Distributed Load Balancing with Handovers over Mobile Cellular Networks Using Supervisory Control

Heejung BYUN  

IEICE TRANSACTIONS on Communications   Vol.E94-B   No.9   pp.2543-2548
Publication Date: 2011/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.2543
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network Management/Operation
load balancing,  supervisory control,  

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This paper proposes a scheme for distributed load balancing in mobile communication networks based on a supervisory control framework. Using load information exchanged with neighbors, the “supervisors” that reside in the base stations distribute the load among cells by controlling handover parameters in a distributed manner. The supervisors are designed so that the load difference among neighboring cells are kept under a pre-defined threshold. Simulations show that our approach can effectively balance load among cells and thus reduce call blocking rate of the overloaded cells.