| 一种新型的OFDMA系统调度算法 |
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| 引用本文： | 王瑞文.一种新型的OFDMA系统调度算法[J].通信技术,2011,44(3):9-10,14. |
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| 作者姓名： | 王瑞文 |
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| 作者单位： | 南京邮电大学通信与信息工程学院,南京,210003 |
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| 摘 要： | 近年来正交频分多址接入（OFDMA,Orthogonal Frequency Division Multiplexing Access）技术在无线通信中的应用越来越广泛。针对OFDMA系统中的资源调度问题,介绍和分析了OFDMA系统中常见的分组调度算法-轮询算法、最大载干比算法和比例公平算法,并且提出了一种结合了遗传搜索的自适应调度算法。最后在此基础上对这四种分组调度算法进行了仿真和分析,仿真结果表明,不管是系统吞吐量还是公平性,自适应调度算法都有较好的性能提升。
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| 关 键 词： | 分组调度算法 轮询算法 最大载干比算法 比例公平调度算法 自适应算法 |
A New Scheduling Algorithm for OFDMA System |
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| WANG Rui-wen.A New Scheduling Algorithm for OFDMA System[J].Communications Technology,2011,44(3):9-10,14. |
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| Authors: | WANG Rui-wen |
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| Affiliation: | WANG Rui-wen (College of Communication and InformationEngineering,Nanjing University of Posts &Telecommunications,Nanjing Jiangsu210003,China) |
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| Abstract: | Orthogonal Frequency-Division Multiplexing Addressing(OFDMA) technology is very popular in wireless communications in recent years.Aiming at the resourcescheduling in OFDMAsystem,this paper gives three typical packet scheduling algorithms: Round Robin,Maximum C/I and Proportional Fair.Thus a new adaptive scheduling algorithm combined with genetic search is proposed.Finally this paper describes the simulation and analysis on these four scheduling algorithms.The simulation results show that the proposed algor... |
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| Keywords: | packet scheduling algorithms Round Robin Maximum C/I Proportional Fairness adaptive scheduling algorithm |
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