OFDM系统中基于公平性的无线资源分配算法
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摘要
研究了正交频分复用(orthogonal frequency division multiplexing,OFDM)系统中无线网络资源分配的优化问题。基于已有的分配顺序公平算法,提出了一种改进的基于用户容量最大化的子载波分配算法,该算法通过改进对剩余子载波的分配方式达到系统容量最大化,进一步优化算法的公平性,得到系统容量与公平性折中算法。仿真结果表明,折中算法具有更大的系统容量,并具有较好的公平性,且算法复杂度较低。
The optimization of wireless network resource allocation in orthogonal frequency division multiplexing(OFDM) system is studied. On the ground of the existing allocation order fairness algorithm, an improved subcarrier allocation algorithm based on user capacity maximization is proposed. The algorithm maximizes the system capacity by improving the allocation of residual subcarriers, and then trades off fairness. The simulation results show that the proposed algorithm has larger system capacity, better fairness and lower complexity.
The optimization of wireless network resource allocation in orthogonal frequency division multiplexing(OFDM) system is studied. On the ground of the existing allocation order fairness algorithm, an improved subcarrier allocation algorithm based on user capacity maximization is proposed. The algorithm maximizes the system capacity by improving the allocation of residual subcarriers, and then trades off fairness. The simulation results show that the proposed algorithm has larger system capacity, better fairness and lower complexity.
引文
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[3] 刘叶,葛万成.OFDMA 用户容量最大化的子载波分配优化算法[J].2017,8(8):1638-1641.
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[5] 霍丽丽.高速移动MIMO-OFDMA系统资源分配算法的研究[D].北京:北京交通大学,2017.
[6] 汪瑞.下行多用户OFDM系统的资源分配算法研究[D].兰州:兰州大学,2018.
[7] 韩杰,宋晓勤,董莉,等.一种基于OFDM认知无线电网络的次优动态资源分配算法[J].计算机学报2018(5).
[8] 王蔚,覃锡忠,贾振红,等.基于鱼群算法的认知OFDM资源分配算法研究[J].微电子学与计算机,2017,34(6):62-66.
[9] 文碧青.基于公平性的MIMO-OFDMA动态资源分配算法的研究[J].农村经济与科技,2016,27(14):298-298.
[10] Rhee W,Cioffi J M.Increase in capacity of multiuser OFDM system using dynamic subchannel allocation[C]//Proc IEEE Vehicular Technology Conference.2000.
[11] 李然.OFDM系统资源分配技术研究[D].秦皇岛:燕山大学,2015.
[12] 陆彦辉,苗盼盼,杨守义.大规模MIMO系统中功率分配算法的能效研究[J].郑州大学学报(工学版),2017,38(4):65-68.
[2] Jang J,Lee K B.Transmit power adaptation for multiuser OFDM systems[J].IEEE Journal on Selected Areas in Communications,2003,21(2):171-178.
[3] 刘叶,葛万成.OFDMA 用户容量最大化的子载波分配优化算法[J].2017,8(8):1638-1641.
[4] Shen Z,Andrews J G,Evans B L.Adaptive resource allocation in multiuser ofdm systems with proportional rate constraints[J].IEEE transactions on wireless communications,2005,4(6):2726-2737.
[5] 霍丽丽.高速移动MIMO-OFDMA系统资源分配算法的研究[D].北京:北京交通大学,2017.
[6] 汪瑞.下行多用户OFDM系统的资源分配算法研究[D].兰州:兰州大学,2018.
[7] 韩杰,宋晓勤,董莉,等.一种基于OFDM认知无线电网络的次优动态资源分配算法[J].计算机学报2018(5).
[8] 王蔚,覃锡忠,贾振红,等.基于鱼群算法的认知OFDM资源分配算法研究[J].微电子学与计算机,2017,34(6):62-66.
[9] 文碧青.基于公平性的MIMO-OFDMA动态资源分配算法的研究[J].农村经济与科技,2016,27(14):298-298.
[10] Rhee W,Cioffi J M.Increase in capacity of multiuser OFDM system using dynamic subchannel allocation[C]//Proc IEEE Vehicular Technology Conference.2000.
[11] 李然.OFDM系统资源分配技术研究[D].秦皇岛:燕山大学,2015.
[12] 陆彦辉,苗盼盼,杨守义.大规模MIMO系统中功率分配算法的能效研究[J].郑州大学学报(工学版),2017,38(4):65-68.