Edu FullStory0308

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WINDS:Wideband InterNetworking engineering test and Demonstration Satellite Application of mesh-type satellite network for University e-Learning in Asia 2003.9.2 Tsutomu Shigeta Satellite Mission Research Center NASDA


Tele-Medicine Tele-Education Satellite IP Multicasting Overcoming Digital Divide QZSS Quasi-zenith Satellite System WINDS Wideband InterNetworking engineering test and Demonstration Satellite ETS-VIII Engineering Test Satellite-VIII i-Space High accuracy positioning Disaster Management - Space Information Infrastructure -


Features of ETS-VIII / WINDS →Planning ETS-VIII / WINDS application experiments with outside institutions National Institute of Multimedia Education Tsukuba University, Asian Institute of Technology(AIT)/ Malaysia Multimedia University(MMU) KDDI Corp., etc →Conducting pilot experiments as precursor for ETS-VIII/WINDS experiments.     ・Field education ・University e-Learning in Asia Get connected ― anywhere  Mountainous area, remote island etc. where Digital Divided area.   Small and portable terminal Wide coverage  Covers Asian and the Pacific area   Wideband   Higher quality image and sound, etc. Multicast distribution  Data distribution to multi-point in same time 4 5 Distance- Education by NASDA’s R&D Satellites 1 2 3 4


Classroom Field Education Example; Virtual tour of launch site Distance education form places difficult to access or communicate Small terminal realizes variety choicies of education contents from “Field “, such as heritage, museums etc. Mobile ETS-VIII Terminal Tanegashima launch site Satellite clean room ADEOS-II Panoramic camera


Outline of ETS-VIII (Engineering Test Satellite VIII )


19m × 17m, 2.4mm RMS ETS-VIII S-band Antenna 展開過程(7モジュール) 1m x 4m


Portable ETS-VIII S-band Terminal Tx/Rx : 21dBi, (75cm collapsible ) Tx/Rx : 26dBi, (1.2m in diameter) External antenna 140MHz IF (for OBP, OPS), Antenna Terminal for external antenna, LNA output for Rx electric power monitor, Ethernet for application equipment Interface AC100V (car battery converter as an option) Power W 27 x D 36.5 x H 12cm / 8kg level Size/Mass Sky-X software TCP/IP Accelerator Convolutional Code / Viterbi decoding ECC*2 π/4 Shift QPSK SCM*1 64, 128, 256, 384kbps (Built-in antenna), 768kbps (75cm collapsible external antenna), 1.5Mbps (1.2m in diameter external antenna) Transmission Rate 19.6dBW / -10.9dB/K (Built-in antenna) EIRP/ G/T Tx:2,655.5~2,658MHz Rx:2,500.5~2,503MHz, LHCP*3 Frequency Band *1:Single Carrier Modulation, *2:Error Correcting Codes, *3:Left-Hand Circular Polarization


PC-card size terminal. (Tx & Rx) For rescue in mountain or marine area (out of cell phone coverage) Various applications ex. GPS locator, ecology study, traffic control, etc. Hub GPS ⇒ location info. Data rate  ⇒ 50bps Power ⇒  0.1W antenna input Interface with the cellular phone or PDA Response form rescue team Earthquake, Mountaineering/Marin Accident PC Card size Terminal Attach Emergency SOS Signal (w/GPS location info) Application to Rescue Support Examining applications for “More reliable and efficient rescue operations” Attach Rescue operation Center PDA


Collaboration-style distance education Established on mesh-type satellite network For regional conference, lecture, etc. Joint development of e-Learning material Human resource development for Instructional designers and IT engineers Preparation for WINDS applications University e-Learning in Asia WINDS (collaboration style) Conventional Satellite China Lecture style Advanced e-Learnig between universities Asia Thailand Malaysia Tsukuba (Japan)


Academic conference viewing high definition image from excavation site Example of Application Excavation Site Beijing History Museum Conference Hall (Japan) Portable Terminal Conference Hall (Asia)


All can equally participate in Partly-Mesh Full Mesh-type Star-type Broadcasting Two-way One-way WINDS Conventional Satellite Pilot Experiment Types of Satellite-based Distance Education


Tx Antenna for Japan & surrounding area Tx & Rx Antenna for Asia Pacific Tx & Rx APAA Outline of WINDS (Wideband InterNetworking engineering test and Demonstration Satellite)

Coverage of Multi-Beam Antenna (MBA): 

Coverage of Multi-Beam Antenna (MBA)


Any place to Any place ; High Speed Beam Scanning Beam Scanning by Active Phase Array Antenna (APAA) Rx APAA Tx APAA Thermal Radiation Panel High Speed Scanning Beam 649mm 539mm 468mm 287mm


Bent-pipe 1 2 3   1 2 3 Conventional satellite On-board ATM switching DDEM ATM SW DDEM DDEM DDEM  MOD  MOD  MOD  MOD Controller DDEM:Digital Demodulator MOD:Analog Modulator A A B B C C A c B AA CB BA BX AA BA BX CB BX BX WINDS Onboard ATM A c B Multicasting by Cell copy Preventing congestion by cell deletion Generating TDMA reference burst


・・・ ・・・ RX SW MTX TX SW MTX RX APAA TX APAA MBA Japan MBA Oversea ・・・ MPA MBA Oversea <Example of Data Link: Multicast> ATM (& DDEM, MOD) ATM:ATM Switch DDEM:Digital Demodulator MOD :modulator Kanto 51Mbps×3 155Mbps USAT/VSAT VSAT Tohoku Kanto Kyusyu Seoul Manila Jakarta Singapore MBA Japan


Tsukuba University Domestic university Malaysia Multimedia University (MMU) Asian Institute of Technology (AIT) Commercial Satellite Image of PC screen Precursor for WINDS application experiment 2003 2004 2005 2006 2007 2008 → ▲ WINDS Launch Pilot Experiment Application Experiments for WINDS System installation Training / coordination E-Learning lecture (Pilot) Modification for WINDS E-Learning lecture (WINDS) Image of e-Learning WBT materials Pilot Experiment


Tsukuba Univ. NASDA KDDI Asian Institute of Technology (AIT) / Malaysia Multimedia University (MMU) e-Learning lecture Coordination of universities Promoting WINDS utilization Network technologies Technique Education A Univ. Traffic B Univ. Traffic time band B; Image, Media etc. B; Burst Traffic Satellite capacity sharing technology Mesh-type Network Teacher 1 teaching-material 1 Student Image of e-Learning WBT materials Organization of Pilot Experiment A; Image, Media etc. A; Burst Traffic teaching-material 2 Student Teacher 2 Teacher 3 Student teaching-material 3 Joint Research


Having experiences on learning subjects is the most effective, although takes a lot of preparation efforts, and not realistic for introducing to all subjects Attention to the virtual learning through WBT(Web Based Training),  Key for success is the quality of contents, so importance of the instructional designer (ID) This experiment is based on the 「distance lecture」 along with 「virtual learning through WBT 」 Aiming the sharing of know-how and experiences among universities in Asia for human resources development of ID. e-Learning


Collaboration-style distance education Connecting universities by mesh-type network Established by WINDS onboard ATM switch Utilizing Multi-point TV conference system Learning Management System (LMS) Efficient management of student’s understandings Satellite transponder capacity sharing (planned) Efficient sharing of transponder among; Participating entities Multimedia information (video/voice/file/etc.) Sharing in accordance with priority Seamless connection with terrestrial network (planned) Connecting overseas entities by satellite and domestic by fiber Features of Experiment System


Contents (Courseware) System (Hardware) Collaboration for contents Learning Management System (LMS) ODU / IDU Screen B (Image of other sites) Projector Microphone Camera Speaker Multi TV conference Satellite Network AIT (Thailand) Router / Hub Domestic University Satellite Terminal PC / TV conference ・ ・ ・ MMU(Malaysia) University in Asia Tsukuba University JGN JGN ― "Experience" by combined use of lecture and e-Learning WBT― Image of Experiment System Ground Network


Multi points TV Conference System WBT Courseware Chat Student’s understandings Student record


Multi-Carrier TDMA 5.5m Hub Station Antenna RF equipment Modem Network Control Center (NCC) KDDI,Tokyo router Access line Multimedia University (Malaysia) SKYCAST Lesson Multipoint TV Conference Relay server Management server Management and teacher client Tsukuba University e-Learning system ODU / IDU Lecture server / client (WINDS       ) Asian Institute of Technology (Thailand) router Distribution server e-Learning system router ODU / IDU Lecture server / client e-Learning system router Experiment System


Japan Thailand Malaysia RX TX RX TX Beam Layout in the Pilot Experiment System Assumed Beam Layout in the Future System Japan Thailand Malaysia RX TX RX TX RX TX RX TX Hawaii Indonesia RX TX RX TX RX TX RX TX Onboard SW Tsukuba Hawaii Thailand Malaysia WINDS System Network Management Tsukuba University Tsukuba University Network Management Japan beam Beam for SE Asia Beam for SE Asia Japan beam Pacific Beam Tsukuba University MMU AIT Japan beam Pacific Beam Bangkok Beam KL Beam All links are one-hop Maturing of Experiment System


Installing the system at AIT/MMU Evaluation of system & network performances Coordination of lecture plan by Tsukuba University /AIT/MMU Joint development of WBT courseware Seminar inviting prestigious scholar (ex. Novel prize winner) May expand the experiment by; Inviting universities from Asia-Pacific Exploring possible collaboration with relevant initiatives Present status & Future plan


Data gathering & discussion Agriculture Study Marine Science Environmental Study Earth Observation Satellites Forest/ecology/etc Academic study by Satellite network & Remote Sensing Concept of Academic Network in Asia WINDS ETS-Ⅷ


Concluding Remarks AO for WINDS application experiment is planned by MPHPT MPHPT: Ministry of Public services, Home affairs, Post and Telecommunications Expecting active participation in WINDS experiment For any inquiry, please contact; or Disaster quick rescue and recovery Bringing a variety of real topics into classrooms Narrowing IT gap in Asia-Pacific Improving QoL* for everyone *QoL : Quality of Life Web site;  i-Space HP


NASDA to be reborn as “JAXA” To be established on Oct. 1st National Space Development Agency of Japan (NASDA) National Aerospace Laboratory of Japan (NAL) Institute of Space and Astronautical Science (ISAS)


FY 2003 2004 2005 2006- ETS-VIII WINDS ETS-VIII Application Experiment WINDS Application Experiment Pilot Experiment Pilot Experiment Practical Use


i-Space Pilot Experiments as precursor for ETS-VIII / WINDS Application Experiments Field Education Real-time Highvision from Deepsea Tele-medicine Ka-band high speed Multicasting Disaster monitoring & Management


45cm class 1.2m 2.4m 国内及び近隣諸国 ● ; Spot Beam Domestic and Asia pacific ETS-VIII Coverage for S-band WINDS Coverage for Ka-band ● ; APAA beam for example 5m (MAX) 155Mbps ~ 622Mbps 1.2Gbps 155Mbps 1.5Mbps 384Kbps 5Kbps 50bps Earth Terminal of ETS-VIII and WINDS

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