A NOVEL OVERLOAD CONTROL STRATEGY FOR DISTRIBUTED MOBILE COMMUNICATION-SYSTEMS

In this paper, a new overload control strategy is proposed for a call control processor (CCP) in the base station controller (BSC) and proce ssor utilization is measured. The proposed overload control strategy c an regulate the call attempts by adopting measured processor utilizati on. A function, specifically a linear interpolation function based on Inverse Transform theory is used to convert controlled predictive aver age load rate in a call rejection rate. Then a call admission rate is obtained from the call rejection rate. Simulation shows that the propo sed algorithm yields better performance than the conventional algorith m does under the heavy transient overload status in terms of call admi ssion rate.