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Introduction to theWINDS (Kizuna)-based Collaborative e-Learning project connectingAsian Institute of Technology (Thailand), Multimedia University (Malaysia) and University of Tsukuba (Japan)
1. Introduction and Overview2. WINDS satellite (Kizuna)3. Participants and Configurations4. Joint seminar series in 2008 and 2009
Collaboration-style distance education– Established on mesh-type satellite network– For regional conference, lecture, etc.
Joint development of common lecture courses and e-Learning materials
– Human resource development for Instructional designers and IT engineers
Preparation for WINDS applications
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University e-Learning in Asia
WINDS (collaboration style)Conventional Satellite
Japan
One-way lecture styleAdvanced e-Learning between universities Asia
Thailand
Malaysia
Tsukuba(Japan)
Distant Education by WINDS (Kizuna)
University of Tsukuba
AIT (Thailand)
MMU (Malaysia)
Mutual real-time delivery of lectures given in the Asian Institute of Technology (AIT, Thailand), Multimedia University (MMU, Malaysia) and University of Tsukuba (Japan), via WINDS (Kizuna) satellite functioning as a network switch.
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Univ. Tsukuba
Univ. Tsukuba
JAXA KDDI
Asian Institute of Technology ( AIT )
Multimedia University (MMU)
Real-time delivery of lecturesSharing e-learning materials
Promoting WINDS utilization
Networking technologies
Technical Evaluation
Education
A Univ.Traffic
B Univ.Traffic time
bandB; Image, Media etc.
B; Burst Traffic
Satellite capacity sharing technology
Mesh-type Network
A Joint Research Project
A; Image, Media etc.
A; Burst Traffic
ODU
Universityof Tsukuba
IDU
L3Switch
192.168.2. xxx
GW:192.168.2.1
ODU
L3Switch
GW:192.168.3.1
192.168.3. xxx
ODU
GW:192.168.4.1
192.168.4. xxx
Router
L3Switch
GW:192.168.1.4 GW:192.168.1.3 GW:192.168.1.2
192.168.1. xxx
Asian Institute of Technology
Multimedia University
NECTEC
Router
XXX.XXX.XXX.XXX
LMS Server
IDU
IDU
router router router
Learning Management System
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Types of Satellite-based Distance Education
All can equally participate in
Partly-Mesh Full Mesh-typeStar-typeBroadcasting
Two-wayOne-way
WINDSConventional Satellite
ControlRequestLink allocationData
ATM
RequestLink allocationData
unilateral multilateral
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Launch of WINDS (Feb. 23, ’08)
WINDS satellite which had been tested in JAXA Tsukuba was shipped to the JAXA Tanegashima launch pad in Dec. ’08. It was successfully launched on Feb. 23, ’08 on a H-IIA Launch Vehicle. The satellite, now named “KIZUNA” was injected into the scheduled geostationary orbit at 143 degrees East longitude. "KIZUNA" is performing initial functional verifications for onboard equipment . It will start normal operations in late June and is also scheduled to start experiments on communications, etc.
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Ka-band Satellite with High Speed Transmission Capability Gbps order
Bent pipe and Onboard ATM Switching
Multi-Beam Antennas(MBA) and Active Phased Array Antennas(APAA) with high speed scanning capability
Ka-band Satellite with High Speed Transmission Capability Gbps order
Bent pipe and Onboard ATM Switching
Multi-Beam Antennas(MBA) and Active Phased Array Antennas(APAA) with high speed scanning capability
Outline of WINDS System
MBA for Japanese islands MBA for Southeast Asia
Tx & Rx APAA
Launch ScheduleLaunch Schedule
2007 (FY)by H2A Launcher 2007 (FY)by H2A Launcher
Specifications of WINDS satellite
MissionLifeMissionLife 5 years5 years
LocationLocation 143 degree E143 degree E
DimensionDimension 3 x 2 x 8mSpan of Solar Paddles: 21.5m3 x 2 x 8mSpan of Solar Paddles: 21.5m
MASSMASS 4,850 kg ( lift off )4,850 kg ( lift off )
Electric PowerElectric Power
5,200W / EOL, Summer Solstice5,200W / EOL, Summer Solstice
Attitude ControlAttitude Control
Zero-momentum 3-Axis ControlZero-momentum 3-Axis Control
FrequencyFrequency U/L : 27.5 – 28.6 GHzD/L : 17.7 – 18.8 GHzU/L : 27.5 – 28.6 GHzD/L : 17.7 – 18.8 GHz
SatelliteG/TSatelliteG/T
> 18 dB/K ( MBA )> 7 dB/K ( APAA)> 18 dB/K ( MBA )> 7 dB/K ( APAA)
SatelliteEIRPSatelliteEIRP
> 68 dBW ( MBA )> 55 dBW ( APAA)> 68 dBW ( MBA )> 55 dBW ( APAA)
OnboardProcessingOnboardProcessing ATM Baseband SWATM Baseband SW
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Type LES HDR-VSAT USAT
AntennaDiameter
5 m(auto tracking)
1.2 m 45 cm
MaximumData Rate
Uplink: 1.2 GbpsDownlink: 1.2 Gbps
Uplink: 155 MbpsDownlink: 155 Mbps
Uplink: 1.5-6 MbpsDownlink: 155 Mbps
TX Power(with UPC)
200 W 100 W 5-10 W
Repeater Mode Bent-pipe Regenerative Regenerative
EIRP 78 dBW 66.9 dBW 48.8 dBW
G/T 28.5 dB/K 19.0 dBW 11.5 dBW
User Interface TCP/IPEther
TCP/IPEther
TCP/IPEther
Remarks - Transportable Transportable
Specifications of the Earth Stations
HDR-VSAT
Participating Schools
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Asian Institute of Technology (AIT) : Thailand
• Est. 1959, leading regional postgraduate institution in engineering, technology and management. Campus at north of Bangkok.
Multimedia University (MMU) : Malaysia
• Est. 1996. New university focused on telecomm., IT, software development, and management. Campus at Cyberjaya.
University of Tsukuba : Japan
• Re-est. 1973, at Tsukuba, north of Tokyo. One of the leading national universities in sci., eng., art, sport science.
15Multimedia University (Malaysia)
University of Tsukuba (Japan)
Asian Institute of Technology (Thailand)
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ODU
Universityof Tsukuba
IDU
L3Switch
192.168.2. xxx
GW:192.168.2.1
ODU
L3Switch
GW:192.168.3.1
192.168.3. xxx
ODU
GW:192.168.4.1
192.168.4. xxx
Router
L3Switch
GW:192.168.1.4 GW:192.168.1.3 GW:192.168.1.2
192.168.1. xxx
Asian Institute of Technology
Multimedia University
NECTEC
Router
XXX.XXX.XXX.XXX
LMS Server
IDU
IDU
Classroom to classroom connection using WINDS
router router router
Internet
Backup route
Transmission from each classroom (~ 12Mbps)
* Video (SD) (1ch)* Audio (1ch)* Text chat (1ch) (Synchronized powerpoint player at each class)
REF-VSAT②
51M-VSAT①
Portable-VSAT④
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Lecturer
Attendees Attendees
AttendeesAttendees Attendees
AttendeesAttendees
Camera for Lecturer
Projector forOther Sites Camera for
Attendees
Attendees
Projector forMaterials
Projector forOther Sites
Classroom of UT
↑Lecture scene (Feb. 9)
←Basic layout
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ODU
IDU
ClassroomL3Switch
AIT
AITCampus
Net
NECTEC
ThaiSarnTunneling
router
router
IFL Cable
Monitor
Camera
PC
MMC videoclient
Video Card
Video Capture Card
Sound Card
Ether CAT5e
Speaker MIC
Ether CAT5e
Ether CAT5e
Ether CAT5e
Ether CAT5e
USB
MMC PPT/chatClient
USB Key
USB
Monitor
TBD
TBD
TBD
TBD
TBD TBD
TBD TBD
LMS Client
Ether CAT5e
TA
IEEE1394
Echo Canceler
Audio MixerUSB Key
Setup at AIT
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Camerafor Lecturer
Projector forOther Sites
Display forOther Sites
Projector forMaterials
Attendees
Lecturer
Classroom of AIT
↑Lecture scene (Feb. 16)
←Basic layout
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ODU
IDU
MMU
L3Switch
IFL Cable
Monitor
Camera
Speaker MIC
Ether CAT5e
Ether CAT5e
USB KeyUSB
MMC videoclient
Video Card
Video Capture Card
Sound Card
PC
Ether CAT5e Ether CAT5e
MMC ppt/chatClient
USB KeyUSB
Monitor TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
LMS Client
Ether CAT5e
TA
IEEE1394
Echo Canceler
Audio Mixer
Classroom
Setup at MMU
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Classroom of MMU
Attendees Attendees
Attendees Attendees
Attendees Attendees
Display forOther Sites
Display forOther Sites
Display forOther Sites
Camerafor Attendees
Camerafor Lecturer
Display forMatelials
Lecturer Console Control Unit for AV Equipments
Display forOther Sites
↑Lecture scene (Mar. 16)
←Basic layout
Joint MMU-AIT-Tsukuba seminar series 08-09
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“Towards a sustainable international society”
• Feb. 2, 6, 10, 11, 16, 17, 23, 24, Mar. 16, 17
• Topics in Economics, International Relations, Build engineering (Tsukuba) ,
Space Usage (AIT), and Internet technologies (MMU)
• Part of a 2-credit course in the College of International Studies, Univ. Tsukuba (undergraduate).
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February 9, 2009 1st Lecture from UTUT. Lecturer: Professor M. Shuto.Theme: Comparison of Policy Responses to Globalization and Political System of Thailand and Malaysia.
February 10 2nd Lecture from UTUT. Lecturer: Professor S. Kitta.Theme: Economic Globalization and Developing Countries' Needs.
February 16 3rd Lecture from AITAIT. Lecturer: Professor S. Kibe.Theme: Space Environment Preservation from Artificial Space Debris (1).
February 17 4th Lecture from AITAIT. Lecturer: Professor S. Kibe.Theme: Space Environment Preservation from Artificial Space Debris (2).
February 23 5th Lecture from UTUT. Lecturer: Assistant Professor N. Shirakawa.Theme: Downstream effects of reservoirs - environmental flow problem.
February 24 6th Lecture from UTUT. Lecturer: Professor N. Saavedra-Rivano.Theme: APEC and its Role in the Process of East Asian Regional Integration.
March 16 7th Lecture from MMUMMU. Lecturer: Professor H.A. Abdul Rashid.Theme: Optical OFDMA as a Possible Technology for Fiber-To-The-Home.
March 17 8th Lecture from MMUMMU. Lecturer: Professor B.M. Goi.Theme: Cryptology and Information Security: Introduction and Future.
Details of the Remote Lecture Series in Academic Year 2008
“Towards a sustainable international society”
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For Attendees:A. Equipments1) Quality of image (multiple-choice; one of five options)2) Quality of sound (multiple-choice; one of five options)3) Equipments set up (multiple-choice; one of five options)4) The good and bad points the comments of equipments (description)
Questionnaire Entries and Result (1)
Attendees (1)
4
4
4
8
12
4
40
20
36
20
44
24
28
20
32
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
A-3
A-2
A-1a failureunsatisfactorysatisfactoryexcellentdelightful
A-4 Abstract from comments: The experiment is wally good. But it takes time to prove it in life. I think this system is too fragile. It's not for lecture. It takes too much time for the
set-up.
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Attendees (2)
0
0
24
4
52
44
16
32
8
20
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
B-2
B-1 strongly disagreedisagreeneither agree or disagreeagreestrongly agree
For Attendees:B. Lectures1) Interests and concerns (multiple-choice; one of five options)2) Understanding (multiple-choice; one of five options)3) The good and bad points the comments of lecture (description)
Questionnaire Entries and Result (2)
B-3 Abstract from comments: It's not easy to intercept the lecture even though students have questions due to
the long-distance. Also I think we can understand better it professor can use the blackboard to explain. (@UT, Feb. 17)
Today they have weather problem; so the signal are late and cannot listen anything. (@AIT, Feb. 17)
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Questionnaire Entries and Result (3)
Abstract from lecturer comments: A lecture more smoothly went along than I thought. I would like to recommend that
the setting lights up the classroom brightness and the lecturers mainly write on the blackboard in order to look at attendees in other sites with clarity.
Although some accidents happened in February 23, I satisfied with the post response and the exposition of situation.
For Lecturers:The good and bad points the comments of implementation system (description)
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Results of the Experiments (Seminar 08)
Quality of image and sound
The experiments produced considerable improvement
Communication delay
Decreased hops substantially reduced the delay
Incidents:
In first delivery on Feb. 9, the communication trouble happened in connection between AIT and other sites
Tropical rains, “squall” often showers in afternoon, affected the experiments, because Malaysia and Thailand belong to tropical rainforest climate
MMU-AIT-Tsukuba Remote Lecture Series in Academic Year 2009
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“Basic Japanese Kanji”
• Sep. 3, 17, Oct. 1, 8, 22, 29, Nov. 5, 12, 19
• Learning and practicing kanji through a variety of approaches (analysis of component parts, meaning, ON and KUN readings, use of kanji words in context etc.). The emphasis will be on recognition rather than writing, but the principles and practice of stroke order will also be taken up.
“Pattern recognition and inverse problems”
• Sep. 3, 17, Oct. 1, 8, 22, 29, Nov. 5, 12, 19
• Various problems in signal and media processing can be formalized as attempts to solve inverse problems. Inverse problem is a general class of mathematical problems encountered when dealing with a system that converts the original information to an output.
Classroom of AIT (Seminar 09)
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OCT 22 , 2009 (1) OCT 22 , 2009 (2) OCT 22 , 2009 (3)
NOV 5 , 2009 (1) NOV 5 , 2009 (2)NOV 5 , 2009 (3)
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In summary (to be updated after 09 seminar)
Merits High-bandwidth network switch floating in space
Good scalability (in terms of the number of schools) High-quality delivery of audio and video Time delay (< 1 sec) well in acceptable range. Mobile stations enable relocatable classrooms and speakers
Issues Technical
Interactive (using TCP/IP) : can be slow without booster
-> Joint use of land-line network Of educational systems
Time zone Semester systems
-> Use real-time delivery and archived contents
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Concluding Remarks
The WINDS satellite is greatly beneficial for remote education
Additional improvements of the image and sound quality would enhance the realistic-presence of lectures
It is important for lecturers to propose lecture management methods on operating the equipments and on pursuing collaboration with other-sites