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http://dx.doi.org/10.3745/KIPSTC.2002.9C.3.399

Performance Evaluation of Multiservice Network Switch for Dynamic Constant-and Adaptive-rate Services  

Lee, Tae-Jin (Dept.of Information Communication Engineering, Sungkyunkwan University)
Abstract
We consider design of multiservice network link, in which connections of constant- and adaptive-rate services arrive and leave dynamically. We propose performance analysis and design methods of these dynamic multiservice networks. A multiservice network link is modeled by a Markov chain, and data rates for adaptive-rate connections are derived using QBD (Quasi-Birth-Death) processes and matrix-geometric equations. We estimate average number of adaptive-rate connections, average data rate and average connection delay. The performance of constant-rate connections is determined from the blocking probability of the connections. Based on the performance of constant-and adaptive- rate connections, we propose a design methods of a network link to satisfy performance requirements of constant- and adaptive-rate connections (data rates, delay, blocking probability). Our methods can be used for the analysis and design of network switch supporting dynamic data and voice (video) traffic simultaneously.
Keywords
Multiservice Networks; Constant-rate service; Adaptive-rate service; Markov chain; QBD process;
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