Abstract
This paper proposes an adaptive soft frequency reuse (SFR) scheme with the goal of improving the cell-edge performance as well as the overall cell throughput. The proposed scheme is effective, flexible and cell environments adaptive. Specifically, we consider both consecutive and distributed subcarrier allocation for cell-edge users, and use the QoS deficiency metric to dynamically adjust the subcarrier power level of cell-edge users in order to achieve the required throughput. Simulations are performed to demonstrate the effectiveness of the proposed adaptive SFR scheme, and results show that the proposed SFR solution can provide significant gain improvement in terms of both user throughput and cell throughput over the reuse one scheme without SFR as well as the conventional SFR scheme.
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