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。
Based on the convex optimization, the algorithm jointly optimizes power allocation, subcarrier pairing, relay selection and user selection.
算法通过比例公平(PF)调度选取首用户，并采用分组与所设计的可调度量准则相结合的方式选择配对用户。
This algorithm makes use of the proportional fair (PF) scheduling to select the primary user, and applies grouping as well as adjustable metric criterion designed to select the paring user.
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