| OFDMA系统中基于有限反馈的资源公平调度算法 |
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| 引用本文： | 张冬梅,王金龙. OFDMA系统中基于有限反馈的资源公平调度算法[J]. 解放军理工大学学报(自然科学版), 2005, 6(2): 103-107 |
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| 作者姓名： | 张冬梅 王金龙 |
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| 作者单位： | 解放军理工大学,通信工程学院,江苏,南京,210007;解放军理工大学,通信工程学院,江苏,南京,210007 |
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| 基金项目： | 国家自然科学基金资助项目 ( 6 0 3 72 0 80 ) |
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| 摘 要： | OFDMA是下一代无线通信系统中在下行链路上实现大容量通信的一种有前途的技术，其中的关键技术之一是在共享信道的用户间公平合理地分配子载波和功率。分析了功率约束下系统最大吞吐量的实现方法，提出了一种基于有限反馈的资源公平调度算法，这种算法具有系统所需反馈信息量少、用户间公平性好等性能，并通过仿真进行了验证。
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| 关 键 词： | 正交频分多址接入 资源调度 有限反馈 比例公平 |
| 文章编号： | 1009-3443(2005)02-0103-05 |
| 修稿时间： | 2004-09-02 |
Fair resource scheduling based on limited feedback in OFDMA system |
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| ZHANG Dong-mei and WANG Jin-long. Fair resource scheduling based on limited feedback in OFDMA system[J]. Journal of PLA University of Science and Technology(Natural Science Edition), 2005, 6(2): 103-107 |
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| Authors: | ZHANG Dong-mei and WANG Jin-long |
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| Affiliation: | Institute of Communications Engineering, PLA Univ. of Sci. & Tech., Nanjing 210007, China;Institute of Communications Engineering, PLA Univ. of Sci. & Tech., Nanjing 210007, China |
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| Abstract: | Orthogonal frequency division multiple access (OFDMA)is a promising technique for achieving high downlink capacities in next generation wireless communication system. A key issue in OFDMA is the allocation of the sub-carriers and power among users sharing the channel. The realization of the maximum system throughputs under power limitation was analyzed, and a fair resource scheduling algorithm based on limited feedback proposed. Simulation results show that the proposed algorithm needs only a little feedback information and has fairness among users. |
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| Keywords: | OFDMA(orthogonal frequency division multiple access) resource scheduling limited feedback proportional fair |
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