| 双瑞利衰落信道下双天线接收系统分集特性分析 |
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| 引用本文： | 李兆训,胡捍英. 双瑞利衰落信道下双天线接收系统分集特性分析[J]. 西安电子科技大学学报(自然科学版), 2011, 38(4): 160-166. DOI: 10.3969/j.issn.1001-2400.2011.04.029 |
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| 作者姓名： | 李兆训 胡捍英 |
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| 作者单位： | 解放军信息工程大学信息工程学院; |
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| 基金项目： | 国家科技重大专项资助项目(2009ZX03003-008-02,2009ZX03003-005) |
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| 摘 要： | 基于双瑞利衰落模型,对采用最大比合并(MRC)和选择式合并(SC)的双天线接收系统的分集特性和平均误符号率性能展开研究.分析了不同合并方式的接收信噪比的统计特性,采用基于矩生成函数的方法,导出了平均误符号率通用表达式.数值计算结果表明:采用双天线接收技术可以对抗双瑞利衰落的影响,减小接收系统的平均误符号率；双瑞利衰落时...
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| 关 键 词： | 双瑞利衰落 双天线接收 最大比合并 选择式合并 平均误符号率 分集增益 |
| 收稿时间： | 2010-05-24 |
Diversity analysis of the double-antenna receiving system over double-Rayleigh fading channels |
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| LI Zhaoxun,HU Hanying. Diversity analysis of the double-antenna receiving system over double-Rayleigh fading channels[J]. Journal of Xidian University, 2011, 38(4): 160-166. DOI: 10.3969/j.issn.1001-2400.2011.04.029 |
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| Authors: | LI Zhaoxun HU Hanying |
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| Affiliation: | (College of Info. Eng., PLA Info. Eng. Univ., Zhengzhou 450002， China) |
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| Abstract: | On the basis of the double-Rayleigh fading model,the paper investigates the diversity performance and average symbol error rate(ASER) for the double-antenna receiving system assuming maximal ratio combining(MRC) and selection combining(SC) strategies.The statistical properties of the receiving signal-to-noise ratio(SNR) are analyzed and a generalized expression on ASER is derived through MGF(moment generating function) based approach for MRC and SC schemes.Numerical calculations show that the fading effects... |
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| Keywords: | double-Rayleigh fading double antennas receiving maximal ratio combining selection combining average symbol error rate diversity gain |
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