu Univ. has various cooperation with Korean
researchers about the internet technology.
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Background - Research Institute -

• Genkai/Hyunhae project
• Proposes to develop the next Internet between
  Japan and Korea for research and education
• QGPOP (Kyushu GigaPOP project)
• The research project about next generation
  network mainly focused on northern part of Kyushu
• KOREN (KOrea Advanced Research Network)
• One of the biggest network for research in Korea

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Background - QGPOP KOREN -
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Background - Remote Educations -

• One of research topics in Genkai/Hyunhae project
  is Remote Educations.
• Remote Lecture
• Remote Medical Education

Junior High School students in Japan made
cultural exchange with Korean People via KJCN.
KJCN and Genkai/Hyunhae project enabled
telesurgical conference between Kyushu Univ.
Hospital and National Cancer Center of Korea.
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Background - Special Curriculum for Freshmen -

• There is a special curriculum for 1st grade
  freshmen in Kyushu Univ.
• An exploratory class in Department of Electrical
  Engineering Computer Science
• Couple of freshmen as a rule is assigned to each
  laboratory and research about the topic of
  laboratory.
• The theme of class is to train their research
  activity.
• Research and investigate for solution toward the
  subject given by professor of each laboratory
• Make a presentation about the results of their
  research

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Background - Teleconference held by Amateurs -

• We have the opportunity to use advanced
  applications based on high speed Internet.
• Most experiments of advanced applications were
  held by professional such as professor.

We thought the consideration for demonstration by
amateur was very interesting.
We performed demonstration experiment about
remote lecture with a minimum equipment.
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Background - International Teleconference -

• International exchange
• Two Way Communication
• Video Audio
• NetMeeting is not enough.
• Streaming Technology has a fatal problem on time
  delay.
• Almost teleconference systems are expensive.
• DVTS (Digital Video Transport System)
• Freeware
• http//www.sfc.wide.ad.jp/DVTS/
• We used commercial DVTS.

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DVTS - DVTS Outline -

• DVTS is an application for sending and receiving
  DV (Digital Video) streams using the Internet.

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DVTS - DVcommXP Comet DVIP -

• Our laboratory usually uses two kinds of DVTS as
  an advanced remote communication tool.
• DVcommXP (Software system)
• http//www.fatware.jp/
• needs high-spec PC
• 700MHz Pentium 4 CPU , 128M memory must be needed
• use both IPv4 and IPv6
• Comet DVIP (Hardware system)
• http//www.comet-can.jp/
• 4pin IEEE1394 (2)
• 100Base-TX RJ45 (1)
• Only use IPv4

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DVTS - Connecting using DVcommXP -

• Connecting using DVcommXP

DV Camera
IEEE1394
screen
projector
RGB
Gigabit network
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DVTS - Connecting using Comet DVIP -

• Connecting using Comet DVIP

DV Camera
Microphone
Mixer
AV cable for Video
Echo canceller
Digital Interface
AV cable for Sound
IEEE1394
TV
Digital Interface
AV cable
IEEE1394
Gigabit network
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Case study - Outline of the class -

• Outline of the class
• 90 minites per week (every Tuesday 250 420)
• _at_seminar room in Computing and Communications
  Center
• The first half (May 18th - June 8th)
• Three freshmen enjoyed simple conservation.
• The last half (June 15th - June 29th)
• Freshmen made some presentation
• Management of the class
• We had a test about connection previously.
• We used Windows Messenger as an application share
  function.
• We reported the state of streaming or sound in
  detail.

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Case study - Members -

• International exchange on gigabit Internet
• 3 freshmen
• Tsuyoshi SATO
• Hiroki SATO
• Shin HOU
• HIJK (High Internet Project between Japan and
  Korea) volunteers
• Mr. Jungbuk Lee (KAIST -Korea Advanced Institute
  of Science and Technology- )
• Mr. Jaehwa Lee (KT Korea Telecom- / KOREN NOC)
• Mr. Juwon Park (GIST -GwangJu Institute of
  Science Technology- )
• Mr. Farrukh Aslam Khan (Cheju National Univ. )
• Mr. Seomee Choi (Chungnam National Univ. )
• Mr. Songkan Youm (Korea Univ.)

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Case study - Location of Targets -
Korea Univ.
Seoul
KT
Taegu

Daejeon
Busan
KAIST
GIST
GwangJu
Chungnam National Univ
Cheju National Univ
Kyushu Univ.
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Case study - Conservation Part -

• The topics of conservation were various such
  as...
• "What's your hobby?"
• "Have you ever been to Japan?"
• "Do you have a girlfriend?"

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Case study - Presentation Part -

• The themes of presentation are as follows
• Tsuyoshi SATO
• 2004 FIFA World Cup, Japanese cities
• Hiroki SATO
• Fukuoka city and his hometown Oita city
• Shin HOU
• History of China, his hometown Shinyou

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Case study - Pictures of the Class -
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Case study - Impression from freshmen -

• Impression for the class from freshmen
• It was precious experience to communicate with
  foreign people in English.
• This class had an impact because they only know
  about TV phone
• Low bandwidth in network
• The quality of picture is not so good.
• Improvement plan
• Freshmen and volunteer talk about one thing
• Transmit digitized presentation material

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Case study - Problems actually happened -

• Using DVcommXP with IPv6 (May 25th )
• Connect to Mr. Jaehwa Lee (Daejeon area)
• Connection failure, there are a lot of packet
  loss
• Overhead happened when using IPv6.
• Maybe, network component in Windows XP doesnt
  work sufficiently.
• Time difference (May 25th )
• Connect to Mr. Farrukh (Cheju area)
• In the morning, there are a lot of packet loss.
• In the afternoon, we can connect successfully.
• Traffic exchange in network

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Conclusion

• This class got a favorable reception from
  freshmen.
• DVTS could install ordinary PC and the state of
  stream sending from Korea was clear and stable.
• Freshmen became positive about talking to
  volunteer with high quality real-time streaming.
• Future works
• We will continue to exchange with Korean
  volunteer using high speed Internet for this
  year's freshmen.
• Multi-way communication

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• Thank you

• Acknowledgement
• Cooperation of Korean side HIJK members as
  partners of the remote class, especially six
  volunteers
• Three freshmen of Kyushu University
• All QGPOP KOREN members
• Genkai/Hyunhae Project