SOFT frequency re-use (SFR) pattern maximizes spectrum utilization in Long Term Evolution (LTE) networks by allowing all macrocell basestations (MBSs) to perform transmission over the entire available spectrum However, considering that LTE also employs micro-, Confederation Based RRM with Proportional Fairness for Soft Frequency Reuse LTE Networks pico- and femtocells basestations (BSs), as small cell BSs (SBSs) within each macrocell, when all subcarriers are occupied, SFR leads to more interference at the SBS’s user equipments (UEs). Furthermore, the presence of femtocells, as low cost alternative to picocells, results in additional interference as they are installed and controlled by the end-user . Therefore, in order to implement the SFR approach effectively Confederation Based RRM with Proportional Fairness for Soft Frequency Reuse LTE Networks in LTE heterogeneous cellular networks (HetNets), all BSs must have adaptive interference avoidance capability . In 4G HetNets, which employ orthogonal frequency division multiple access (OFDMA), downlink interference is practically reduced using radio resource management (RRM). This includes frequency spectrum allocation and power control ,, where in the case of interfering BSs, spectrum allocation minimises interference by allocating different subsets of subcarriers to those BSs Confederation Based RRM with Proportional Fairness for Soft Frequency Reuse LTE Networks This however reduces the ability of the interfering BSs to fully exploit multiuser diversity and consequently reduces the achievable throughput. Thus, in order to capture this, it is important to evaluate the combined performance of RRM and scheduling together. The most popular scheduling algorithms in OFDMA systems include maximum sum rate (MSR), maximum fairness (MF), proportional rate constraints (PRC), proportional fairness (PF) and the cumulative distribution function based scheduling policy , Confederation Based RRM with Proportional Fairness for Soft Frequency Reuse LTE Networks , where it retains a similar characteristic with PF scheduler that maximises multiuser diversity and maximises users fairness. Due to this reason, PF based scheduler is commonly applied in the cellular environment . Although fairness Confederation Based RRM with Proportional Fairness for Soft Frequency Reuse LTE Networks of a system can be assessed with proportion of resources assigned to a user with some normalisation factor [10], this paper interest in assessing the fairness in terms of quality of service improvement. In general, OFDMA RRMs can be classified into three categories, which are, distributed, centralized and self-organizing network. Distributed RRM works by allowing each SBS to allocate its UEs’ subcarriers based on measurements of the interference received , while the centralized RRM uses a central node to compute the subcarriers allocation for all UEs. On the other hand, SON RRM utilizes a number of functions to manage the resource. Often, SON RRM uses both the distributed and centralized approach to reduce interference.