An adaptive connection admission control scheme for ATM networks

A new adaptive connection admission control scheme is proposed. The aggregate statistics of all calls in progress are continuously measured and new calls are considered as CBR at their peak during certain warming up period. The main features of our proposed CAC scheme are (1) an adaptive mechanism which updates the warming up period based on the traffic conditions, (2) an accurate mechanism to predict cell loss, and (3) a simple and conservative way to consider call departures. We demonstrate by simulation that the scheme is more efficient than several other schemes