Simple Proportional Fairness Scheduling for OFDMA Frame-Based Wireless Systems

We propose a packet scheduling scheme called OFDMA frame-based proportional fairness (OFPF) for a frame- based OFDMA wireless system. OFPF aims to maximize system throughput as well as maintain fairness between users. We define the scheduling resources as slots of fixed duration per OFDMA subchannel. Furthermore, we assume a realistic traffic pattern in which the user queues are not always backlogged. We suggest a simple method to update the average data rate in the PF ratio. In addition, we introduce an uncomplicated approach to schedule user data using matrix-based calculation. The simulation shows that our scheme improves performance in terms of throughput, delay, and fairness.