To educe frequency reuse scheme for orthogonal frequency division multiple access (OFDMA) systems, an algorithm based on Cantor Set Theory is introduced. Four fractional frequency reuse (FFR) schemes, improving cell-edge user's performance are derived. A low complexity scheduling algorithm is proposed based on these schemes. This FFR-based scheduling algorithm selects user for transmission according to mapping in FFR and scheduling policy. Performance of FFR as well as FFR-based scheduling is analyzed via simulations. The results demonstrate that, FFR(III) has highest user throughput among four schemes. Furthermore, FFR(III) outperforms other schemes in cell-edge user throughput for 8/9 reuse and is the most robust scheme.
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