Performance Loss Due to Imperfect Knowledge of Offered Load in CAC Policies
Muhammad Naeem, Daniel C. Lee · 2008
In this paper, we investigate the effect of imperfect traffic load assessment on the performance of call admission control (CAC) policies in a circuit-switched cellular network. We study two policies that are designed to achieve optimal average data throughput of the system - the optimal stationary randomized call admission control policy (DCA-CAC) and the optimal static fixed-set-partition policy (FCA-FSP). We analyze and numerically evaluate the performance of these polices, which are optimized for somewhat erroneous assessment of the subscribers' call traffic load. The evaluation is done in two-fold 1) impact on throughput 2) impact on blocking probability.