| Nakagami-m衰落信道下固定增益中继系统性能分析 |
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| 引用本文： | 赵睿,李春国,王海荣,杨绿溪. Nakagami-m衰落信道下固定增益中继系统性能分析[J]. 电子学报, 2011, 39(1): 162-167 |
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| 作者姓名： | 赵睿 李春国 王海荣 杨绿溪 |
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| 作者单位： | 东南大学信息科学与工程学院;华侨大学信息科学与工程学院; |
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| 基金项目： | 国家973重点基础研究发展计划(No.2007CB310603); 国家科技重大专项(No.2009ZX03003-004); 国家自然科学基金(No.60672093,No.60902012); 国家863高技术研究发展计划(No.2007AA01Z262); 教育部博士点新教师基金(No.20090092120013) |
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| 摘 要： | 在Nakagami-m衰落信道下,分析了两跳固定增益放大转发中继通信系统的性能.首先采用基于概率密度函数(PDF)的性能分析法推导了无协作分集时系统的中断概率和平均误符号率(ASER)的闭合表达式,然后采用基于矩生成函数(MGF)的方法推导了有协作分集时系统的中断概率和ASER表达式以及接收信噪比的n阶矩的闭合表达式.仿真结果显示,所推导的闭合表达式与数值仿真结果吻合良好,协作分集和较大的m值可提升系统性能,中继前后两跳的信道质量对系统性能的影响并不相同.
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| 关 键 词： | 放大转发中继 协作分集 Nakagami-m衰落信道 中断概率 平均误符号率 |
| 收稿时间： | 2009-08-04 |
Performance Analysis of Fixed Gain Relaying Systems in Nakagami-m Fading Channels |
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| ZHAO Rui,LI Chun-guo,WANG Hai-rong,YANG Lü-xi. Performance Analysis of Fixed Gain Relaying Systems in Nakagami-m Fading Channels[J]. Acta Electronica Sinica, 2011, 39(1): 162-167 |
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| Authors: | ZHAO Rui LI Chun-guo WANG Hai-rong YANG Lü-xi |
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| Affiliation: | ZHAO Rui1,2,LI Chun-guo1,WANG Hai-rong1,YANG Lü-xi1(1.School of Information Science and Engineering,Southeast University,Nanjing,Jiangsu 210096,China,2.College of Information Science and Engineering,Huaqiao University,Quanzhou,Fujian 362021,China) |
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| Abstract: | The performance of dual-hop communication systems with fixed gain amplify-and-forward relay is analyzed over non-identical Nakagami-m fading channel.First,Closed-form expressions for outage probability and average symbol error rate(ASER) are derived based on probability density function(PDF) method for the system without cooperative diversity.Then,the expressions for outage probability and ASER and closed-form expression of the n-th moment of received SNR are derived based on moment generating function(MGF)... |
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| Keywords: | amplify-and-forward relay cooperative diversity Nakagami-m fading channel outage probability average symbol error rate(ASER) |
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