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Transcript of Multiplexing: Performance Measures and Engineering Issueshzhang/courses/6290b/Lectures/3 -...
Multiplexing: Performance Measures and Engineering Issues
Hongwei Zhang
http://www.cs.wayne.edu/~hzhang
Acknowledgement: this lecture is partially based on the slides of Dr. D. Manjunath, Dr. Anurag Kumar
Outline
� Network performance and source characterization
� Stream session in packet networks
� Circuit-switched networks
� Elastic transfer in packet networks
� Packet multiplexing over wireless networks
Outline
� Network performance and source characterization
� Stream session in packet networks
� Circuit-switched networks
� Elastic transfer in packet networks
� Packet multiplexing over wireless networks
Two alternatives
Packet network: a schematic view
Two types of traffic
History
For calculating Call blocking probability
History (contd.)
Outline
� Network performance and source characterization
� Stream session in packet networks
� Circuit-switched networks
� Elastic transfer in packet networks
� Packet multiplexing over wireless networks
Stream sessions in a packet network: delay guarantees
� Voice all as an example of a stream session
Network delay, delay jitter, & playout delay
Voice call and delay (contd.)
voice activity detection
QoS objective (i.e., voice quality)
Chapter 4
Chapter 5
Outline
� Network performance and source characterization
� Stream session in packet networks
� Circuit-switched networks
� Elastic transfer in packet networks
� Packet multiplexing over wireless networks
Circuit-multiplexed networks
Design issues
Chapter 6Portion of traffic that cannot be
accommodated on the first-choice route
Outline
� Network performance and source characterization
� Stream session in packet networks
� Circuit-switched networks
� Elastic transfer in packet networks
� Packet multiplexing over wireless networks
Elastic transfers in a packet network: feedback control
Congestion control, feedback, bandwidth sharing
Chapter 7
Outline
� Network performance and source characterization
� Stream session in packet networks
� Circuit-switched networks
� Elastic transfer in packet networks
� Packet multiplexing over wireless networks
Packet multiplexing over wireless networks
Modified view of networking over wireless
Chapter 8