Performance evaluation of a switch using priority-based dynamic capacity allocation scheme

Performance-analysis of a switching system using priority-based dynamic capacity allocation is presented. The system provides connectivity between a number of point-to-multipoint communication access clusters. The scheduling of traffic transmission at each access cluster is based on a priority schem...

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Bibliographic Details
Published in:IEEE transactions on communications 2003-08, Vol.51 (8), p.1399-1408
Main Authors: Ganesh Babu, T.V.J., Tho Le-Ngoc, Hayes, J.F.
Format: Article
Language:English
Subjects:
Allocations
Analytical models
Clusters
Communication switching
Dynamical systems
Dynamics
Mathematical analysis
Performance analysis
Portable media players
Priorities
Quality of service
Switches
Switching systems
Telecommunication traffic
Traffic control
Traffic engineering
Traffic flow
Wireless LAN
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Summary:Performance-analysis of a switching system using priority-based dynamic capacity allocation is presented. The system provides connectivity between a number of point-to-multipoint communication access clusters. The scheduling of traffic transmission at each access cluster is based on a priority scheme with priority given to real-time (rt) traffic over nonreal-time (nrt) traffic. An analytical model is developed to evaluate the covariance functions of both rt and nrt traffic arriving at the output ports. Aggregate traffic arrival streams are approximated to 2-state Markov-modulated Poisson processes (MMPPs) by matching their statistical characteristics. Analytical and simulation results on performance of an example 4 /spl times/ 4 switch for different traffic loads are discussed.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2003.815060