Neighbor Cell List Optimization for Femtocell-to-Femtocell Handover in\n Dense Femtocellular Networks

Dense femtocells are the ultimate goal of the femtocellular network\ndeployment. Among three types of handovers: femtocell-to-macrocell,\nmacrocell-to-femtocell, and femtocell-to-femtocell, the latter two are the main\nconcern for the dense femtocellular network deployment. For these handover\ncases, minimum as well appropriate neighbor cell list is the key element for\nthe successful handover. In this paper, we propose an algorithm to make minimum\nbut appropriate number of neighbor femtocell list for the\nfemtocell-to-femtocell handover. Our algorithm considers received signal level\nfrom femto APs (FAPs); open and close access cases; and detected frequencyfrom\nthe neighbor femtocells. The simulation results show that the proposed scheme\nis able to attain minimum but optimal number of neighbor femtocell list for the\npossible femtocell-to-femtocell handover.\n