| 双瑞利衰落下等增益合并接收系统性能分析 |
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| 引用本文： | 李兆训,窦冬冬,任修坤,胡捍英.双瑞利衰落下等增益合并接收系统性能分析[J].信息工程大学学报,2011,12(1):37-42. |
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| 作者姓名： | 李兆训 窦冬冬 任修坤 胡捍英 |
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| 作者单位： | 信息工程大学信息工程学院,河南郑州,450002 |
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| 基金项目： | 国家科技重大专项基金资助项目 |
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| 摘 要： | 基于双瑞利衰落模型,对等增益合并多支路接收系统的中断特性和平均误符号率性能展开研究.导出了等增益合并输出信噪比n阶矩的封闭表达武,基于Padé逼近原理得到了其相应矩生成函数的近似公式,采用基于矩生成函数的方法得到了系统中断概率和平均误符号率的近似表示武.仿真结果验证了理论方法和数学分析的有效性和准确性.
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| 关 键 词： | 双瑞利衰落 等增益合并 Padé逼近 矩生成函数 中断概率 平均误符号率 |
Performance Analysis of Equal Gain Combining Receiving System in Double-Rayleigh Fading |
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| LI Zhao-xun,DOU Dong-dong,REN Xiu-kun,HU Han-ying.Performance Analysis of Equal Gain Combining Receiving System in Double-Rayleigh Fading[J].Journal of Information Engineering University,2011,12(1):37-42. |
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| Authors: | LI Zhao-xun DOU Dong-dong REN Xiu-kun HU Han-ying |
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| Affiliation: | LI Zhao-xun,DOU Dong-dong,REN Xiu-kun,HU Han-ying(Institute of Information Engineering,Information Engineering University,Zhengzhou 450002,China) |
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| Abstract: | On the basis of double-Rayleigh fading model,the paper investigates the outage performance and average symbol error rate（ASER） for multi-branch receiving system assuming equal gain combining（EGC） strategy.Exact closed-form expression is derived for the n-th moment of the EGC output signal-to-noise ratio（SNR）,while the corresponding moment generating function（MGF） is approximated with Padé approximant theory.The closed-form expressions on outage probability and ASER are achieved by using Padé approximants to the MGF of output SNR.Simulation results illustrate the validity and the accuracy of the theoretical approach and mathematical analysis. |
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| Keywords: | double-Rayleigh fading equal gain combing Padé approximant moment generating function outage probability average symbol error rate |
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