International Conference on Mechanical Engineering and Technology (ICMET-London 2011)
48 A Generalized Proportional Fairness Scheduler for Broadband OFDMA Systems with Heterogeneous Traffic
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The popular proportional fairness scheduler (PF) is very suitable for trade-off between system throughput and fairness, but we found a fatal problem when applying it for broadband networks with heterogeneous traffic. Because the PF scheduler only considers the average throughput, it will favor users with low data rate. This paper proposes a generalized PF scheduler which considers the profit instead of the average throughput. Simulation results show that the proposed scheduler can provide better fairness and transient behavior.