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CRIES Communication Recovery In Emergency
Situation
Jean-Didier Gayrard, Nicolas Chuberre
ALCATEL SPACE INDUSTRIESALCATEL SPACE INDUSTRIES
Workshop on Broadband Wireless Ad-Hoc Networks and Services12th - 13th September 2002, ETSI, Sophia Antipolis, France
Nom Fichier - 04/18/23 - 2M054-1
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CRIES
Role of satellite in Public Safety Wireless network
The assets of the satellite are numerous:simple and fast
deploy a ground station and that’s it!cheap and reliableavailable everywhere
worldwide coverage including remote and out-of-way areas
broadband from few kbps to tens of Mbps
mobile
Satellites should play a central role in Public Safety wireless network
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CRIES
Contents of the CRIES project
Three applicationsShort term recovery of mobile communication in
disaster area to provide temporary GSM communications in disaster
area on short noticeBroadband multimedia communication in emergency
situation to provide temporary broadband communication (DVB,
Internet) in operation areas (overseas theater)Retrieval and broadcasting of data
to provide continuous or temporary collection of scientific and logistic data.
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CRIES
Principle of the CRIES project
It is a joint research project on techniques and technologies for wireless and satellite communication
networks
To federate the research effort of an European team of
Industrials, research centers, universities...
To identify, study, develop and promote innovative techniques
for public safety uses, but also for commercial uses (higher ROI)
and why not: to contemplate standardization
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CRIES
Reasons of the CRIES project
To identify, study, develop and promote innovative techniques & technologies for wireless and satellite communication systems in all domains
Why targeting Public Safety applications ?Challenge: mostly Public Safety networks require
innovative and performing techniquesReasonable scale: Implementation remains in a small
scale (capacity, size and cost)Political support
Submitted as an Expression of Interest to the European Union in the frame of the 6th PCRD
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CRIES
Contents of the CRIES project
1.. Short term recovery of mobile communication in disaster area
2.. Broadband multimedia communication in emergency situation
3.. Retrieval and broadcasting of data
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HAPHAZARDS
System for short term recovery ofmobile communication (GSM) in emergency
During disasters or in emergency situations, mobile networks are damaged or saturated, unluckily it is the time when they are most craved for.
Mobile phone helps to coordinate rescue effort Mobile phone bridges stricken population to the rest
of the world (news, family contact...) Roaming phones could locate victims
The goal of the system is to replace or add phone capacity in the zone of disaster on a short notice for several hours.
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HAPHAZARDS
Altitude3...20 km
Fixed segment of mobile network
Gateway stationsomewherein Europe
Geostationary communicationsatellite over Europe
HAPS for emergencysituation
Rescuer / victimmobile phone
Disaster area ( Ø 1...150 km)
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HAPHAZARDS
HAPHAZARDS (High Altitude Platform for Hazard Situation)
Special designed aircraft circle above disaster area and are equipped with communication payload.
The communication payload relays GSM phone signals from disaster area toward a gateway connected to the public telephone networks.
The connection is made via a geostationary satellite
The airborne communication payload includesa base transceiver station with a smart antenna
pointing to the disaster areaa satcom terminal pointing to the satellite.
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HAPHAZARDS
Communication architecture
Disaster area EuropeGeosynchronous Orbit
HAPS GEO Satellite GatewayMobile User
PSTN1 2 3
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HAPHAZARDS
Enabling techniques
Smart antenna and SDMA pointing accuracy (compensation of aircraft
movement) beam forming for cellular coverage minimization of interference (cohabitation with
existing GSM network) frequency re-use to increase capacity
Airborne SATCOM terminal
Radio-localization
Aircraft techniques unmanned autonomous aircraft power supply
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HAPHAZARDS
Payload preliminary architecture
Frequencyconverter
IBS/IRDTerminalMUX
LNA
HPA
PointingElectronics
Radome
Feeds &pointing
mechanism
HPA
LNA
SDMAPROCESSOR
Radiating elements
BTS control& other function Flight and attitude
information
SATCOM TERMINAL
BASE TRANCEIVER STATION
Nom Fichier - 04/18/23 - 13M054-1
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CRIES
Contents of the CRIES project
1.. Short term recovery of mobile communication in disaster area
2.. Broadband multimedia communication in emergency situation
3.. Retrieval and broadcasting of data
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ESSENCE
System for broadband multimedia communicationin emergency situation
During emergency or crisis times, providing broadband communication is necessary but a difficult challenge
broadband ground networks are not fully available (destroyed, non-existent, unreliable, corrupted…) for establishing:
links with Europe or overseas decision making centers links inside the theater of operations
The goal of the system is to provide broadband capacity with high mobility in the zone of operation for a limited time.
intended to governmental and institutional usean operation zone of about 1000 km wide everywhere in
the world.
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ESSENCE
INTERNET
Local gateway
Theatre of operation
Europe
Gateway
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ESSENCE
ESSENCE (European Satellite System Establishing Networks for Communications in Emergency)
Special designed satellite payload as a piggy back on a geostationary satellite working in the Ka frequency band (30/20 GHz) with On Board Processing.
Intended for a governmental or institutional use within an operation zone (1000 km).
Special designed portable terminals for roving useEasy to use (automatic pointing and log-on)Transportable (small, compact, light and robust)Reliable
Transportable terminal for fixed use transportable and low cost
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ESSENCE
40 cm
60 c
m
Radome
Source, RF front end, modem
BatteryWeight < 10 kg
Ethernet cable or Wireless IR
Laptop computer
Roving terminal
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ESSENCE
Missions and services
Technical challengesUse of compact and power limited terminalsQuick deploymentCohabitation with existing systems (interference and
compatibility)Good quality of service (data rate and availability)
ServicesDVB-S data and video broadcasting @ up to 27 Mbps Internet Access: forward link @ 64 kbps to 27 Mbps,
return link @ 16 kbps to 256 kbps.Peer to Peer bi-directional links: LAN interconnection,
NetMeeting, Voice on IP… @ 64 kbps to 2048 kbps.
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ESSENCE
Communication architecture
High datarate
Broadcast
InternetAccess
Peer to peer TheatreTheatre
INTERNET
Theatre Europe
TheatreEurope
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ESSENCE
Enabling techniques
Satellite smart antenna and SDMAHigh gain and beam forming for cellular coverageMinimization of interferenceFrequency re-use to increase capacity
Low noise RF front end (chill electronics) Improve G/T => reduce terminal power
Onboard demodulation and switchingbased on DVB-RCS standard
Ka-band ground terminals Small aperture antenna, SSPA, LNA, pointing mechanism Transportability and autonomy
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ESSENCE
Payload preliminary architecture
To theater zoneFrom theater zoneTo EuropeFrom Europe
Receive SDMAprocessor
FeederLink
Transmit
Europe
Theater zone
PacketSwitch
Bent pipe
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ESSENCE
Needs for Standardization
Adaptation of DVB-RCS to regenerative payload
Adaptation of (regenerative) DVB-RCS to emergency and governmental use:
Management of terminal location (for SDMA and self-pointing)
Acquisition protocol in wide beam (poor link budget)Protection against listening and intrusion
Evolution of DVB-S Improvement of the threshold (turbocode?) Adaptation to Ka band
multibeam, fade mitigation...
Nom Fichier - 04/18/23 - 23M054-1
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CRIES
Contents of the CRIES project
1.. Short term recovery of mobile communication in disaster area
2.. Broadband multimedia communication in emergency situation
3.. Retrieval and broadcasting of data
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Satellite based system for retrieve and diffusion of monitoring and scientific data
In disasters areas or remote areas, it could be interesting to monitor and to gather scientific, medical and technical data from remotely controlled and autonomous stations.
The goal of the system is to connect through a geostationary satellite, small remote controlled stations to the Internet. Each station has its own IP address and is accessible by means of a client/server mechanism from a PC anywhere in the planet.
Based on DVB-RCS and DVB-S, SNMP, TCP/IP
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INTERNET
PoP
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CRIES
Conclusions
The CRIES project could federate research efforts on the challenging mission of Public Protection Disaster Relief.
The CRIES project addresses PPDR aspects where satellite is the more valuable tool (communication).
The CRIES project should require an important effort of standardization to gain the adhesion of all actors in PPDR
The CRIES project could latter result in operational PPDR systems for the good of everybody (God willing!).
Alcatel Space is seeking European partners to promote this project.
Thank you for your attention...