International Journal of Engineering and Science Invention (IJESI)
LTE (Long Term Evolution) is one of the technologies of choice for 4G mobile communication so far, it has been deployed by 248 operators in 87 countries worldwide (Chao, 2012). Heterogeneous Network (HetNet) is the candidate for next generation mobile communication because of its robustness. However inter-cell interference is deterrent factor for achieving effective HetNet deployment. In this paper, the authors give overview of the causes of this interference and described some research advances underway to tackle the challenge and also provide insight for further research areas for achieving effective inter-cell interference coordination in HetNet LTE-A for next generation network.