| Weibull衰落信道下多跳通信系统的性能分析 |
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| 引用本文： | 吴联海,贺志强,牛凯,徐文波,林家儒.Weibull衰落信道下多跳通信系统的性能分析[J].北京邮电大学学报,2009,32(4):25-29. |
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| 作者姓名： | 吴联海 贺志强 牛凯 徐文波 林家儒 |
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| 作者单位： | 北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876 |
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| 基金项目： | 国家重点基础研究发展计划项目，国家自然科学基金项目 |
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| 摘 要： | 分析了在独立不同分布Weibull衰落信道下配有非再生中继的多跳无线通信系统性能. 基于调和几何平均不等式，得到了更易于数学处理的端到端信噪比上界. 通过计算上界的矩母函数、概率密度函数和矩等闭式表达式，得到了多跳通信系统的平均端到端信噪比、信道容量和平均误比特率等重要性能界. 数值仿真结果表明该界是紧的.
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| 关 键 词： | 衰落信道 非再生中继 信道容量 平均误比特率 |
| 收稿时间： | 2008-11-30 |
| 修稿时间： | 2009-4-27 |
Performance of Multihop Communication Systems over Weibull Fading Channels |
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| WU Lian-hai,HE Zhi-qiang,NIU Kai,XU Wen-bo,LIN Jia-ru.Performance of Multihop Communication Systems over Weibull Fading Channels[J].Journal of Beijing University of Posts and Telecommunications,2009,32(4):25-29. |
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| Authors: | WU Lian-hai HE Zhi-qiang NIU Kai XU Wen-bo LIN Jia-ru |
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| Abstract: | End to end performance of multihop wireless communication systems with non regenerative relays operating over independent not necessarily identically distributed Weibull fading channels is presented. Based on the inequality between harmonic and geometric means, the end to end signal to noise ratio (SNR) is bounded upper. Novel expressions are derived for the moment generating, probability density, and moment functions of the bound in closed form. Using these statistical results, convenient closed form bounds are obtained for the average end to end SNR, the channel capacity, and the average bit error probability of multihop wireless communication systems. Numerical results show the tightness of the proposed bounds. |
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| Keywords: | fading channel non-regenerative relay channel capacity average bit-error probability |
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