SBN Expansion

1
SBN Expansion

• 3-31-04

2
Requirement

• Deliver the ever increasing data volume to the
  field.
• Data delivery requirements to the field are
  expected to increase by 10 fold by 2010.
• A scalable delivery method is needed to keep up
  with the demand.
• An open standard solution will allow procurement
  of COTS equipment.

3
The Plan

• Use Digital Video Broadcast Satellite (DVB-S)
  technology to deliver high volumes of data to the
  field.
• Use data compression to free up a SBN T-1
  channel.
• Use freed up T-1 to introduce DVB-S technology to
  17 Test sites.
• Roll out DVB-S system wide.

4
Benefits of DVB-S

• Current SBN technology requires deployment of a
  new proprietary demodulator to the field for
  every T1 (1.5 Mbits/sec) increase in data
  capacity.
• New DVB-S technology is linearly scalable to meet
  data requirement demands using a single
  demodulator up to 43 Mbits/s per demodulator (vs.
  28 T-1 demodulators).
• DVB-S technology is a one channel solution.
• The inherently bursty data of SBN is transmitted
  much more efficiently over a single channel, as
  opposed to discrete T1 channels.
• DVB-S technology is open source, and open
  standard.
• Interoperability and competition among vendors.
• A DVB-S demodulator is a fraction of the cost of
  the existing proprietary SBN demodulators.

5
New Gateway Channel (TG2)

• As part of the SBN expansion plan, the freed up
  SBN T1 channel will be used to deliver additional
  data (using DVB-S technology) to the field,
  effectively doubling the existing Gateway channel
  data capacity.

6
SBNs Future

• After the DVB-S technology is proven, SBN will
  become a single channel carrying all SBN data
  using DVB-S.
• Data requirements will be evaluated yearly and
  the SBN channel will be scaled accordingly.

7
Migration to high capacity, single DVB-S SBN
channel
GOES WEST 1.544 Mbits/sec
GOES EAST 1.544 Mbits/sec
OCONUS 772Kbps
TG 1.544 Mbits/sec
Past SBN Configuration Through 8-5-03
Past SBN Configuration.
Compressed GOES WEST 1.544 Mbits/sec
Compressed GOES EAST 1.544 Mbits/sec
OCONUS 772Kbps
TG 1.544 Mbits/sec
SBN configuration from 8-5-03 through 8-12-3
SBN configuration after compressing GOES feeds.
Combined GOES East/West 1.544 Mbits/sec
Combined GOES East/West 1.544 Mbits/sec
OCONUS 772Kbps
TG 1.544 Mbits/sec
SBN configuration from 8-12-03 through 8-19-03
SBN configuration after combining GOES feeds.
Combined GOES East/West 1.544 Mbits/sec
OCONUS 772Kbps
TG 1.544 Mbits/sec
DVB-S Test Signals 1.544 Mbits/sec
Current SBN configuration
Current SBN configuration transmitting test DVB-S
signals On the former GOES West channel.
8
Migration to high capacity, single DVB-S SBN
channel