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Buffer overflow probability for multiplexed on-off VoIP sources

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5 Author(s)
J. A. Schormans ; Dept. of Electron. Eng., Telecommun. Res. Group, London, UK ; J. M. Pitts ; E. M. Scharf ; A. J. Pearmain
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The authors analyse the multiplexing of a large number of independent and homogenous on-off traffic sources into a single packet switched buffer: a possible model of VoIP. It is shown how a previously developed formula for queues can be applied to this system, allowing accurate calculation of the buffer overflow probability via the burst-scale decay rate of the buffer state probabilities. Numerical results comparing the expression with simulation and with other approximations shows that the approach gives superior accuracy, with equivalent complexity

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Electronics Letters  (Volume:36 ,  Issue: 6 )