Performance Analysis of a Statistical Multiplexer with Three-State Bursty Sources
Commun. Korean Math. Soc. 1999 Vol. 14, No. 2, 405-423
Bong Dae Choi, Yong Wook Jung
Korea University, Kyonggi Institute of Technology
Abstract : We consider a statistical multiplexer model with finite buffer capacity and a finite number of independent identical 3-state bursty voice sources. The burstiness of the sources is modeled by describing both two different active periods (at the rate of one packet per slot) and the passive periods during which no packets are generated. Assuming a mixture of two geometric distributions for active period and a geometric distribution for passive period, we derive the recursive algorithm for the probability mass function of the buffer contents (in packets). We also obtain loss probability and the distribution of packet delay. Numerical results show that the system performance deteriorates considerably as the variance of the active period increases. Also, we see that the loss probability of 2-state Markov models is less than that of 3-state Markov models.
Keywords : statistical multiplexer, bursty sources, performance analysis
MSC numbers : 60K25, 60K30, 90B22
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