An improved fair subcarrier allocation algorithm for multiuser OFDM system

An improved subcarrier allocation algorithm for multiuser OFDM system was performed, In order to improve the proportional fairness of channel resource allocation. A parameter a was introduced into the new algorithm. The subcarrier allocation algorithm was divided into two steps: aN subcarrier allocation algorithm and residual subcarrier allocation. By simulation experiment with the proposed algorithm, D_n algorithm and Shen algorithm, the proposed algorithm has a good performance in the spectral efficiency, normalized capacity, sum capacity and fairness.