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A Novel Overload Control Strategy for Distributed Mobile Communication Systems
Woo-Goo PARK Je-Hun RHEE Sook-Jin LEE Sang-Ho LEE
IEICE TRANSACTIONS on Communications
Publication Date: 1998/11/25
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Communication Theory
overload control strategy, overload detection algorithm, overload control algorithm, processor utilization, call admission,
Full Text: PDF(698.9KB)>>
In this paper, a new overload control strategy is proposed for a call control processor (CCP) in the base station controller (BSC) and processor utilization is measured. The proposed overload control strategy can regulate the call attempts by adopting measured processor utilization. A function, specifically a linear interpolation function based on Inverse Transform theory is used to convert controlled predictive average load rate in a call rejection rate. Then a call admission rate is obtained from the call rejection rate. Simulation shows that the proposed algorithm yields better performance than the conventional algorithm does under the heavy transient overload status in terms of call admission rate.