Weibull衰落信道下多跳通信系统的性能分析

doi:10.13190/jbupt.200904.25.wulh

北京邮电大学学报 ›› 2009, Vol. 32 ›› Issue (4): 25-29.doi: 10.13190/jbupt.200904.25.wulh

Weibull衰落信道下多跳通信系统的性能分析

吴联海林家儒贺志强牛凯

北京邮电大学信息与通信工程学院北京邮电大学信息与通信工程学院北京邮电大学信息与通信工程学院北京邮电大学信息与通信工程学院

收稿日期:2008-11-30 修回日期:2009-04-27 出版日期:2009-08-28 发布日期:2009-08-28
通讯作者: 吴联海

Performance of Multihop Communication Systems over Weibull Fading Channels

Lian-hai Wu Jia-ru Lin

Received:2008-11-30 Revised:2009-04-27 Online:2009-08-28 Published:2009-08-28
Contact: Lian-hai Wu

摘要/Abstract

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.

关键词: 衰落信道, 非再生中继, 信道容量, 平均误比特率

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.

Key words: fading channel, non-regenerative relay, channel capacity, average bit-error probability

吴联海林家儒贺志强牛凯. 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.

Lian-hai Wu Jia-ru Lin. Performance of Multihop Communication Systems over Weibull Fading Channels[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2009, 32(4): 25-29.

参考文献

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Weibull衰落信道下多跳通信系统的性能分析

Performance of Multihop Communication Systems over Weibull Fading Channels

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