Inter-cell interference coordination for LTE systems

The wide spread usage of mobile smart phones has put an emphasis on high efficiency of wireless networks. Inter-cell interference coordination (ICIC) techniques not only help improve cellular data coverage but also allow more efficient use of the valuable wireless spectrum. This paper discusses soft frequency reuse (SFR), a form of ICIC, for LTE systems. We develop a SFR approach that takes both throughput and fairness among multi-users into consideration. Computer simulation demonstrates that the cell average throughput can be increased as large as 17% while maintaining the same cell edge user throughput or the cell edge throughput can be increased by 11% while maintaining the same cell average throughput compared to traditional non-ICIC wireless networks.