A DELAYED VACATION MODEL OF AN M G/1 QUEUE WITH SETUP TIME AND ITS APPLICATION TO SVCC-BASED ATM NETWORKS/

The emerging ATM network will support permanent, semi-permanent and sw itched virtual channel connections (SVCC). A number of simulation stud ies have been carried out to study the performance of SVCCs using empi rical data. The absence of an analytical model has prevented the study of SVCCs under known traffic distributions. In this paper, we develop a new delayed vacation model to facilitate the performance study of S VCCs with configurable inactivity timer in the ATM network interface c ard (NIC). Comparison with simulation results indicates that the propo sed model is very accurate and can be effectively used to optimise the performance of SVCCs by selecting an appropriate inactivity timer.