Abstract

This paper presents a Physical Cell Identity (PCI) self-distribution algorithm for Self Organizing Network (SON). The PCI is used to identify different cells in Long Term Evolution Advanced (LTE-A) network using Self-configuration technique. The PCI assignment of cells would be quite complex for the restricted number of PCI and the heterogeneous structures of LTE-A network. Hence, the PCI self-distribution problem is mapped to a minimal spanning tree (MST) in this paper. A combined MST and graph coloring algorithm is proposed, MATLAB is used in order to optimize the PCI reuse distance and decrease the collision, confusion and multiplexing interference of SON.

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