On the Dependence between FPC and ICIC in SC-FDMA Cellular Systems

The performance of an SC-FDMA cellular system highly depends on the proper selection of the parameters involved in the Fractional Power Control (FPC) algorithm. When a real cellular system is deployed, a power control algorithm must be combined with a resource allocation strategy under some interference coordination scheme, such as the well known Fractional Frequency Reuse (FFR). However, in order to set a suitable operation point for FPC, previous studies have not considered enough the joint behavior of all those factors. In this paper, we analyze how the system performance is affected when different FPC operation points are combined with different Inter-Cell or Inter-Sector Interference Coordination (ICIC/ISIC) schemes derived from FFR. Our study reveals that different power control parameters must be set depending on the per-cell or per-sector basis of the frequency reuse strategy considered in the interference coordination scheme.