A heuristic approach for measurement-based admission control with variable-size window

A measurement-based admission control algorithm using a variable-size window is developed. The size of the measurement window is varied according to the estimate of the variance of the traffic in the measurement window. We use a small measurement window when the traffic is smooth (small variations) and we use large measurement window when the traffic is bursty (large variations). Our simulation studies provide results that complement two existing works (see Breslau, L. et al., 2000; Lee, S.K. and Song, J.S., 1998). On the one hand, we conclude that when the desired utilization rate is low, measurement-based admission control algorithms using a variable-size measurement window can improve the performance over algorithms using a fixed-size window. On the other hand, when the desired utilization rate is high, measurement-based admission control algorithms using a variable-size window and using a fixed-size window provide nearly identical performance results