计算机工程与应用2016，Vol.52Issue(22)：133-137,184,6.DOI:10.3778/j.issn.1002-8331.1412-0426
一种多用户OFDMA比例公平资源分配算法
Resource allocation algorithm for multiuser OFDMA system with pro-portional fairness
摘要
Abstract
For existing algorithms can’t balance system capacity and fairness well, a new adaptive resource allocation algorithm is proposed to maximize the capacity of multiuser OFDMA system under proportional fairness. Firstly, the algo-rithm selects the appropriate fairness threshold range is selected. Secondly, during sub-carriers allocation stage, the algorithm assigns each sub-carrier to the user with the maximal channel gain under the constraint of the fairness threshold, and real-locates minimum channel gain sub-carrier of the maximum rate user to achieve a trade-off between sub-carriers utilization and fairness. After sub-carriers allocation, the algorithm allocates the power with water-filling line to adjust user propor-tional fairness and find the optimum fairness threshold making the system with maximal capacity finally. Simulation result shows that the algorithm not only guarantees users proportional fairness but also improves system capacity.关键词
正交频分复用多址接入/资源分配/比例公平/公平度门限Key words
Orthogonal Frequency-Division Multiplexing Access(OFDMA)/resource allocation/proportional fairness/fairness threshold分类
信息技术与安全科学引用本文复制引用
石亮,徐蔚鸿,陈沅涛..一种多用户OFDMA比例公平资源分配算法[J].计算机工程与应用,2016,52(22):133-137,184,6.基金项目
国家自然科学基金青年项目（No.61402053）；湖南省科技计划项目（No.2014SK4080）；湖南省教育厅优秀青年项目（No.14B005）。 （）
