05939606

j

05939606 Guo, Kunqi Sun, Lixin Jia, Shilou Utility function based fair data scheduling algorithm for OFDM wireless network. J. Syst. Eng. Electron. 18, No. 4, 731-738 (2007). 2007 Editorial Office of Journal of Systems Engineering and Electronics, Beijing Institute of Aerospace Information, Beijing EN OFDM scheduling algorithm utility function

doi:10.1016/S1004-4132(08)60012-2

Summary: A system model is formulated as the maximization of a total utility function to achieve fair downlink data scheduling in multiuser orthogonal frequency division multiplexing (OFDM) wireless networks. A dynamic subcarrier allocation algorithm (DSAA) is proposed, to optimize the system model. The subcarrier allocation decision is made by the proposed DSAA according to the maximum value of total utility function with respect to the queue mean waiting time. Simulation results demonstrate that compared to the conventional algorithms, the proposed algorithm has better delay performance and can provide fairness under different loads by using different utility functions.