Abstract
This paper put forward a procedure to find the various performance measures in term of crisp values for fuzzy non- preemptive priority queues with 3-priorities. Here the inter arrival time and service time are Trapezoidal as well as Triangular fuzzy numbers.The basic idea is to convert the fuzzy inter arriva l rates and service rates into crisp values by applying Robust ranking technique.Then apply the crisp values in the traditional queuing performance measure formulas. Ranking fuzzy numbers is an important aspect of decision making in a fuzzy environment.This ranking technique is a systematic procedure ,easy to apply and can be utilized for all types of queuing problems .An illustration is given to establish the performance measures for 3-priority queues.
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