Broad band_VSAT Network presentation.ppt

VSAT Technologies

1. 1
Broad Band VSAT Network
Presentation

2. 2
Satellite Communication
•Satellite is a microwave device consisting
of receiver, repeater and regenerator in orbit
•Satellite transmission involves sending
signals to satellite that receive, amplify, and
transmit back to earth

3. 3
Satellite Coverage

4. 4
Capabilities of Satellite
Transmission
•Point-to-point transmission
–To transfer large volume of data
–Voice, data, etc communication
–Video conference
•Point-to-multipoint transmission
–Data communication
–Internet
–Video conference
•Broadcast services such as television

5. 5
Satellite Communication is Best
Suited
•For signals originating from a single site
with simultaneous distribution to many
remote sites
•For remote sites which are located in
geographically dispersed areas
•For delivery of large volumes of data to
remote sites with relatively small volume
return channel

6. 6
Multimedia Applications
Applications such as text, image, video and
real time signals served on a common
transmission media are known as
Multimedia Applications.

7. 7
Multimedia Applications
(Cont’d)
•Significant Amount of
Bandwidth is required.
•Broadband Infrastructure is
required.

8. 8
ETC’s Readiness
•ETC is now building such infrastructure in
the capital city and major towns using
optical fiber and ATM switches.
•In order to provide these services for users
at remote and rural sites a Broadband
VSAT network is also under
implementation.

9. 9
What Is Broadband VSAT
Network?
•It is a VSAT network designed to receive
and transmit wideband signals
–TX up to 512 kbps from a remote station
–RX up to 45 Mbps and any number of TV
channels
•A VSAT network that supports multimedia
application.

10. 10
What Is Broadband VSAT
Network? (Cont’d)
A Broadband VSAT Network is a
flexible DVB-IP platform allowing
multimedia services such as digital
video, WAN, Internet, video-
conferencing and rural telephony on a
single infrastructure.

11. 11
Benefits of Broadband VSAT
Network
•Same resource can be shared by a group of
users.
•Efficient Utilization of Resources.
•Multiple remote sites can get access to
information concentrated in capital cities.
•High network availability
•Fast deployment

12. 12
ETC’s BB MM NW Structure
The Network consists of
–MM network in Addis Ababa connecting users’
data center to ETC’s Network
–International & Local Internet Teleports
–Satellite Hub station and remote VSAT stations

13. 13
Network Architecture
Internet
Router
DVB/IP
Encapsulator
DVB Mux
International
Teleport
Addis
Ababa
DVB Mux
DVB/IP
Encap
Router
SCPC
Modem
Addis
Ababa ATM
Network
VoIP
Gateway
Intranet Servers
(Agriculture, Gov't, schools)
PSTN
Education Video
Service
SDH
ATM
ASI
o
p
t
io
n
DVB IRD DAMA
LNB
DVB IRD
BUC
Routero
p
t
io
n
a
l
v
id
e
o
PC
Video
Conferencing
PC
Video
Streaming
Server
TV
FireWall
FireWall
VoIP
Gateway
up to 8 channels
simultaneously
local
Internet
ITMC
ATM
SDH
Sululta Earth
Station
Remote Earth
Station

14. 14
International
Teleport Etc’s HUB
Internet Access Scheme

15. 15Etc’s HUB
Video Conferencing

16. 16
Potential Application Areas
•WAN
•Broadcast
•Internet Connectivity
•Rural Telephony

17. 17
Potential Users
•Investors
•Mining Industries
•Large Enterprises
•Government Networks
•Gas Stations

18. 18
THANK YOU