NASDA i-Space ProjectAnd

Its Approach To Regional Cooperation for Satellite Application Experiments

APAN meetingJanuary 23-24, 2001

Tsutomu SHIGETASatellite Mission Research Center

National Space Development Agency of Japan (NASDA)

Point of contact for cooperative activities

Satellite Mission Research Center

Missionplanning

Manufacture

Development

Utilizationexperimen

ts

Project teams

Satellite Mission Research

Center

Operations

Research

Promoting space utilizationCreating new satellite

missions

Space Infrastructure

WINDS, ETS-VIII,Quasi-Zenith Satellite

Information Technology

(IT)

Advanced ITS

Environment monitoring

Academic research network

High-speed internet access

Disaster management

Remote medical treatment

Remote education

User oriented

i-Space for the Coming Information Society

Tele-medicine Tele-education

Satellite multicastingand Satellite IX

Overcoming digital divide

Sea, Land & Air Intelligent Transport System

Satellite mobile communications

i-Space (Space information infrastructure)

Quasi-zenith Satellite

ETS-VIII

WINDSPilot experiment with existing commercial

satellite

Implementation Plan

WINDS

Pilot experiments

ETS-VIII

High-data-rate communications & satellite-based internet

Satellite mobile communication

Experiments on element technologies

2004-

2005-

2001-

Quasi-zenith Satellite System

Advanced satellite mobile communications & positioning

ETS-VIII

- Launch in 2004FY- Large-scale deployable reflector- Mobile satellite communications system- Mobile satellite multimedia broadcasting system- Satellite positioning

ETS-VIII (Engineering Test Satellite - VIII)

Large-Scale Deployable Reflector

Deployable Solar Paddles

Phased Array Antenna Feeder

Antenna for Positioning Experiment

Hand-held Terminal :Portable telephone size

Portable Terminal: Note-book computer size

Transportable station: High-gain antenna of 1m diameter

Fixed Beam Area

Scanning Beam Area

Number of scanning beams

are threeThe beam can scan

anywhere in the scanning

area disc

20-2-4

6

4

2Manila

Portable Terminal Experiment Area

Handheld Terminal Experiment Area

Transportable stationExperiment Area

TaipeiHong Kong

Coverage of S-band Communication Antenna

Coverage of Satellite Navigation

5.00

0.00

- 5.00

5.00

0.00

- 5.00

- 5.00 0.00 5.00

- 5.00 0.00 5.00 DEG

DEGL-band Service AreaS-band Service Area

S-band-10 dB Area

L-band -10 dB Area

WINDS(Wideband InterNetworking engineering test and

Demonstration Satellite)

WINDS

Launch Year of 2005

OrbitGeostationary orbit（ chosen from 143,146 and 154.5 ゜ E ）

WeightAbout 2400k ｇ（ Dry-without fuel ）About 990 ｋｇ（ Mission Weight ）

23m

Solar Paddle

Tx APAARx APAA

Tx & Rx Antenna(Overseas)

Tx Antenna(Japan & the neighborhood)

Rx Antenna(Japan & the neighborhood)

Mission Communication Links (tentative)

Data Relay Bent PipeRegenerative processing & ATM Switching

FrequencyU/L:27.5 ～ 28.6GHz 　 D/L:17.7 ～18.8GHz

AntennaBeams

•Fixed Beams for Japan•Fixed Beams for 10 major cities in Asia•Spot Beam for other area

Data RateMax 1.2Gbps(622Mbps×2)

U/L: 1.5,6,24,51,155Mbps

D/L: 155 Mbps

Onboard Mission Equipment(draft)

MBA:Multi-Beam Antenna, MPA:Multi-Port AmplifierRx APAA Tx APAA

Throughput(Bent Pipe)

LNA,D/C ＆

IF SW MTX

ATM-SW(Router)

IF SW MTX

＆ U/C

ＭＰＡ

( ＃２）

ＭＰＡ

（＃1 ）

Tx MBA(Domestic ）

Tx and Rx MBA(Asia ）

Rx MBA (Domestic)

…

MBA Beam Arrangement (Domestic)(draft)

MBA & APAA Beam Arrangement(draft)

APAA beam （ example ）

Southeast Asia region

A Japanese mainland and the neighborhood

※ Determination of beam arrangement for the Southeast Asia area is around April, 2002.

Fixed beams for overseas : Shanghai, Beijing, Singapore, Hong Kong, Manila, Seoul, (tentative) Bangkok, Jakarta, Kuala Lumpur, Bangalore

MBA Beams for Asia Region(Tentative)

Rx/Tx Port

Example

Shanghai

Beijing

Singapore

(Selective from ground control)

Selective

USAT (45cm)

HDR-VSAT (1.2m)

SDR-VSAT (2.4m)

Hub station (5m)

ATMcell relay

１．５ ～

６．１ Mbps

～ ５１ Mbps

～ １５５ Mbps

１５５ Mbps

USAT (45cm)

HDR-VSAT (1.2m)

SDR-VSAT (2.4m)

Hub station (5m)Bent-pipe

～ ６ ２ ２ Mbps

Bent-pipe～ １ ． ２Gbps

　 Satellite 　Tx Rx

Ground terminals(General)

Antenna Diameter (Tentative)

Link Availability:Domestic 99.5%, Overseas 98%

(m)

Line 1 Line 2 Line 3

UP(1.5Mbps

)

DOWN(155Mbps)

UP(155Mbps

)

DOWN(155Mbps

)

UP(600Mbps

)

DOWN(600Mbps

)

MBA(Domestic) 0.45 0.45~1 1 0.45~1 2~3

MBA(Asia) 1~2 2~3

APAA(Honolulu) 5 15

APAA(Sydney) 3.8 11

WINDS SystemHigh Speed Access with small earth terminal

ＷＩＮＤＳ

1.5Mbps

Key Technologies : 　 ① High output multi-spot beam　 ② Ka band frequency

2m

45cm

Impossible Antenna diameter

2.4m

1.2m

45cm

Existing Japanese satellite

1m

Access Speed

600Mbps

155Mbps

(For Domestic)

Bent-pipe

ＷＩＮＤＳ

Enable to carry out the optimum distribution of the satellite resource.

Demand can be satisfied by changing satellite Tx distribution.

Demand > supply in some regionDemand is not satisfied.

supply

demand

supply

demand

Amount of traffic Amount of traffic

Key Technologies : 　 ① Multi-port amplifier High power output multi-spot beam②

Existing Japanese satellite

WINDS SystemFlexibility against traffic demand

Rain Attenuation Compensation （ draft ）

　 U/L ： Transmit power control at every earth station

　 The amount of U/L 28GHz attenuation is presumed from the amount of attenuation of D/L 18GHz signal.

D/L ： Output control of ＭＰＡ

8 ports of ＭＰＡ

Input 1

Input 2

Input 8

Beam 1 Beam 2 Beam 8

・・・・

Rain

　 Key Technology : 　① On-board ATM exchange technology

A A

B B

C C

A

c

B

AA

CB

BA BX

AA 　 BA BX

CB BX

BXBent-pipe

1 2 3 1 2 3

ＷＩＮＤＳ

Onboard ATM

Data distribution and a link connection can be controlled flexibly.

WINDS System : On-board switching technology (ATM)

Existing Japanese satellite

Key Technologies : Ka band frequency① High-gain Adaptive Phased Array Antenna (APAA)②

High-speed circuit can be set up between any arbitrary regions.

Even within beam coverage there is a limit in circuit speed.

Beam steer able area (use area)Scanning spot beam of the WINDS

ＷＩＮＤＳ

WINDS System : Flexible beam pointing

Existing Japanese satellite

Quasi-zenith Satellite System

About ４５°

Quasi-zenith Satellite System

独立行政法人通信総合研究所（ＣＲＬ）殿資料より

Quasi-zenith

Geo-Stationary orbit

独立行政法人通信総合研究所（ＣＲＬ）殿資料より

EL of Geo Sat

EL > 80°

Quasi-zenith Satellite System

Hospital

Quasi-zenith Satellite System

Examples of i-Space Experiments

●Direct Multicasting to mass family users ●Storing information in home server　・ Local information　・Newspaper delivery　・Net broadcasting　・ Electronic book　・Multimedia educational material　・Disaster information

●High security through high-data-rate multicasting and IPv6

Satellite Multicasting Communications Experiment

WINDS

Information/Contents Distributor

155 Ｍ bps

Contents Distribution

Contents Request

Home Server

Information Network for Land Management and Disaster Monitoring

Forest Fire

Earth Observation Satellites

Urban disaster

Tidal wave

Red water

flood

Glacier

WINDS

Landslide

・ Real-time processor

MinistriesAutonomous

body

Government Applications

Institute

Data Relay Test Satellite

Access to/from small stationProviding disaster information

Satellite Monitoring

Airplane Monitoring

Ground Monitoring

Monitor camera

Monitor camera

・ Database of disaster information

Real-time multicasting of several hundred mega bytes data

Information gathering from disaster area

Pilot Experiments

•Precursor for ETS-VIII and WINDS•Selected 9 experiment themes•Commenced from early 2001

•Joint collaboration with external partners

Pilot Experiments

Pilot Experiments list

Experiment fieldExperiment field Experiment itemsExperiment items

a) Medical ① Mobile hospital

② Medicine at home

b) Educational ③ Field education

c)Internet and multicast

④ IPv6 multicasting transmission experiment

⑤ Radio Internet technology experiment

⑥ Ka-band high speed Internet experiment

d) Disaster management ⑦ Wide area disaster information system

e) Aircraft and ship

communications

⑧ Image data transmission to/from aircraft

⑨ Ship communications and marine science education

Router

Router

Contents Server

IP v6Satellite Receiver

45cm Receiving Antenna

×100 sets

Network Operation Center

Ku-band3 Mbps

Multicasting Transmission

IPv6IPv4

Receiving FacilitiesReceiving Facilities

V4 RouterV4 Router

Transmission Facility

Transmission Facility

IPv6 multicasting transmission experiment

Ka-band real time image datatransmission from aircraft

Fire Earthquake

Communications Satellite

Ka-bandMPEG2〜 8Mbps

Image and Voice

CRLKashima Space Communications Center

Aircraft Antenna

Camera

Idea for collaboration with APAN

Status

Domestic researchers are;

• Making i-Space experiment concept

• Planning to propose for the NASDA pilot experiments as a precursor for the i–Space experiment

• Exploring possibility for collaboration with APAN activities

Requirements from academic researchers

•Monitoring from field sites•ASIAFLUX monitoring, Ecosystem monitoring, Volcano monitoring, etc•Camera image, Observation data gathering•Remote-control of monitoring equipment, etc•Application for Remote sensing ground truth

•Distribution of large volume data•Multicasting of MODIS (NASA/Terra, Aqua)data from data receiving station

•Establishing joint research environment through networking for

•Data access•Distributed database access

•Remote discussions•Multi-points TV conference with multimedia tools

Asia Environment and Natural-Resources Information Network(tentative theme)

WINDSResearchers

Data analysis, discussions

Collaboration with universities, etc

Forest Monitoring

Remote-sensing data

Real-time simulation

Global warming real-time simulation

Agriculture Monitoring

Ecosystem Monitoring

Establishing Monitoring Network for Environment and Natural

Resources in Asia

Field Monitoring

Pilot Experiment Proposal 1

― Field data gathering ―

•Research data from various field is multicasting-distributed to research organizations.•Remote control and a maintenance of monitoring equipment

Field of NIES(Hokkaido)

Field of FFPRI(Ogasawara)

•Joint use of research data•Web server

Domestic research field

Research organization

Overseas research field

FFPRINIES

Cedar pollen monitor

Ecosystem monitor

maintenance

Field of NIESJeju Island(KOREA),Jilin(China), Malaysia

Field of FFPRI(Gunma)

Forest monitor

NARC

Domestic

Pilot Experiment Proposal 2― Multicasting earth observation data and Ground truth

―

Overseas (Southeast Asia)

AIT Field

NASDA EORC

Kumamoto Data Receiving Station

•MODIS image reception around Japan

NARO field(Hokkaido)

•Web for the of processed data•Ground truth by field data

•Multicasting distribution of mass earth observation data

•Verification information from the field

Data-processing organization

Verification information from the domestic field

•MODIS image reception of the outskirts of Southeast Asia

AIT

Comm., Sat.

Earth Observation Satellite

NARO

NARO field(Tsukuba)

AIT

AFFR

NARO

FFPRI

NIESOverseas NOC

Field of AIT

Field of NARO(Hokkaido)

Field of FFPRI (Ogasawara)

Field of NIES (Hokkaido)

NASDA Earth Observation Center

Forest fields

Environment fields

Field for remote-sensing ground truth

Candidate Site for access to WINDS

Field of NIESJeju Island(KOREA),Jilin(China), Malaysia

Communication unit for field

(Tsukuba)

(Gunma)

Agriculture fields

Features of satellite communications

– Multiple Access Capability Efficient ground network strengthening is realized by assigning the

satellite link to a required site, when needed.

– Wide Coverage

For dissolution of Digital Divide, International cooperation, etc

– Multicast Capability

Mitigation of the load of ground NW by satellite multicasting

– Immunity from Terrestrial Disaster

Reservation of a lifeline （ Foothold at the time of ground

infrastructure fragmentation ）

– Global Coverage

Abbreviations

APAA: Adaptive Phased Array Antenna

MBA : Multi-Beam Antenna

MPA : Multi-Port Amplifier

FFPRI: Forestry and Forest Products Research Institute

NIES : National Institute for Environmental Studies

NARO: National Agriculture Research Organization

NARC: National Agriculture Research Center

AFFR: Computer Center for Agriculture, Forestry and Fisheries Research MAFF, JAPAN

AIT : Asian Institute of Technology