Table of Contents
SIMULATION AND ANALYSIS OF LOSS IN IP NETWORKS
Road map
QoS parameters for multimedia applications
Sources of packet loss
Packet loss characterization
Unconditional and conditional loss probability
Two-state Markov model (Gilbert model)
Extended Gilbert model
General Markov chain model
Heavy-tailed distribution of packet loss
Collection of packet loss data
ns-2 network simulator
Simulation scenario (1)
Source traffic – Starwars Trace
Simulation scenario (2)
Packet loss rates
Textured dot strip plot
Definition of packet loss episodes
Contribution of loss episodes
Contribution of loss episodes (UDP sources)
Contribution of loss episodes (UDP sources)
Contribution of loss episodes (UDP sources)
Contribution of loss episodes (TCP sources)
Contribution of loss episodes (TCP sources)
Contribution of loss episodes (TCP sources)
Packet loss rates (Mixed UDP and TCP sources)
Contribution of loss episodes (Mixed UDP and TCP sources)
Reason for shorter loss episodes in TCP transfers
Comparison of simulation data with the Gilbert models
Contribution of loss episodes (complex topology)
Analysis of packet loss on multiple time scales (1)
Analysis of packet loss on multiple time scales (2)
Conclusions (1)
Conclusions (2)
Conclusions (3)
Future work
References
References
PPT Slide
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