Effective bandwidths at multi-class queues
Queueing Systems: Theory and Applications
IEEE/ACM Transactions on Networking (TON)
An approximation method for complete solutions of Markov-modulated fluid models
Queueing Systems: Theory and Applications
IEEE Journal on Selected Areas in Communications
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Markov modulated fluid models are widely used in modelling communications and computer systems. In the AMS (Annick, Mitra, Sohndi) model, heterogeneous, bursty sources modeled by multidimensional Markov processes are superimposed or multiplexed together to drive a fluid buffer. The performance of the system is measured by the steady state probability that the buffer exceeds a high level. The exact solution to this problem derived by AMS requires too much computation to be used on-line. Here we derive an upper bound for the above probability which is fast to compute and accurate enough for practical use.