Current Status of WINDS

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APAN23 Manila (January, 2007)
Current Status of WINDS (Wideband
Internetworking Engineering Test and
Demonstration Satellite)
Toshio Higuchi January, 2007 Japan
Aerospace Exploration Agency (JAXA)
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Objectives of WINDS program
WINDS was established based upon e-Japan
program of Japanese government in order to
contribute a digital-divide free comfortable
communication society by complementary
utilization of ground based and satellite based
communication network which has the following
advantage Wide Coverage, Broader Accessibility
and Survivability against natural disaster JAXA
has been developing WINDS collaborating with
National Institute of Information and
Communication Technology (NICT). JAXA Total
Network System Satellite System,
Multi-Beam Antenna, Multi-Port Amplifier, Active
Phased Array Antenna Ground System
Network Management Center,
Regenerative Ground
Terminals (USAT, HDR-VSAT) Satellite
Tracking and Control System NICT Onboard ATM
Baseband Switching Router Bent-pipe
Ground Terminals (LET, SDR-VSAT)
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Objectives of WINDS program

• 1. Establishment of ultra-high-speed fixed
  satellite communications technologies
• High-Speed communication rate
• Realization of ultra-high-data rate
  communication.
• 155 Mbps for home use (small terminal with
  0.45m diam. class antenna )
• 1.2Gbps for business use (large station with 5m
  diam. class antenna )
• Wide coverage
• Ultra-high-data rate communication in a wide area
  of Asia /Pacific region
• Establishment of total system for high-speed
  satellite based communication network which
  realizes flexible user assignment.
• 2. Verification of ultra-high-data rate satellite
  based communications network Verification of
  management of the ultra-high-data rate satellite
  based communication network and promotion of
  experiments.

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Features of WINDS (1)
High speed data communication with small
terminals by high EIRP with Ka-band multi-beam
antenna and 8 parallel TWTAs
WINDS Conventional Satellite
Antenna Diameter of Ground Terminal
Tx Rx 1.2Gbps Tx Rx 155Mbps Rx 155Mbps Tx 1
.5Mbps
5m
1.2m
2.4m
0.45m
0.75m
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Features of WINDS (2)
Efficient Utilization of Satellite Resource by
Onboard Switching Router.
WINDS Conventional Satellite
A?B
A?B
1 2 3
1 2 3
A A B B C C
???A
XPNDR
B?B B?B
???B
C?B
???C
Onboard Switching Router
A
Deletion of empty cells Prioritize packets in
case of congestion
B
c
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Features of WINDS (3)
Flexible power assignment by Ka-band high power
Multi-Port Amplifier (MPA) and Multi-Beam
Antenna (MBA) Effective power distribution
depending upon requirements of compensation of
rain attenuation and utilization demands
Required power for clear sky
Required power for rainy area
Effective RF power distribution
TX power
TX power
fixed
adjustable
Rainy area
Clear sky area
Clear sky area
Rainy area
Using MPA
Conventional Satellite
WINDS
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WINDS
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External View of WINDS
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APAA (Active Phased Array Antenna)
290mm
650mm
470mm
Active Phased Array Antenna (APAA) can hop its
beams to required points 2msec interval in order
to cover the wide area.
540mm
Rx APAA
Tx APAA
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Antenna Beam Coverage
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MBA Spot Beam Area (Manila Beam)
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WINDS Network
?WINDS Satellite?
?Ground System?
Ka Band
155Mbps
USB CMD/TLM
1.5M/6Mbps
155Mbps
?USAT?
?Tracking Control System?
?Beacon Station?
622Mbps
155Mbps
1.2Gbps
?HDR-VSAT?
1.5M/6Mbps
?SDR-VSAT? ?
?LET? ?
A
B
S
?USAT?
SPOC
SOPS
STAD
SIMS
INIT
?????????
?Network Management Center?
?by NICT
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Ground Terminals vs Data Rate
Bent-pipe 622Mbps2 1.2 Gbps
D/L
WINDS
U/L
Bent-pipe 622Mbps
LET gt5mf
LET gt5mf
SDR-VSAT 2.4mf
SDR-VSAT 2.4mf
ABS DEM/ ATMS/ MOD
155Mbps
1.5155Mbps
HDR-VSAT 1.2mf
HDR-VSAT 1.2mf
1.5 - 6Mbps
155Mbps
USAT 45cmf
USAT 45cmf
?by NICT
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WINDS Ground Station
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Mission Configuration
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ATM Switching Mode
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Multicast Mode
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Bent-pipe Mode
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Current Status

• FY2001 Pre-project start
• FY2003 Phase-B(Basic Design)
• FY2004 Phase-C(Detailed Design)
• FY2006 Phase-D(Assemly,IntegurationTesting)
• Now
• Final Integration of the Flight Model is going on
  at the
• industries facility.
• A series of performance and environmental testing
  will start at JAXAs Tsukuba Space Center next
  year.
• Launch FY2007 by H-IIA launch vehicle

FY Japanese fiscal year (April-March)
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Terrestrial Test System Development
USAT (45cmFclass)
VSAT (1.2mFclass)
Okinawa beacon Terminal
Designed based on RR and ITU-R recommendations
such as S.524-8 Maximum permissible
levels of off-axis e.i.r.p. density S.726-1 Max
imum permissible level of spurious emissions from
VSATs S.729 Control and monitoring
function of VSATs SM.1541-1 Unwanted emissions
in the out-of-band domain
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Interface of WINDS User terminals
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Potential Application of WINDS
Back Bone Patch
Access Patch
In case of disaster Image of stricken area
Information to suffers
Back up for Back bone in case of contingency
Temporary link for special events
Digital Divide Free
Multicast
High speed Internet service with small terminals
E-learning among multi points
Broad Band Internet
Contents distribution
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Preparation for WINDS Experiments

• (1) Pilot Experiments
• In order to firmly facilitate the in-orbit
  experiments of WINS, pilot
• experiments such as data storage and transmission
  experiments, e-learning
• experiments etc. using a commercial
  communication satellite have been
• conducted aiming at,
• - verification of the experiment environment,
  procedure
• - promotion of WINDS utilization
• (2) Basic Experiments
• JAXA and NICT are making plans of basic
  experiments for the engineering
• evaluation of WINDS network system and newly
  developed technology.
• (3) Application Experiments
• Ministry of Internal Affairs and Communications
  will make an announcement
• of opportunity for WINDS application experiments.
• JAXA and NICT will support the ministry to
  facilitate the experiments by
• providing technical support and communication
  capability of WINDS.

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e-Learning (Example of Mesh-type network)
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e-Learning System
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Sentinel Asia Concept
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WINDS Transportable Terminals
Container Type
Portable Type
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Gathering information by wearable camera
WINDS
Disaster-stricken Area
Headquarters
Portable Terminal
Images from the site
Portable WINDS Terminal (Disaster-stricken Area)
Trace of cameraman
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Concept of Disaster Management using Space
Technology in Asia Pacific region
Very large mobile communication satellite
Ultra high-speed communication satellite
Earth observation satellites
Positioning Satellites
Disaster monitoring
Data collection
Information delivering to personal terminals
Information center
Ground observation network
Residents in disaster areas
Providing services directly to personal terminals
in disaster areas
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Milestones for WINDS Experiments
Year
2005
2006
2007
2008 -
Pilot Experiment
Launch
RFP
Basic Experiment
WINDS
Application Experiment
Request for proposal concerning Application
Experiments using WINDS to be announced by
Ministry of Internal Affairs, and Communications
(MIC)
Practical Use
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Call for Proposals
Call for Proposals concerning to the WINDS
applications experiments is underway.

• MIC Press Release November 27, 2006
• http//www.soumu.go.jp/joho tsusin/eng/Releases/Te
  lecommunications/
• news061127 1.html
• Conditions
• Participants may use the transponder for the
  satellite free of charge.
• Equipment for the ground station shall, in
  principle, be prepared by the participants.
  Participants may request to use (borrow) the
  ground station that the satellite development
  agencies plan to install. However, it may not be
  possible to agree to all requests due to limited
  availability.
• All expenses incurred in connection with
  implementation of the experiments shall be borne
  by the participants.
• Application form shall be submitted to MIC from
  February 1st to March 30th 2007.