Characteristics of assembled bursts in OBS network under correlated input traffic

In this paper, a general analytical model for computation of burst length distribution and burst assembly time distribution for different burst assembly algorithms, under correlated input traffic, at the output of an edge optical burst switching node, has been developed. The model is developed by extending our previous work that was capable of capturing the effect of correlation only for time based burstifier. The effects of correlation in all three static kinds of burstifier has been studied and it is found that variance of both burst length distribution and assembly time distribution increase with increase in input traffic correlation. It is also observed that for a dual threshold based burstifier, the probability of reaching the thresholds change significantly with change in source correlation. Approximation techniques, to reduce the time complexity of the model, have also been suggested.