提出了2种适用于多用户正交频分复用多址接入(OFDMA)系统的分组数据调度算法,分别是多载波正比公平(MPF)算法和增强容量的MPF算法.理论分析和数值结果表明,2种算法都能保证用户的不同业务质量(QoS)要求,并且实现用户数据的公平发送,但是与MPF相比,增强容量的MPF算法具有更大的灵活性和更高的系统吞吐量.
Two downlink packet data scheduling algorithms applied to orthogonal frequency division multiple access (OFDMA) broadband wireless access systems are proposed, which are multi-carrier proportional fair (MPF) scheduler and MPF algorithm enhancing capacity. The results demonstrate that they both provide fairness for users with explicit quality of service (QoS) guarantees, but MPF algorithm enhancing capacity achieves higher system throughput compared with MPF scheduler with more flexible parameter setting.