| 一种OFDMA上行系统公平资源分配算法 |
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| 引用本文： | 侯利明,林孝康.一种OFDMA上行系统公平资源分配算法[J].清华大学学报(自然科学版),2010(4). |
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| 作者姓名： | 侯利明 林孝康 |
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| 作者单位： | 清华大学电子工程系;清华大学深圳研究生院; |
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| 基金项目： | 清华-高通联合基金项目 |
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| 摘 要： | 为了提高无线网络吞吐量并兼顾用户之间的公平性,该文针对正交频分多址接入(OFDMA)系统的上行链路提出了一种比例公平的自适应资源分配算法。该算法考虑了上行系统中用户功率的离散分布特性,以最大化用户速率的对数和为优化目标。首先通过理论分析给出了上行比例公平资源分配的最优解形式,然后提出了一种兼顾效率和公平的上行OFDMA系统子载波和功率联合分配算法。仿真结果表明:相比传统的上行资源分配算法,该算法能够取得吞吐量和公平性之间的良好折中。
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| 关 键 词： | 正交频分多址接入 上行资源分配 比例公平性 吞吐量最大化 |
Proportional fairness resource allocation algorithm for uplink OFDMA systems |
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| HOULiming,LINXiaokang.Proportional fairness resource allocation algorithm for uplink OFDMA systems[J].Journal of Tsinghua University(Science and Technology),2010(4). |
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| Authors: | HOULiming LINXiaokang |
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| Institution: | HOU+Liming1,LIN+Xiaokang2(1.+Department+of+Electronic+Engineering,Tsinghua+University,Beijing+100084,China,2.+Graduate+School+at+Shenzhen,Shenzhen+518057,China) |
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| Abstract: | This paper presents an uplink proportional fairness resource allocation algorithm to enhance the throughput and guarantee the fairness in wireless networks for the orthogonal frequency division multiple access (OFDMA) systems. With the distributive nature of the users' power in the uplink systems,the algorithm is to maximize the sum logarithm user's data rate under the constraints of given bite error rate and power restriction. At the first place,the optimal solution of this uplink PF resource allocation is... |
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| Keywords: | orthogonal frequency division multiple access uplink resource allocation proportional fairness throughput maximization |
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