Optical buffer modelling for performance evaluation considering any packet inter-arrival time distribution

In this paper we present an exact analytical model for the FIFO delay-line buffer in an asynchronous network scenario considering that packets arrive to the buffer following any inter-arrival time process. The model enables us to study the impact that different inter-arrival distributions have on the buffer performance and design process. The accuracy of the model is compared with simulations for deterministic, uniform, exponential and Weibull inter-arrival time distributions. Then, the effects of these distributions, input load and delay line spacings on the buffer performance are investigated.