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首页> 外文期刊>WSEAS Transactions on Communications >Error-rate Performance of Selection Combining over Generalized Correlated Weibull Fading Channels
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Error-rate Performance of Selection Combining over Generalized Correlated Weibull Fading Channels

机译：广义相关威布尔衰落信道上选择组合的误码率性能

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摘要

Error-rate performance is studied for selection combining (SC) with arbitrary number of diversity branches over generalized correlated Weibull fading channels. Using a transformation of cumulative distribution function of average branch signal-to-noise ratio (SNR), we present the exact error-rate expressions for coherent and non-coherent modulations in infinite series forms. In particular, we develop asymptotic symbol error rate expressions with closed-form which are valid at high SNR. Presented numerical examples show that taking the first several terms of the series based error-rate expression results in improved error-rate estimation compared to the asymptotic error-rate. These error-rate expressions which can be evaluated efficiently indicate some significant insights into the characteristics of SC over generalized correlated Weibull fading channels. The accuracy of the analytical results is validated by the simulation results.
机译：研究了在广义相关的威布尔衰落信道上具有任意数量的分集分支的选择组合（SC）的误码率性能。通过使用平均分支信噪比（SNR）的累积分布函数的变换，我们以无限级数形式给出了相干和非相干调制的精确误差率表达式。特别是，我们开发了封闭形式的渐近符号错误率表达式，这些表达式在高SNR时有效。给出的数值示例表明，与渐近误差率相比，采用基于序列的误差率表达式的前几个项可以提高误差率估计。可以有效评估的这些误码率表达式表明，在广义相关的威布尔衰落信道上，对SC的特性有一些重要的了解。仿真结果验证了分析结果的准确性。

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