Simulation based performance evaluation of ICI mitigation schemes for broadband wireless access networks

Inter-cell interference (ICI) problem is the key issue in broadband wireless access (BWA) systems, and it has been given significant attentions over the years. In order to solve the problem, several resource reuse schemes applying restrictions to the downlink resource management are evaluated in this paper. The goal of ICI mitigation schemes is to decrease inter-cell interference and get higher cell throughput as well as spectral efficiency (SE). In this paper we evaluated the performance of ICI mitigation schemes containing frequency reuse factor 1(reuse-1), frequency reuse factor 3(reuse-3), soft frequency reuse (SFR) and priority frequency reuse (PFR) schemes, based on simulation. Numerical results show that a system using different schemes behaves different in terms of overall capacity, cell throughput, spectral efficiency (SE) and average delay.