A performance assessment approach for quality degradation in ATM network

A new approach to evaluating the degradation of cell delay and loss performance in ATM networks is described. The main concept is to assess a weighted penalty to the expected performance from the view point of the arriving cell. We propose a new method to impose a penalty to the system such that the greater the difference between the target performance and the observed performance, the higher the penalty given to the system. The performance measures under consideration are the delay variance and loss probability of the arriving cells, which can be derived from the information of buffer status. We also present the result of the numerical experiments and discuss the implication