MULTIMEDIA
via
SATELLITE
Paolo De Vincenti
Multimedia Programme Directorate
EUTELSAT
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SATELLITE: Why??
(1)
BANDWIDTH
Satellite networks offer
 Broadband Links
 Bandwidth independency from the number of
users for Broadcast and Multicast
transmissions
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SATELLITE: Why??
(2)
COVERAGE
Satellite coverages enable the international
and intercontinental extension of the
networks overcoming
 geological constraints
 poor terrestrial infrastructures
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SATELLITE: Why??
(3)
RELIABILITY
EXPANDABILITY
FLEXIBILITY
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SATELLITE SERVICES EVOLUTION
(1)
 FROM
 CENTRALISED INSTALLATIONS ,
 LARGE DIMENSIONS (Dant from 13 m to 3.7 m),
 HIGH POWER (Pout from 1500 W to 150 W)
 HIGH INVESTMENT AND OPERATION COSTS
 TO
 DISTRIBUTED TERMINALS,
 SMALL DIMENSIONS (Dant from 3.7 m to 60 cm),
 REDUCED POWER (Pout from 150 W to 1 W)
 REDUCED INVESTMENT AND OPERATION COSTS
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SATELLITE SERVICES EVOLUTION
(2)
SATELLITE PARTECIPATES IN THE GENERAL
EVOLUTION OF TECHNOLOGY:
- WIDESPREAD DIFFUSION OF THE INSTRUMENTS OF
INFORMATION TECHNOLOGY
- WIDESPREAD ACCESS TO AN INCREASING NUMBER
OF INFORMATION
- DIFFUSION OF THE CAPABILITY OF CREATING AND
TRANSMITTING CONTENTS
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Market Based Analysis
Market segmentation between:
 consumer profile (provision of services to the residential
user)
 professional profile (provision of services to the business
user):


corporates


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SOHO
banks
institutions (Schools, Public Administration, Hospitals)
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Application Based Analysis
(1)
Emerging broadband applications
are based on
integration
of existing and new broadcasting applications
and
IP network-based applications
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Application Based Analysis
(2)
CONSUMER PROFILE
 Interactive Television
 Internet via satellite
 e-commerce
 e-banking
 leasure
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Application Based Analysis
(3)
PROFESSIONAL PROFILE
 Software and Data distribution
 Business TV
 Internet via Satellite
 Videoconference
 Distance Learning
 Telemedecine
 Monitoring and Control
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PROFESSIONAL NETWORKS
EUTELSAT BROADBAND DAMA SERVICES
Multimedia Mesh Networks
 Based on Bi-directional Balanced Terminals
(antenna diameter D from 1.2 m to 2.4 m,
SSPA output from 2 W to 25 W)
 Demand Assignment of Satellite capacity to
each terminal means
 Reduced Space segment costs
 Optimised transponders use
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EUTELSAT BROADBAND DAMA SERVICES
(1)
 Adaptive transmission bit rate
(from 64 KB/sec to 4 Mb/sec)
 Access Scheme: Multifrequency TDMA
 Network reconfigurability in real-time
 IP, Ethernet, ATM, Frame Relay, ISDN interfaces
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EUTELSAT BROADBAND DAMA SERVICES
(2)
DSAT 2000
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Satellite IP Broadcast
(1)
Internet households in Europe (in millions)
total internet users
broadband users
130.3
123.1
113.6
103.1
91.4
80.0
69.0
47.6
34.2
19.9
0.2
1999
15.2
3.0
20.3
26.2
32.7
39.0
45.5
50.4
6.3
2000 2001 2002
2003 2004
2005 2006 2007
2008
Source: Morgan Stanley Dean Witter “The European Internet Report, July 1999”
Eutelsat analysis
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Satellite IP Broadcast
(2)
Based on the encapsulation of IP packets into DVB
Transport Stream. The DVB Stream is received via a
DTH antenna and IP packets are de-encapsulated by an
interface card.
INTERNET
IP
BROADCASTING
International
Open
Standards
DVB
XDSL
DTH
PSTN
CABLE
SMATV
ISDN
FRAME
RELAY
MPE*
* Multiprotocol Encapsulation
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Satellite IP Broadcast
(3)
EUTELSAT Multimedia Platform (EMP) Concept
 A platform providing a variety of multimedia services
 Platforms built following a standard EUTELSAT
specification
 Utilization of low cost receive equipment
 Utilization of terrestrial return line
 Utilization of coverages and orbital positions particularly
suitable for the service and market addressed
(7°&10°East, 8°West)
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EMP Satellite Applications for the Internet
Application
Examples:
•ISP
-caching
-backbone
access
•POP
-streaming
-caching
•Household/
•Company
-access/pull
-push
* POP: Point Of Presence
** Optional
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DTH
Household/
Company
ISP
Backbone
Backbone
POP
PC
PSTN
Smartcard**
Backbone or
Content Push
Services
Consumer & Corporate
Direct Access Services
including Push & Pull
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THE FUTURE
(1)
 Enhance the integration of satellite networks with
terrestrial ones
 Increase the Frequency Bandwidth available on satellites
 Decrease the cost of terminals


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to increase the use of bi-directional networks,
to make return channel via satellite accessible also to
consumers and SOHO
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THE FUTURE
(2)
 Enhanced satellite/terrestrial networks integration:

integration of DAMA networks with WLL, xDSL

integration of Multimedia Platforms with optical fibers.
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THE FUTURE
(3)
 Introduction of Ka band
 Increase of satellite G/T through the use of multiple
spot beam coverages to reduce the size and power of
the terminals
 Improvement of On-Board Processing (OBP)
techniques for on-board cross connection between
spot beams
 Standardization of systems to ensure interoperability
and large volume production of terminals
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DVB-RCS
(1)
Development Program
Objective
 to design and develop bi-directional satellite terminals
meeting the DVB-RCS standard and therefore ensuring
interoperability between terminals and HUBs from
different manufacturers.
This way
 to ensure large volume production for terminals
and therefore
 to decrease the price of terminals
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DVB-RCS
(2)
System Characteristics
 Multifrequency TDMA Access Scheme
 MPEG Profile
 Turbo Coding
 Capacity request signaling
 Standardized ODU/IDU Interface
 System flexibility to work in Ku-band and/or Ka-band
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DVB-RCS
(3)
Terminal Prices
Peak
Bitrate
RCS terminal
size
Target price
Keuros
Market
sector
Volumes
128 Kbps
512 Kbps
2000 Kbps
2 – 4 Mbps
60 cm, 0.5W
90 cm, 1.0W
120 cm, 2.0W
1.2-1.8 m, 2-8W
0.5 - 1.5
2-3
3-5
5 - 15
Consumer
Prosumer
Corporate
Broadcast
> 200 k
10 to 50 k
5 to 20 k
<1k
Achievable bit rate will depend on satellite network characteristics
(G/T, Gateway size, Interference environment, availability target).
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DVB-RCS
(4)
MF-TDMA
128-2000 Kbps
DVB-S
38 Mbps
typically
Feeders &
Gateways
=2.4m-9m
NCC
RCSTs
=60cm-120cm
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THE INTERNET
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