Efficient Approximation of Multiplexed Voice Traffic

O. Gusak, N. Oliver, and K. Sohraby (USA)


Discrete Event Simulation, Simulation Optimization,Voice Traffic Model, Poisson Approximation.


In order to reduce the time complexity of the model of a large communication system where the traffic consists of many individual packetized voice flows, we approximate the traffic by a single equivalent flow whose effects in the model are similar within specified confidence bounds but whose time complexity in the running model is greatly reduced. We demonstrate that an aggregation of 300+ voice flows, each modeled by an on-off model of talk and silence and a constant packet interarrival time in the "on" state, is quite accurately modeled by a single Poisson distributed equivalent flow.

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