We consider a queueing model used previously (Scholz and Sunde, 1998) to model a military High Frequency (HF) communication network. Our discussion has moved from fhe original case where we aimed to maintain a high grade of service for the highest priority traflc classes. The characteristics of this network were that link set-up time was longer than the service time: it often took longer to establish the connection than for the actual transmission of the message.In paper (Pearce et al., 2000) we looked at a polling model with multiple servers and multiple queues, with each server visiting the queues according to a server allocation algorithm. The queueing system comprises a set of waiting lines to which requests arrive to be served by a pool of servers. We restrict our attention to the case where movement of servers fYom queue to queue does not happen in zero time.Our discussion focuses on the basics of the two-queue situation. A distinguishing feature of the application is that the service times for procedures are much smaller than the walk time of a server or the maximum permissible waiting time allowed for a highest priority customer. We look at the option of dedicated servers and diflerent walk times (variable and constant) and solve the problem by extending the server stay at each queue until the arrival time at the other is such that the maximum permissible waiting time there is close to expiring.In this paper we look at the way this queueing model can be applied to a medical emergency room, where setting up for certain surgery procedures takes longer than the actual procedures themselves. SignrJcance of this model is applicability to dflerent problems -?om communication networks to medical emergency room.
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