Intra-flow Loss Recovery and Control for VoIP
Outline
Packet Loss in Voice over IP Networks
Combined Loss Recovery and Control
Questions
Overview
End-to-end identification / recovery
Hop-by-hop loss control
Hop-by-hop loss control: DiffRED
Combined loss recovery and control
Utility (user perception) (objective speech quality measurement)
Conclusions
Background Slides
Metrics: Gilbert model
Metrics: loss run-length model
Metrics
End-to-end measurement setup
Utility: PCM without loss concealment
Utility: PCM with loss concealment
Variability of the utility: PCM with loss concealment
Utility: G.729 with loss concealment
Burst loss lengths: Gilbert model estimation
SPB packet marking
E-Mail: sanneck@ieee.org
Homepage: http://sanneck.net