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International Journal of Modelling and Simulation
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Fast simulation of a voice-data multiplexer

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Abstract

This paper considers the problem of estimating, via simulation, extremely low packet loss rates in a voice-data multiplexer. The multiplexer gives priority to voice packets unless the data queue length exceeds a threshold. To efficiently simulate such low loss rates requires the proper use of importance sampling. The authors describe an importance-sampling technique that is guaranteed to provide an exponential decrease in variance over standard simulation. This importance-sampling technique has two phases, with a different importance-sampling strategy in each phase. Experimental results are presented that demonstrate the effectiveness of this approach.

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International Journal of Modelling and Simulation

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