Joint Mobility Load Balancing and Inter-Cell Interference Coordination for Self-Organizing OFDMA Networks

Abstract

We consider the joint load imbalance and inter-cell interference (ICI) problems and propose a novel mobility load balancing (MLB) algorithm that is compatible with the well-known ICI coordination (ICIC) approaches relying on fractional frequency reuse (FFR). The algorithm is simulated both under the FFR as well as reuse-1 and - 3 frequency planing schemes. In addition, the simulations are performed with commonly used schedulers which show that the proposed MLB+ICIC algorithm provide significant improvements in the degree of load balance, cell-edge spectral efficiency and the number of unsatisfied users.