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In this article, we are dealing with a mechanism of Physical Cell Identifier (PCI) assignment within LTE/LTE-A networks with more than 504 femtocells under one macro cell. After describing the problem we are concerned with, we propose two mechanisms that are able to assign collision-free PCI correctly and solve any confusion events that may arrive later. We also present simulation results based on our implemented algorithms that we propose to support our claims.
Date of Conference: 12-14 Sept. 2012