SRP A Multimedia Protocol - PowerPoint PPT Presentation

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SRP A Multimedia Protocol

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Multimedia Over SRP. Selective Retransmission Protocol. Combination of TCP & UDP ... SRP Implementation. Algorithms. Equal Loss Latency (ELL) Optimum Quality ... – PowerPoint PPT presentation

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Title: SRP A Multimedia Protocol


1
SRP A Multimedia Protocol
  • Ken French
  • George Oprica
  • Mike Piecuch
  • Advisor Mark Claypool

2
Multimedia Characteristics
  • Loss
  • Latency

3
Multimedia Over TCP
  • Guaranteed delivery (No loss)
  • Flow Control
  • Unbounded delay

4
Multimedia Over UDP
  • Best effort delivery (minimal latency)
  • Unbounded loss

5
Multimedia Over SRP
  • Selective Retransmission Protocol
  • Combination of TCP UDP
  • Retransmits a percentage of lost packets
  • Application layer client/server protocol

6
SRP Implementation
  • Algorithms
  • Equal Loss Latency (ELL)
  • Optimum Quality (OQ)

7
Testing Approach
  • UDP blaster
  • Token bucket router

8
Sample Data
9
Low Loss, Low Latency
10
High Loss, High Latency
11
Conclusions
SRP is a good balance Great potential Additional
tuning
12
Future Work
  • Flow control
  • Loss detection
  • Additional algorithms
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