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CRIES Communication Recovery In Emergency

Situation

Jean-Didier Gayrard, Nicolas Chuberre

ALCATEL SPACE INDUSTRIESALCATEL SPACE INDUSTRIES

[email protected]

Workshop on Broadband Wireless Ad-Hoc Networks and Services12th - 13th September 2002, ETSI, Sophia Antipolis, France

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Tous droits réservés © Alcatel Space Industries All rights reserved

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


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

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CRIES





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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...

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CRIES





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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...

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