中文摘要：

针对两跳OFDMA中继蜂窝网络，提出一种节能比例公平调度方案．根据不同业务类型的时延需求和单位比特能耗等QoS参数来设计业务调度优先级因子，并给出一种高效的资源分配方案．数值仿真结果表明，本文给出的调度方案在保证不同类型业务QoS需求的同时，能有效降低系统能耗，提高系统吞吐量．

英文摘要：

An energy-saving proportional fair （ESPF） scheduling scheme for OFDMA-based twohop relay networks is proposed. By defining a proportional fair factor which is based on the upper limit of delay for different types of services and the energy consumption per bit, a packet scheduling algorithm and a flexible resource allocation scheme are proposed to avoid the waste of resources. Simulation results show that the proposed scheduling scheme can effectively decrease system energy consumption and improve system throughput while still satisfying the QoS requirements for different types of services.