Tendencies and Challenges in Space Communications

7/31/2019 Tendencies and Challenges in Space Communications

1/48

Panel SPACOMM 2010:

Tendencies and Challeng

S C i i

The Second International Conferenceon Advances in Satellite and Space Communica

SPACOMM 2010

June 13-19, 2010 - Athens/Glyfada, Greece


2/48

S C i t i

Panelists: Marc Berrill, ESA-Estec, The Nether

Sergio Montenegro, German Center (DLR), Germany Petre Dini, Concordia University,

IARIA, USA Mohaned Juwad, Avanti Communica

M d t


3/48


4/48

A set of boxes for Solutions to be

Problems:

long and variable

asymmetric capa variable error pro intermittent conn power, mass and

Solutions:

some ideas from the t

B t i ti l


5/48

Avanti Communications Gro

Tendencies &Challenges in Spac


6/48

Avanti Communications Group

Avantiprovidesbroadbandviasatellite

Firstbroadbandsatellite(HYLAS1)Launch2010

WearetheEuropean#1specialistinSatelliteBroadband

16%ofUKhomescantreceive2Mbpsbroadband

Satelliteaddressablemarketofover1.9millionhomes(Ofc


7/48

Global Internet Consumer Tra


8/48

Scenario1istheworstcasescenarioandassumes:All TV content is delivered on demand and considered

traffic,whichmeansanextraof4.48hperdayby2021ad

thattheuserspendsonline

Therearenolimitationsondataconsumption(GB/month

Scenario2isamorerealisticscenarioandassumes:NotallTVtrafficisdeliveredondemand.Alargepropor

b d d

h

O l

52%

f

h

i

Available Scenarios


9/48

Next generation Kaband satellite VSAT modems a

cheaper,to

as

little

as

300

Incomparisonthe installationandalignmentprocess is

operator250500perVSAT

CheapDoItYourselfMotorisedunitstobeinstalledonV

Finealignmentof0.2degreesforKu/Kasatellites

Motorised Antenna


10/48

Q i ?

THANK YOU


11/48

Challenges in SpaceCommunication:

Space CloudsProf. Dr. Petre Dini

IARIA / USA || Concordia University / Can

[email protected]

PANEL
mailto:[email protected]:[email protected]


12/48

BusinessProcesses

Workflow

s

OutsOuts

EnterpriseEnterprise

MobileMobile

WorkforceWorkforce

DigitalDigitalOfficeOffice

DataData

CenterCenter

InternetInternetServiceService

ProvidersProvidersDigitalDigital

CitiesCities

Mobile ConsumersMobile Consumers

& Workforces& Workforces

DigitalDigital

HomesHomes

Digital Offices (SMB)Digital Offices (SMB)

Factory /Factory /

WarehouseWarehouse

Sensors

Vision:The Service-Oriented Enterprise


13/48

Achievments: Clouds Ubiquitous and pervasive services, as a utility

Anything, anytime, anywhere, anybody

Service oriented: SaaS, PaaS, IaaS, HaaS

IT resources provisioned outside corporate data cent

Resources accessed over the Internet

A virtual computing environment (Vmware, Xen,...)

Abstraction of the hardware from the service

Variable cost of services (QoS)

From CapEx to OpEx

Fl ibl bli d i l d


14/48

Cloud Computing can be pa

- peer-to-peer computing and grid compu

e.g., as an (external) node in a grid wor

- mobile and sensor networks to processamount of data

- a telecom services portfolio, driven byconvergence of broadband, smart mobil

l d


15/48

Clouds: computing platformsociety & business service

Public (mail, schools, banking, financial, personal, rhealth, government, insurance, hospitals, transport

Utility (broadcasting & cable TV, printing & publishiInternet, hotels, retail, waste management, security,

Entertainment (advertising, casinos & gaming, recre

restaurant, travel);

Business (communications, specialty, technology, pchain management, marketing, design, wholesale d


16/48

Hierarchical Network Concept

AccessFunctions

DistributionFunctions

CFun

Topology Change Isolation

Summarizes Routes

Control Routing Table Size

T ffi A i

Forwar

Traffic

T ffi


17/48

Market Analysis: The Past

For 50 years, global spacecommunications has reliedon large, custom, proprietary

technologies driven primarilyby the government

Industry was high cost, riskaverse and specialized

Resulting in long lead timesfor technology development

Leading space contractorsfound it difficult to designdurable, reliable (and

bl ) i *


18/48

Market Analysis: The Present

Space community demanding faster time to orbit and cdecision-making framework for systems buyers

Since 2002, the market is rebounding and redefining its

Increase in demand for specific commercial and military sservices: broadband, data and military communications

Innovation from non-traditional sources with an emphaCommercial of the Shelf (COTS) and IEEE/IETF standtechnology

International open standards shortening spacecraft time-tcycles

Innovation is resulting in flexible, converged, smaller, lintegrated platforms and faster time to market

E i i COTS h l i ill 25 50% i


19/48

Market Analysis: The Future

Commercial, civil and government marketsegments will transition from technology-drivento customer- and application-driven

Merged terrestrial and space solutions will drivedevelopment of new applications, services andcapabilities

Merged terrestrial and space architectures,with cross-linked satellite constellations(HEO/GEO), will become the blueprint forfuture missions and capabilities

New public and private partnerships will driveinnovation, lowering the cost of newapplications, services and capabilities


20/48

IP Networking for Next Generation Glob

IP networking extends theterrestrial network to space todeliver next generation globalservices

IP networking connects widestrange of interoperable

communications servicesleading to new, hybrid services

IP networking enables spaceto Earth communications

i d d


21/48

IP and the Internet are notTCP

Internet has hundreds of protocols runniTCP is just one protocol; many others (Dstreaming video) use UDP instead.

TCP performs poorly over satellite. So?

TCPs operating assumptions: Competiticongestion. Backoff ensures fairness.

Once outside our shared terrestrial Intern


22/48

Different Scheduling Models

Many spacecrafts have just one downlink / connectnetwork.

If you operate and control all the payloads on your they dont have to compete for access to the netwo

You can (manually) schedule them one after anothededicated link.

So TCPs congestion control doesnt help you; it juway and makes resource utilization less efficient .

Coarse-grained scheduling model and shared owne


23/48

DTN

TCP/IP systems are poorly suited for adoption in IPNlinks operate intermittently and over extremely long pro

This consideration leads to exploit a network architectindependent middleware, the Bundle Layer, which is thethe Delay/Disrupt Tolerant Network (DTN) paradigm.

It is not sufficient to offer reliable and efficient transmisInternet, because of the dynamics of the envinvestigation. A more insightful approach is needed.

The key idea for future research is the automaticcapacity of the IPN protocol stack obtained by ado

SPACESPACE BASED INTERNETBASED INTERNET


24/48

SLOT ASLOT A

Low EarthLow Earth

Orbit (LEO)Orbit (LEO)

GeostationaryGeostationary

Orbit (GEO)Orbit (GEO)

SPACESPACE--BASEDBASED

INTERNETINTERNET

StandardizedStandardized

SatelliteSatellite

InterfacesInterfaces

LEO1LEO1

LEO2LEO2

SSP2SSP2SSP1SSP1 SSP3SSP3

Inter SatelliteInter SatelliteLinks (ISL)Links (ISL)

Slot ArchitectureSlot Architecture

SPACESPACE--BASED INTERNETBASED INTERNET

IP SaIP Sa

ArchiArchi

GEOGEO


25/48

The CLEO router experiment

Surrey Satellite Technology Ltd (SSTL)is a leading supplier of small satellitesand has launched the DisasterMonitoring Constellation five

satellites already IP-enabled.

A commercial Cisco 3251 mobile accessrouter was integrated onto the UK-DMCsatellite as a secondary payload.

Launched together with other satelliteson Kosmos-3M from Plesetsk into LEOorbit on September 27th, 2003.

CLEO, the Cisco router in Low Earth


26/48

How far can CLEO [Cisco Low Earth Orbit]IPv6 and IPsec already in orbit

2006IPv4+IPsec can betested on CLEO

IPv4 withIPsec

IPv6and ssh

IPv6 withIPsec


27/48

Packet Switching / Routing in Space impConnectivity and Efficieny

Connectivity: point to point & multi-point

Circuit Based InternetProtocol Based

(IP)(Packet Based)

Connectivity: full mes

GIG usersconnects a


28/48

New Trends in space communications

How to recognise a trend?

Following trends?examples of trends


29/48


How to recognise a trend?

Following trends?examples of trends

which I do not followwhich I followwhich I want to set


30/48


Visibility / Topic in Conferences

Which is the trend?Which is worth to follow?

.


31/48


Visibility / Topic in Conferences


32/48

I will show a few trendsBut It is not a good Idea to follow some t


33/48

Trends which I do not follow


34/48

New Trends in avionics : current trends


35/48

Development e

Eg. SoftwareHardware failureRelativeRisk

Trend: Software goes from hope to main risk


36/48

Old trend:Increase performance evenIf we increase the complexity

-> this will have an END!

Suddenly


37/48

Trends which I support (follow)


38/48

New Trends in avionics and communications: c

Higher CPU Performance -> Virtual processors

More Point to Point connections, less bussesMore Serial links, less parallel links

System as System of Systems:Communicating Building Blocks-> Distributed control Systems


39/48

New Trends in avionics and communications: c

IP in Space (scp, rsh & ssh too?)

SSAN (Solar System Area Network) & WSSAN

Network includes several spacecrafts, ground send users

-> Radical changes in operationsfrom individual manually managed links t


40/48


41/48

New Trends in avionics and communictions: cu

Open Source Era


42/48

My own Trend.


43/48

Global Network:

Earth,up/down-Link

Intra-Spacecrafts,Intra-Component,SW/HW


44/48

1

Tendancies and Challenges in SpaceCommunications

Dr Mark Berrill, ESA Estec, Noorwijk,Netherlands.

Material taken from a presentation by Dr. Julian Santiago Prowald, onbehalf of the Telecommunications Department for ECATAAerospace Business Integration Course (provided by J. Casas,Deputy Head of the Telecommunications Department), ETSI

Aeronuticos, Madrid, 27 Jan 2009

SPACOMM 2010SPACOMM 2010


45/48

22

The social impact of Satcoms in the life of citizens

Satcom has an important economic and social value:Produces revenue, profits, jobs and expertise

Turnover on Satellite manufacturing and Launch: 3-4 BillionEuro/year

Turnover on Lease of Space segment capacity : 13 BillionEuro/year

Turnover Ground segment Industry, including consumerproducts:>30 Billion Euro/year

Turnover on the sale of Satcom based services: >60 Billion

Euro/year


46/48

3

Telecomms remains the mainstay of the

Satellite Industry, and Launchers.139 of 155 satellites launched by Ariane 4were telecommunications satellites.

20 of 21 satellites placed in orbitby Ariane 5 and Soyuz in 2007are Telecommunications satellites.

14th August 2007-14th August 20089 Launches: ATV and 16 Telecom Satellites

Without Telecommunications

satellites the space industrywould not be sustainable

(Arianespace ad. Via satellite, Space News. Feb 2008)


47/48

4

The demand of real time communications between low orbiting satellites or flyingvehicles, calls for the development of an operational EDRS System.

Artemis has demonstrated the performance and operational advantages provided byKa Band and Optical GEO-LEO ISLs, and created a pool of users.

A EDRS system is an infrastructure that will address multiple needs: The most

obvious is the provision of real time communication to the GMES System.

Additionally a EDRS System could be made available as a service to a wide range ofother customers e.g., ESAs Science, Human space flight, Launchers, or toinstitutional customers requiring real time data transfer from instruments to ground.


48/48

5

Data Relay Requirements for GMES

Continuous Coverage of the up to six SentinelSpacecrafts of GMES (1A,1B,2A,2B,3A,3B)

High Data Rates up to 600 Mbit/s for ISL and Ka-

Band Downlink

(Quasi) Real Time Data Download

Documents

Tendencies and Challenges in Space Communications