Power ratio evaluation for soft frequency reuse technique in LTE-A heterogeneous networks

Soft Frequency Reuse (SFR) has become one of most important enablers for wireless systems, especially orthogonal frequency division multiplexing (OFDM) based ones, to achieve high data-rate communications. To resolve inter-cell interference (ICI), inter-cell interference coordination (ICIC) technique such as Soft Frequency reuse (SFR) can be used. SFR use dynamic power ratio to mitigate ICI without compromising spectrum efficiency. In this paper SFR power ratio is evaluated by simulating throughput value. Simulation result shows that the power ratio control in SFR can effectively optimizing cell performance.