An hierarchical approach for inter-cell scheduling in interference-limited cellular networks

Interference management is one of effective means of improving system throughput, which is particularly important for the emerging 4G wireless networks that demand increasing data rates. In order to mitigate the inter-cell interference we evaluate the performance of an hierarchical centralized inter-cell scheduling method which aims at improving the system throughput. The proposed algorithm, which is based on an existing one, besides selecting the BSs allowed to transmit, performs an exhaustive power control in order to find the optimal power levels of transmitting BSs. Simulation results show that the proposed method outperforms classical approaches in terms of spectral efficiency improvements.