A Queueing Model with Loss and Time Priority for Optimal Buffer Control in ATM

손실 우선과 시간 우선이 공존하는 ATM에서의 최적 버퍼 제어를 위한 대기 행렬 모형

This paper deals with a priority queueing model in an ATM system. Two types of customers are considered. Type-1 customers have push-put priority over type-2 customers. Type-1 customers can enter the service only when the number of type-2 customers is less than a threshold T. We derive the joint probability of the number of customers in the buffer, the mean waiting time, and the loss probabilities of each type. We also propose an optimal control policy that satisfies a given quality of service.