introduction of distance education using the internet
TRANSCRIPT
Aug 29th 2002
Introduction ofDistance Education Using the Internet
JICA / CRLKEIO UniversityWIDE ProjectKazunori [email protected]
Original Slides from Dr. Keiko OkawaCopyright: 2002 SOI Project
Today’s Lecture
• Introduction of the WIDE Project.• Introduction of distance education project.
– SOI Project
Aug 29th 2002
WIDE ProjectIntroduction of the WIDE Project
WIDE Project
• Research consortium on the Internet in Japan Since 1988.• 106 Organizations (39 universities and 66 companies)
– University, Industry, and Government– 687 members, about 200 active
• Share test beds:– High speed/Wireless/IPv6/Mobile/Multicast
• Non-profit, non-legal entity• 16 working groups
– Diffserv, icars, internet cars, irc, last– Lifeline, MAWI (Measurement analysis)– Multicast, moca (Member oriented CA)– Reliable MC, SOI, two, IPv6, wish, xcast, dns
• http://www.wide.ad.jp/
WIDE Project approaches• Challenges
– TCP protocols– Mobile Internet– Internet Education
• Test beds– IPv6– Multicast– Mobile
• Deployment– Practical use of super advanced technologies– Practical use of existing Internet environment
• Missionary work– IPv6
Aug 29th 2002
SOISchool of InternetToward next generation distance education
Original Slides from Dr. Keiko OkawaCopyright: 2002 SOI Project, WIDE Project
SOI Sauce!!!!
• Japanese traditional sauce founded 2000 years ago– Salt fermentation basis of
beans– 5 variations of sauce– 3 classes
• First sold: Yuasa, Kishuu Japan• First found on Books:
Muromachi period(AD1392-1573)
• 1027000KL delivered on 2001, (8.1L year/person)
• 118000KL exported
References:http://www.soysauce.or.jp
SOY
Goal
• Provide a higher educational opportunity to everyone on the Internet
= the digital communication infrastructure
– Free mapping of educational resources on the digital communication infrastructure. Free from:
• Organization• Country• Geography• Physical restrictions• Time restrictions
University
• Originally…– universitas studentium
• Group of people wishing to learn
– universitas magstrorum• Group of people wishing to teach
– Based on the individualism of learning• University are constructed under expediency of its nationalism,
country.– Top of the education pyramid.– Restriction.
• SOI Challenge– Without any restrictions provided by global digital communication
infrastructure, we constructed ideal “University”
Bases of SOI
• School on the Internet - SoI– Individuals whom wishes to learn is provided with highest level of
research and education platform using the Internet infrastructure without any restrictions.
• School of Internet - SOI– Substantiation platform of SoI
• construction of “Faculty of the Internet”– WIDE University, School of Internet (SOI)
Approach
• Digitize every activity at the University– Lectures, coursework, – Administration– Communication
• Find a problem and solve it• Find a new opportunity and try it• Evaluation• Experiments using “real” resources in the “real”
environment
Traditional Platform
Univ. A Univ. B Univ. C Univ. D
StudentA
StudentB
StudentC
StudentD
EducationalResources
EducationalResources
EducationalResources
EducationalResources
SOI Approach
Univ. A
EducationalResource
Univ. B
EducationalResource
Univ. C
EducationalResource
Univ. D
EducationalResource
Student A Student B Student C Student D
Student E Student F
Education Activities
• Education activities = Group of communications
Teachers
Students
Managed
InfrastructureSociety
Students
Educational Objects
• All the information provided, shared, exchanged by the members.
Teachers
Students
Managed
InfrastructureSociety
Students
SOI Mission
• Share and preserve the valuable educational resources.
• Technology Deployment– In between “researchers” and “users”.– demonstrate the social value of the technology.
• Internet Deployment– Internet, as a vehicle of “Global Educational Environment”.– Implement it wherever needed.
Activities
• SOI Class• SOI Collaboration Class• SOI Global Studio• SOI ASIA
SOI Class
• Systems– SOI for individual learners– SOI remote participation class – on-demand class– multimedia learning resource– Assignment System– Course Survey System– Transcript System– Copyright System– SOI CA and My SOI– Faculty Support
• Technology– Web and database– Streaming– Multimedia Synchronization– Digital Signature and
Certificate authority
School of Internethttp://www.soi.wide.ad.jp/
Top page of classhttp://www.soi.wide.ad.jp/class/20020010/
Archives of sessionAnd
Pre-sessions
What’s new?
Submit assignments
SOI on-demand class
• Synchronized multimedia
Synchronized material
Click to view the WEB for detail
SOI multimedia learning resource
Keyword search
Find a page
Start where you want
SOI remote participation class
STEP 1 Login
Course list
Course material
Communication
Audio-Video
STEP 2 Participation
Assignment System
一覧一覧一覧一覧ととととコメントコメントコメントコメント
Submission
View and revieweach other
Course evaluation
Anonymous comments
Set questionnaire Public review
Response fromteacher
Learning history of students
Monitoring
Student status
Comments Log
Course information certificate
Faculty support
Grades and Feedback
Reading List
Student Communication
Assignments
MySOI
Copyright Management Office
SOI Classsnapshot as of today
• Who– Over 8500 Registered participants– From high school students to retired business man– adult percentage : 60%
• Where– SOI SITE: http://www.soi.wide.ad.jp/– Since 1997
• What– 1112 hours of IT related lectures.– 43 university courses.– 83 special lectures and tutorials.
SOI Global Class
• Global class– Joint class
• Students in Multiple sites• Teachers in Multiple sites
– Shared class• Students in Multiple sites
– Remote lecture• Teachers in remote site
• Technology– IPv6– Multicast– DVTS (Digital Video over IP)– High speed Internet infrastructure (JGN, Internet 2 etc)– Remote presentation tools
Demonstration of DVTS
• DVTS = Digital Video Transport System– Transmits Digital Video (DV) through the network– Average network bandwidth = 30Mbps– Supported Operating Systems
• FreeBSD• NetBSD• Linux• Windows ME, 2000, XP
– IPv4 and IPv6– Multicast support– Video frame rate control– Video On Demand Services
• FreeBSD PC Server• 1.5TB Disk array
DVTS for Windows
DV Transport System
IEEE1394IEEE1394IEEE1394IEEE1394
Consumer DV Camera
IEEE1394IEEE1394IEEE1394IEEE1394
Internet
DV→Internet PC Internet →DV PC
Consumer DV
DV Encapsulation
DV Transport System
Internet
DV→Internet PC Internet →DV PC
IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394
Consumer DV Camera
Consumer DV
DV Transport System
Internet
DV→Internet PC Internet →DV PC
IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394IEEE1394
Consumer DV Camera
Consumer DV
DV de capsulation
DV
DV
DV
DV
DV
IP
UDP
UDP
1394Header
ApplicationHeader
DV/IP EncapsulationSender
Receiver
Network
Packet Format
IP(20)
UDP(8)
Header(8)
IEEE1394ISO
header(4)
DV data (488)
Unused(2)
Sequence(2)
Regulation Parameter(4)
Receiving and showing it to the monitor: Frame Buffering
Ring Buffer
output
Bandwidth Required for DV
0.005.0010.0015.0020.0025.0030.0035.00
full1/
21/
31/
41/
51/
61/
71/
81/
91/10
Video
AudAudio
（Mbps)
Frame rate reduction rate
<10Mbps Video<5Mbps
3．56Mbps(1fps)
System Requirements forWindows 2000, XP version
• Pentium III 400MHz and up– Requires MMX
• OHCI Compliant IEEE1394 interface• 100Base-T Ethernet• IPv6 package ( for IPv6 support in XP )
System Requirementsfor FreeBSD, NetBSD version
• Standard Pentium,Pentium II based PC• requires >200MHz Pentium
• PCI based IEEE1394 interface card• OHCI Compatibility
• 100BaseT PCI Ethernet NIC• Consumer DV Camcorder with DV Output• Cables
Next: Software Design
Video Archiving Server(Digital Video)
• RAID network server– 1.5TByte RAID SCSI drives
(RAID 5)– Dual processor PC (Dual
Athlon 2200+)– Gigabit Ethernet interface
• Modified Operating system– Based on FreeBSD– Interrupt aggregation– Resource management
Burst Traffic of CBR
• Periodic burst traffic caused by CBR UBR– Caused by frame reduction method
• Traffic measurement of ¼ frame reduction traffic
0
50
100
150
200
250
300
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29
（Calculated）
DV Frame
Pack
ets
Audio Packets
• Packet jitter in 10Mbps networks(in 1/5 mode)
Delay caused byvideo frame
usec
Periodicdelay
Burst Packet in 10Mbps
Packet sequence number
IEEE1394 bus deadline
Shaping the Burst Packets
• Smoothing the burst UBR packet flow– Shaping, flow control
• Using CBQ as a shaper
• Separation of Audio, Video packet• Priority control of Audio Packet
– Adapting audio jitter• Collaborative frame rate control
– Using RTCP/RTP
１０Mbps with CBQ
• Audio packet priority control with CBQpacket shaping
usec
sequence
Aug 29th 2002
Practical SOI withDVTS
Original Slides from Dr. Keiko OkawaCopyright: 2002 SOI Project, WIDE Project
Joint Class over the pacific ocean
http://www.soi.wide.ad.jp/class/99006/http://www.soi.wide.ad.jp/class/99007/
Remote Lecture
3 professors @ San Diego Super Computer Center
Students @ 3 universities in JapanNAIST
U-Tokyo
SFC
SOI Global Classsnapshot as of today
• Who and What– 9 shared/joint classes in 5 semesters since 1999 Fall – Involving 9 universities– A lot of one-time remote lectures from many places.
• Remote site in Japan• Remote site in the US (San Diego, Los Angels, Florida, etc)
– 2 courses all done by remote lectures from Maryland to Japan.
Internet2IPv6
Internet2IPv6
IPv6Japan
Backbone
IPv6Japan
Backbone
Maryland College Park, MD
Palo Alto, CA
KEIO Univ.
East Coast SOI StudioWest Coast SOI Studio
NAISTKUSA
U-Tokyo
Shibuya NTTC Studio
AI3Satellite
Backbone
AI3Satellite
Backbone
Partner Universities in
Asian CountriesJAIST
SOI Global StudioSOI remote lecture sites
SOI Global Studio Project
Fujitsu LabCollege Park,Maryland
NTT-MCLPalo AltoCalifornia
SOI Global Studio Sessions
Studio@Palo Alto, CA
Studio@Maryland
KEIO University, SFC
From Maryland US, to Japan
Digital Video over Digital Video over IIPv6 Pv6 Multicast NetworkNetwork
Aug 29th 2002
SOI-Asia
SOI AsiaSOI Global Class in ASIA
• Mission– Human resource development in Asia with “SOI Global Class”
using SOI educational resource.
• Challenge– Deployment of Internet, Internet culture and learning
environment with Internet
• Technology– Satellite Internet over C-band (AI3)– RO satellite and UDLR technology (Unidirectional Link Routing)– Multicast technology– Multicast streaming– IPv6
Shared Class JAD Twinning Program
1st1st
preparationpreparation
3rd3rd
2nd2nd
4th4th
Education in Malaysia
Universities in Japan(17 private, 7 public)
Transfer
Degree
Distance Education
JAD：Japanese Associate Degree Program
SOI/JAD On-demand
SOI/JAD Real-time sessions
The InternetThe Internet
Learn through your local mirror server
Giving LecturesFrom Japanese Universities
Taking Lectures atYour Institutions
LANLAN
SOI Mirror Server
SOI Asia
SOI Asia Partners
• Malaysia – JAD program / YPM College• Thailand
– Chulalongkorn University– Asian Institute of Technology (AIT)
• Laos - National University of Laos• Indonesia
– Universitas Brawijaya– Hasanuddin University– Universitas Sam Ratulangi– Institute of Technology, Bandon
• Myanmar – University of Computer Studies, Yangon• Vietnam - IOIT
AI3 Test-bed & UDL Sites
Brawijaya University,Indonesia
Hasanuddin University,Indonesia
Sam Ratulangi University,Indonesia
Laos National University,Laos
University of ComputerStudies, Yangon, Myanmar
Asian Youth Fellowship,Malaysia
Asian Institute of Technology, Thailand
Chulalonkorn University,Thailand
SO
I-AS
IA P
artners Satellite A
ntennaS
OI-A
SIA
Partners S
atellite Antenna
SO
I-AS
IA P
artners Satellite A
ntennaS
OI-A
SIA
Partners S
atellite Antenna
AI3 satellite earth stations
IF Coaxial Cable
UDLR Receiver
LAN
JCSAT-3 C-Band C-7 transponder
L-Band (950 - 1450MHz)
Terrestrial Internet
AC power supply
SOI Server
Provided by SOI Asia Project
Prepared by Institution
SOI Asia Site Configuration
SOI Clients
Receive Router
CampusLAN
CampusLAN
NUOL - Laos
IT Special Lecture – Group1http://www.soi.wide.ad.jp/soi-asia/g1/
• Feb, 2002• 105 Participants• Contents：
– 1st class (02/01/02) 11:00-11:30• SOI Asia Keynote (Prof. J. Murai)
– 2nd class (02/02/02) 11:30-14:00• MPLS: A Packet forwarding
Technology for the next generation Internet
– 3rd class (02/08/02) 11:00-14:00• Essential Technologies and
concepts for home networks– 4th class (02/15/02) 11:00-14:00
• Topics in Tools and Environments for a Distributed Cooperative Work
– 5th class (02/22/02) 11:00-14:00• Topics in Object – Oriented
Methodologies
UCSY, Myanmar
Chulalongkorn Univ.Thailand)
IT Special Lecture – Group2http://www.soi.wide.ad.jp/soi-asia/group2/
• March, 2002• 120 participants• Contents:
– 1st class (03/06/02) 11:00-11:30• SOI Asia Keynote (Prof. J. Murai)
– 2nd class(03/06/02) 11:30-14:30• MPLS: A Packet forwarding Technology for
the next generation Internet (Prof. Shinoda)
– 3rd class (03/13/02) 11:00-14:00• Essential Technologies and concepts for
home networks (Prof. Tan)– 4th class (03/20/02) 11:00-14:00
• Topics in Tools and Environments for a Distributed Cooperative Work
– 5th class (03/27/02) 11:00-14:00• Topics in Object – Oriented Methodologies
UNHASIndonesia
UNSRATIndonesia
UNIBRAWIndonesia
Asian Institute of TechnologyThailand
SOI approach for Accessibility
英語字幕英語字幕英語字幕英語字幕
Sub TitleSub TitleSub TitleSub Title
Accessibility SOI
• Digital Information > Analog Information
• SOI contents for the hearing aids– Close captioned contents
• SOI contents for the visually challenged – Navigation with audio– Audio and text information for higher accessibility of
contents
SOI Asia Contents
• 2001 – University Courses
• “Introduction to the Internet “ Keiko University (2001.4-7)• “Network Architecture” Keio University (2001.10-2002.1)• “Bio-science” Tokyo Denki University (2001.9-2002.1)
– IT Special Lectures • from JAIST and KEIO (2002.2-3)
– IT Basics • Translated version of Tutorials from
IW99, IW2000, IW2001 (2002.2-3)• 2002
– SFC Social Course, June-July– SOI Asia Operators Workshop in
Summer @ SFC– Fishery, Sept from
Tokyo University of Fishery– IT Course, Oct-Dec from
Keio Univ/U-Tokyo etc
Future Plans
• Deployment of new learning style– More SOI archives– Encourage university resource sharing
• SOI Asia Project– Courses in Feb/March– Multicast file distribution– Distribute tools to get more contents development
• SOI Global Studio Project– Site Standard Design– More sites– Light-weight mobile sites– Develop and distribute the course Management tools– Shared facility Management
• Accessibility SOI
How to join SOI?
• Joining SOI activities– I will write a proposal to our project for a joint of Southern
Pacific and SOI-Asia– Materials for sharing– Internet Freedom