A Predictive Call Admission Control Algorithm for Wireless/Mobile Networks

In this paper, a novel method is presented to guarantee the predefined quality-of-service (QoS) requests such as handoff-dropping probability by forecasting the next possible number of handoff dropping calls, using auto regressive moving average (ARMA) model, to update threshold through a close-loop control, while increasing the statistical multiplexing gain (the number of users provided service in a wireless/mobile system at a time) in providing acceptable QoS grades for every connections. We have tested our algorithm through simulations on a wide variety of traffic input. Our simulation results suggest that the forecasting-based approach enables us to achieve a higher level of statistical multiplexing gain while still reliably meeting the target handoff-dropping probability.