A proportional fairness scheduling algorithm for high speed data transmission systems

Abstract

High speed packet data system is getting more attention for forthcoming wireless communication systems. The scheduler is one of key elements in the design for high speed packet data system as it controls the allocation of the shared resources among the users and to a large extent determines the overall behavior of the system. In this thesis, we propose a beneficial scheduler, a proportional fairness scheduling (PFS), for high speed packet data in downlink CDMA. First, we evaluate the system performance using the proposed PFS and computer simulation in 1xEV-DO (1x EVolution-DataOnly［3］) system. Second, the system performance using the proposed PFS and computer simulation in HSDPA (High Speed Downlink Packet Access［4］) system is evaluated. Simulation results reveal the proposed scheduling scheme outperforms the conventional scheduling schemes both in 1xEV-DO and HSDPA system throughput.