1. Channel
Bonding
..the new guy
in DVB-S2X

2. Hello!Fragiadakis Giorgos
gfragi@gmail.com
Assignment for “Satellite Communications”, Fall Semester
2014
Professors: Vassilis Dalakas
Georgia Dede
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3. General scope
Let’s look back
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4. Instead of Definitions1
￭ Channel
￭ is used to convey information
￭ certain capacity (Hz or bits per second)
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￭ Throughput
￭ performance of a system
￭ completed tasks
￭ over specific period

5. “
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Shannon's capacity law
indicates that the theoretical
capacity limit increases
linearly with bandwidth.
Therefore, the simplest
solution to increasing the rate
of any given system is to
expand its operating
bandwidth.

6. Instead of Definitions2
￭ Channel (or Ethernet) Bonding
￭ is a logical procedure for utilizing multiple
connections (channels) for increased throughput
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7. Instead of Definitions4
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TheProtocols
￭ Transport Stream (TS)
￭ audio, video & data
communications
transmission protocol
￭ multiplexing
￭ transmitting
￭ Generic Stream
Encapsulation (GSE)
￭ defined by DVB (ETSI)
￭ alternative solution of
transmission
￭ carry packet oriented
protocols (e.g. IP)
￭ efficient encapsulation of
IP datagrams

8. S2X welcome’s Channel Bonding
The necessity and the implementation
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9. Viewers calling 9

10. CATV (digital cable TV)
￭ assigns one QAM (Quadrature Amplitude Modulation)
channel for an individual stream
￭ 64-QAM & 256-QAM the common method
￭ 38.47Mbps data rate carried by 256-QAM
Today’s facts
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11. 200Mbps
the data transfer rate for UHDTV
1024/4096-QAM
is needed to be “multiplied” by 4 or 3, in order
to transfer 8K UHDTV video
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12. The implementation
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One higher-speed data
stream separated into
multiple data packets
sent through multiple
independent channels,
and combines data
packets received on
multiple independent
channels into one higher-
speed data stream.
Design of Out-of-Band Protocols to Transmit UHDTV, Sunsik Roh, 2012

13. Getting deeper
Principle of transmission over TS transmission
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14. 14
Example of GSE channel bonding transmission

15. 15
Example of GSE channel bonding at the receiver

16. Conclusion
the good and the bad
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17. Good and Bad about CB
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Positives
￭ helps clients/providers to
get/offer higher quality of
service in house.
￭ maximize capacity of
channel
￭ take the maximum
advantage of spectrum
￭ increase the data transfer
speed with existing copper
wire
Negatives
￭ restricts the available
channels
￭ makes interferences
between channels more
often

18. It’ easy to understand
￭ More & more Direct-to-Home (DTH)
applications are being served over satellite
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￭ Direct to Home (DTH) applications increase
profitability
￭ Channel Bonding is a cheap and simple
method to be implemented

19. It’s better with
company..
even if its in parallel
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20. Thanks!Any questions?
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21. Transport Stream
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22. TS vs GSE
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