针对采用波束赋形技术的正交频分多址接入放大转发中继系统,提出了一种以最大化比例公平因子为目标的资源分配算法.该算法基于凸优化理论,对功率分配、子载波配对、中继选择和用户选择进行了联合优化.理论分析和仿真验证结果表明,所提的资源分配算法能以较低的复杂度实现系统资源分配的公平性,并且可以有效利用波束赋形技术,提高系统容量. Aiming at the Orthogonal Frequency Division Multiple Access (OFDM) amplification and repeater system using beamforming technology, a resource allocation algorithm is proposed to maximize the fairness factor, which is based on the convex optimization theory, Carrier matching, relay selection and user selection.The theoretical analysis and simulation results show that the proposed resource allocation algorithm can achieve fairness of system resource allocation with lower complexity, and can effectively use the beamforming Technology, improve system capacity.