A Novel Overload Control Strategy for Distributed Mobile Communication Systems

Woo-Goo PARK  Je-Hun RHEE  Sook-Jin LEE  Sang-Ho LEE  

Publication
IEICE TRANSACTIONS on Communications   Vol.E81-B   No.11   pp.2131-2140
Publication Date: 1998/11/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Communication Theory
Keyword: 
overload control strategy,  overload detection algorithm,   overload control algorithm,  processor utilization,  call admission,  

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Summary: 
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.