Adaptive Networking for Tele-Immersion

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Adaptive Networking for Tele-Immersion

• Presented by Shi Hu (u4063095)

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What is Tele-Immersion?

• Concept Tele-Immersion is the integration of
  collaborative virtual reality with audio and
  video conferencing in the context of data-mining
  and significant computation.
• Ultimate Goal

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Network Requirements for Tele-Immersion
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The Intelligent adaptive networking system
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Network Quality of Service (QoS)

• Quality of Service (QoS) refers to the ability of
  an application to request a guaranteed level of
  networking service in the form of bandwidth,
  latency or jitter.

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Network Quality of Service (QoS)

• Two well-know types of QoS
• Integrated Services (IntServ)
• Differentiated Services (DiffServ)

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Network Quality of Service (QoS)

• Misconception for QoS in CVR
• Once the QoS is available, it will solve all
  CVRs networking problems.
• Bandwidth provisioning is the only form of QoS
  needed by CVR applications.

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Network Quality of Service (QoS)
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Network Quality of Service (QoS)
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Network Quality of Service (QoS)
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Advanced Data Transport Techniques for
Tele-Immersion

• Forward Error Corrected UDP
• Parallel TCP
• Reliable Blast UDP

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Forward Error Corrected UDP
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Forward Error Corrected UDP
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Forward Error Corrected UDP
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Forward Error Corrected UDP
Packet Loss
UDP 1.90
FEC 0.05
UDP with congestion 17.40
FEC with congestion 4.15
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Long Fat Network Problem
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Parallel TCP Socket Striping
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Parallel TCP Socket Striping
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Reliable Blast UDP
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Reliable Blast UDP
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Reliable Blast UDP
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Reliable Blast UDP
Sending Bandwidth (Mbps) Effective Bandwidth (Mbps) Number of NAKs
20 19.7 0
40 38.5 0
60 54-57 1
80 56-70 2
90 61-77 3
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Future Research

• To defined QoS in application developers view.
• To characterize protocols, QoS mechanisms and
  computational resources as parameters.
• To find mappings between QoS descriptions and
  network characterization.
• To find prediction models for dynamic network
  situations.
• To test predictions.