1. Multimedia Programme Directorate
via
SATELLITE
Paolo De Vincenti
Multimedia Programme Directorate
EUTELSAT 1

2. Satellite networks offer
SATELLITE: Why?? (1)
BANDWIDTH
Satellite networks offer
Broadband Links
Bandwidth independency from the number of users for Broadcast and Multicast transmissions

3. SATELLITE: Why?? (2)
COVERAGE
Satellite coverages enable the international and intercontinental extension of the networks overcoming
geological constraints
poor terrestrial infrastructures

4. RELIABILITY EXPANDABILITY
SATELLITE: Why?? (3)
RELIABILITY
EXPANDABILITY
FLEXIBILITY

5. 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

6. 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

7. Market Based Analysis Market segmentation between:
consumer profile (provision of services to the residential user)
professional profile (provision of services to the business user):
SOHO
corporates
banks
institutions (Schools, Public Administration, Hospitals)

8. Application Based Analysis (1)
Emerging broadband applications
are based on
integration
of existing and new broadcasting applications
and
IP network-based applications

9. Application Based Analysis (2)
CONSUMER PROFILE
Interactive Television
Internet via satellite
e-commerce
e-banking
leasure

10. Application Based Analysis (3)
PROFESSIONAL PROFILE
Software and Data distribution
Business TV
Internet via Satellite
Videoconference
Distance Learning
Telemedecine
Monitoring and Control

11. 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

12. 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

13. EUTELSAT BROADBAND DAMA SERVICES (2)
DSAT 2000

14. Satellite IP Broadcast (1)
Internet households in Europe (in millions)
Source: Morgan Stanley Dean Witter “The European Internet Report, July 1999”
Eutelsat analysis

15. 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
BROADCASTING
MPE*
DTH
CABLE
SMATV
DVB
XDSL
ISDN
PSTN
FRAME
RELAY IP
International
Open
Standards
* Multiprotocol Encapsulation

16. 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)

17. EMP Satellite Applications for the Internet
Consumer & Corporate Direct Access Services including Push & Pull
POP
Backbone
Smartcard**
PSTN
ISP
DTH
Household/
Company PC
Backbone or Content Push Services
Application
Examples:
ISP
-caching
-backbone
access
POP
-streaming
Household/
Company
-access/pull
-push
* POP: Point Of Presence
** Optional

18. THE FUTURE (1)
Enhance the integration of satellite networks with terrestrial ones
Increase the Frequency Bandwidth available on satellites
Decrease the cost of terminals
to increase the use of bi-directional networks,
to make return channel via satellite accessible also to consumers and SOHO

19. THE FUTURE (2) Enhanced satellite/terrestrial networks integration:
integration of DAMA networks with WLL, xDSL
integration of Multimedia Platforms with optical fibers.

20. 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

21. 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

22. System Characteristics
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

23. DVB-RCS (3) Terminal Prices
Achievable bit rate will depend on satellite network characteristics
(G/T, Gateway size, Interference environment, availability target).

24. DVB-RCS (4) Feeders & Gateways MF-TDMA 128-2000 Kbps DVB-S
38 Mbps typically
=2.4m-9m
NCC
THE INTERNET
RCSTs
=60cm-120cm