| OFDMA系统家庭基站的上行容量模型和性能分析 |
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| 引用本文： | 胡春静,段洪涛,王文博. OFDMA系统家庭基站的上行容量模型和性能分析[J]. 北京邮电大学学报, 2011, 34(1): 75-79 |
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| 作者姓名： | 胡春静 段洪涛 王文博 |
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| 作者单位： | 泛网无线通信教育部重点实验室(北京邮电大学),北京,100876;国家无线电监测中心,北京,100037 |
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| 基金项目： | 国家科技重大专项项目 (2011ZX0300300201) |
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| 摘 要： | 在正交频分多址(OFDMA)系统中，采用家庭基站技术会增加干扰，而且不再适用于传统容量模型. 为此，对OFDMA系统的家庭基站和宏基站间的干扰进行了分析，理论推导了异频和同频资源分配时的家庭基站和宏基站共存时的上行链路信噪比分布，并给出了中断概率的闭式解及其相应的吞吐量公式. 分析和仿真结果表明，同频资源分配虽然干扰较大，但系统的频谱效率较高，可通过合理的干扰抑制，有效提高家庭基站和宏基站共存时网络的整体性能.
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| 关 键 词： | 家庭基站 干扰共存 正交频分多址系统容量 |
| 收稿时间： | 2009-12-09 |
| 修稿时间： | 2010-01-06 |
Performance Model and Analysis of Uplink Capacity for Femtocell in OFDMA Systems |
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| HU Chun-jing,DUAN Hong-tao,WANG Wen-bo. Performance Model and Analysis of Uplink Capacity for Femtocell in OFDMA Systems[J]. Journal of Beijing University of Posts and Telecommunications, 2011, 34(1): 75-79 |
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| Authors: | HU Chun-jing DUAN Hong-tao WANG Wen-bo |
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| Affiliation: | HU Chun-jing1,DUAN Hong-tao2,WANG Wen-bo1(1.Key Laboratory of Universal Wireless Communication(Beijing University of Posts and Telecommunications),Ministry of Education,Beijing 100876,China,2.State Radio Monitoring Center,Beijing 100037,China) |
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| Abstract: | When the femotocell technique is utilized in the orthogonal frequency division multiple access(OFDMA) system,the interferences will be increased and the traditional capacity model will not be available.Two kinds of radio resource allocation mechanisms,co-channel and orthogonal,are analyzed for the co-existence of femtocell and macrocell,where the signal-to-interference ratio distribution is derived and the closed-form outage probability expressions and the corresponding theoretical capacity formulations are... |
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| Keywords: | femtocell interference co-existence orthogonal frequency division multiple access system capacity |
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