| 微/宏混合实现复合衰落下分集系统性能分析 |
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| 引用本文： | 石海东,胡冬梅.微/宏混合实现复合衰落下分集系统性能分析[J].价值工程,2012,31(10):169-171. |
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| 作者姓名： | 石海东 胡冬梅 |
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| 作者单位： | 海军潜艇学院航海观通系,青岛,266044 |
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| 摘 要： | 针对相关Rayleigh-Lognormal复合衰落信道环境,研究采用微/宏混合分集工作方式的分布式天线系统的性能。以两支路微选择分集/L支路宏最大比分集系统为例,得到分集接收SNR统计特征的理论闭式,并由此分析了分集对信道衰落的影响。仿真结果验证了理论分析的正确性。
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| 关 键 词： | 分布式天线系统 相关复合衰落信道 微/宏分集系统 衰落量 |
Performance Analysis of Micro/Macro-diversity System in Cross-correlated Composite Fading Channels |
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| Shi Haidong
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Hu Dongmei.Performance Analysis of Micro/Macro-diversity System in Cross-correlated Composite Fading Channels[J].Value Engineering,2012,31(10):169-171. |
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| Authors: | Shi Haidong Hu Dongmei |
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| Institution: | (Department of Navigation and Communication,Naval Submarine Academy,Qingdao 266044,China)Shi Haidong;Hu Dongmei |
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| Abstract: | A channel fading properties analysis framework with micro/macro-diversity receiver in distributed antenna system is presented.The channel model assumes frequency-selective channel with coherent Rayleigh/Lognormal composite fading statistics.Closed-form expressions for received SNR statistic characteristics are analyzed for two-branch microscopic selection combining(SC) and L—branch macroscopic maximal ratio combining(MRC) hybrid diversity system.As shown in this paper,micro/macro-diversity system outperforms single-input single-output system and traditional microscopic diversity system,owing to diversity gains benefited from combating shadowing and multipath fading simultaneously. |
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| Keywords: | distributed antenna system correlated composite fading channel micro/macro-diversity system amount of fading |
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