Novel resource assignment method for balancing the Inter-Cell Interference in OFDM cellular networks

In this paper, a novel Inter-Cell Interference Coordination (ICIC) scheme is proposed to mitigate the downlink inter-cell interference (ICI) in Long Term Evolution (LTE) networks. The proposed method partitions the cells into 3 regions and uses predefined resource allocation schemes to assign the resources to each cell of the cluster. The proposed method also introduces an interference balancing method between neighboring cells based on an inter-cell coordination mechanism. Simulation results show that the proposed scheme is better than compared schemes. The results also show that the scheme can greatly improve the spectral efficiency of system and users although it reduces the user level fairness.